Cross-listings
- hep-th/0610054 [abs, ps, pdf, other] :
-
Title: Inflation without Inflaton(s)
Authors:
Scott Watson,
Malcolm J. Perry,
Gordon L. Kane,
Fred C. Adams
Comments: 13 pages, 3 eps figures
We propose a model for early universe cosmology without the need for
fundamental scalar fields. Cosmic acceleration and phenomenologically viable
reheating of the universe results from a series of energy transitions, where
during each transition vacuum energy is converted to thermal radiation. We show
that this `cascading universe' can lead to successful generation of adiabatic
density fluctuations and an observable gravity wave spectrum in some cases,
where in the simplest case it reproduces a spectrum similar to slow-roll models
of inflation. We also find the model provides a reasonable reheating
temperature after inflation ends. This type of model can also be used to
explain the smallness of the vacuum energy today.
- physics/0610031 [abs, pdf] :
-
Title: Messaging to Extra-Terrestrial Intelligence
Authors:
Alexander Zaitsev
Comments: 14 pages, 3 tables
Subj-class: Popular Physics; Space Physics
Throughout the entire history of terrestrial civilization, only four projects
involving transmitting of interstellar radio messages (IRMs) have yet been
fully developed and realized. Nevertheless, we should understand a simple thing
-- if all civilizations in the Universe are only recipients, and not
message-sending civilizations, than no SETI searches make any sense. We present
the theory and methodology of composing and transmitting of future IRMs.
Replacements
- astro-ph/0505167 [abs, ps, pdf, other] :
-
Title: Is There a Microlensing Puzzle?
Authors:
N.W. Evans (Cambridge),
V. Belokurov (Cambridge)
Comments: 6 pages, 2 figures, MNRAS, in press, clarification and reworking of
the original version
Note: replaced with revised version Fri, 6 Oct 2006 09:29:20 GMT (86kb)
- astro-ph/0603326 [abs, ps, pdf, other] :
-
Title: The hot stars in orbit around the M31 central supermassive black hole:
are they young or old?
Authors:
Pierre Demarque,
Shanil Virani (Yale University)
Comments: 8 pages, 2 figures, accepted by A&A for publication, in press
Note: replaced with revised version Thu, 5 Oct 2006 22:39:53 GMT (83kb)
- astro-ph/0605205 [abs, ps, pdf, other] :
-
Title: Inflation, dark matter and dark energy in the string landscape
Authors:
Andrew R Liddle,
L Arturo Ureña-López
Comments: 4 pages RevTex4. Updated to include a toy model of reheating. Matches
version accepted by Phys Rev Lett
Note: replaced with revised version Thu, 5 Oct 2006 21:04:10 GMT (10kb)
- astro-ph/0605521 [abs, ps, pdf, other] :
-
Title: The Theory of Bodily Tides. I. The Models and the Physics
Authors:
Michael Efroimsky
Subj-class: Astrophysics; Geophysics; Classical Physics
Note: replaced with revised version Fri, 6 Oct 2006 13:32:03 GMT (49kb)
- astro-ph/0607559 [abs, ps, pdf, other] :
-
Title: A deep wide survey of faint low surface brightness galaxies in the
direction of the Coma cluster of galaxies
Authors:
C. Adami,
R. Scheidegger,
M. P. Ulmer,
F. Durret,
A. Mazure,
M. J. West,
C. J. Conselice,
M. Gregg,
S. Kasun,
R. Pello,
J. P. Picat
Comments: To be published in A&A, 3 jpeg figures, data and full resolution
article can be retrieved from this http URL Updated CFHT
ackowledgements
Note: replaced with revised version Fri, 6 Oct 2006 08:42:08 GMT (377kb)
- astro-ph/0608256 [abs, ps, pdf, other] :
-
Title: Hydrogen-like nitrogen radio line from hot interstellar and warm-hot
intergalactic gas
Authors:
R. A. Sunyaev (MPA; Iki),
D. Docenko (MPA)
Comments: 12 pages, 5 figures, accepted by Astronomy Letters; v3: details
added; error fixed
Note: replaced with revised version Fri, 6 Oct 2006 14:11:03 GMT (54kb)
- astro-ph/0608535 [abs, ps, pdf, other] :
-
Title: Dark matter burners
Authors:
I. V. Moskalenko (Stanford),
L. Wai (SLAC)
Comments: 4 pages, 3 figures, emulateapj.cls, minor changes in the text,
references added, conclusions unchanged; submitted to ApJL
Note: replaced with revised version Fri, 6 Oct 2006 05:23:13 GMT (16kb)
- astro-ph/0609391 [abs, ps, pdf, other] :
-
Title: Spatial variations of the optical galaxy luminosity functions and red
sequences in the Coma cluster: clues to its assembly history
Authors:
C. Adami,
F. Durret,
A. Mazure,
R. Pello,
J. P. Picat,
M. West,
B. Meneux
Comments: To be published in A&A, several figures in jpg format, full
resolution figures and paper available at this http URL under the
Coma page. The lacking figures are available at the same adress. Updated CFHT
acknowledgements and aa format
Note: replaced with revised version Fri, 6 Oct 2006 08:29:36 GMT (929kb)
- astro-ph/0610033 [abs, ps, pdf, other] :
-
Title: Experimental Mg I oscillator strengths and radiative lifetimes for
astrophysical applications on metal-poor stars - New data for the Mg I b
triplet
Authors:
M. Aldenius (1),
J.D. Tanner (2),
S. Johansson (1),
H. Lundberg (3),
S.G. Ryan (2 and 4) ((1) Lund Observatory, (2) The Open University, (3) Lund Institute of Technology, (4) University of Hertfordshire)
Comments: Accepted for publication in A&A, 8 pages, 6 figures, Eq. 7 corrected
Note: replaced with revised version Fri, 6 Oct 2006 11:56:01 GMT (124kb)
- astro-ph/0610129 [abs, ps, pdf, other] :
-
Title: Bayesian Single-Epoch Photometric Classification of Supernovae
Authors:
Dovi Poznanski,
Dan Maoz,
Avishay Gal-Yam
Comments: AJ submitted, minor corrections
Note: replaced with revised version Fri, 6 Oct 2006 06:11:06 GMT (45kb)
- astro-ph/0610139 [abs, ps, pdf, other] :
-
Title: Hadronic model for radio-to-TeV gamma-ray emission from PSR B1259-63
Authors:
A.Neronov,
M.Chernyakova
Comments: Proceeding of "The multi messenger approach to high energy gamma ray
sources", Barcelona, June 2006
Note: replaced with revised version Fri, 6 Oct 2006 08:49:38 GMT (84kb)
- astro-ph/0610166 [abs, ps, pdf, other] :
-
Title: Dust Destruction in Fast Shocks of Core-Collapse Supernova Remnants in
the Large Magellanic Cloud
Authors:
Brian J. Williams,
K.J. Borkowski,
S.P. Reynolds,
W.P. Blair,
P. Ghavamian,
S.P. Hendrick,
K.S. Long,
S. Points,
J.C. Raymond,
R. Sankrit,
R.C. Smith,
P.F. Winkler
Comments: Accepted for publication in ApJ Letters, references fixed
Note: replaced with revised version Fri, 6 Oct 2006 14:22:59 GMT (90kb)
- gr-qc/0605029 [abs, ps, pdf, other] :
-
Title: On existence of matter outside a static black hole
Authors:
Tetsuya Shiromizu,
Sumio Yamada,
Hirotaka Yoshino
Comments: 4pages, final version accepted for publication in Journal of
Mathematical Physics
Subj-class: General Relativity and Quantum Cosmology; Differential Geometry
Note: replaced with revised version Thu, 5 Oct 2006 23:45:56 GMT (19kb)
- gr-qc/0609024 [abs, ps, pdf, other] :
-
Title: Observation of Incipient Black Holes and the Information Loss Problem
Authors:
Tanmay Vachaspati,
Dejan Stojkovic,
Lawrence M. Krauss
Comments: 15 pages; 9 figures. New section on infalling observer, further
discussion, additional references and acknowledgements. Version to be
submitted to PRD
Note: replaced with revised version Fri, 6 Oct 2006 01:29:50 GMT (324kb)
- gr-qc/0609033 [abs, ps, pdf, other] :
-
Title: Spinor Theory of Gravity
Authors:
M. Novello
Note: replaced with revised version Fri, 6 Oct 2006 12:22:06 GMT (18kb)
- nucl-ex/0604004 [abs, ps, pdf, other] :
-
Title: Arguments for a "U.S. Kamioka": SNOLab and its Implications for North
American Underground Science Planning
Authors:
W. C. Haxton,
K. A. Philpott,
Robert Holtz,
Philip Long,
J. F. Wilkerson
Comments: 23 pages, 10 figures; revised version includes discusion about
neutrino-factory magic baselines
Subj-class: Nuclear Experiment; Instrumentation and Detectors
Note: replaced with revised version Fri, 6 Oct 2006 05:49:41 GMT (686kb)
- nlin.CD/0609061 [abs, ps, pdf, other] :
-
Title: "Stokes' Second Problem in High Frequency Limit. Application to Micro
(Nano)- Scillators
Authors:
V. Yakhot,
C. Colosqui
Subj-class: Chaotic Dynamics; Soft Condensed Matter; Fluid Dynamics
Note: replaced with revised version Fri, 6 Oct 2006 18:21:58 GMT (59kb)
For subscribe options to combined physics archives,
e-mail To: physics@arXiv.org, Subject: subscribe
-----------------------------------------------------------------------------
For help on viewing and making submissions, see this http URL
For a list of archive mirror sites, see this http URL
-----------------------------------------------------------------------------
Third-party submissions cause excessive problems.
Author self-submissions are exceedingly preferred.
E-mail submissions have been discontinued in favor of better support for
Web submissions. See this http URL
Cross-listings
- cond-mat/0610130 [abs, ps, pdf, other] :
-
Title: A Position Sensitive X-ray Spectrophotometer using Microwave Kinetic
Inductance Detectors
Authors:
Benjamin A. Mazin,
Megan E. Eckart,
Bruce Bumble,
Sunil Golwala,
Peter K. Day,
Jonas Zmuidzinas,
Fiona A. Harrison
Comments: 4 pages, 2 figures. Submitted to Applied Physics Letters, August 25,
2006
Subj-class: Superconductivity
The surface impedance of a superconductor changes when energy is absorbed and
Cooper pairs are broken to produce single electron (quasiparticle) excitations.
This change may be sensitively measured using a thin-film resonant circuit
called a microwave kinetic inductance detector (MKID). The practical
application of MKIDs for photon detection requires a method of efficiently
coupling the photon energy to the MKID. We present results on position
sensitive X-ray detectors made by using two aluminum MKIDs on either side of a
tantalum photon absorber strip. Diffusion constants, recombination times, and
energy resolution are reported. MKIDs can easily be scaled into large arrays.
- hep-ph/0609126 [abs, ps, pdf, other] :
-
Title: Right-Handed Sneutrino Condensate Cold Dark Matter and the
Baryon-to-Dark Matter Ratio
Authors:
John McDonald
Comments: 21 pages LaTeX, additional discussion and references, incorrect v.2
previously submitted
The similarity of the observed densities of baryons and cold dark matter
suggests that they have a common or related origin. This can be understood in
the context of the MSSM with right-handed (RH) sneutrinos if cold dark matter
is due to a d = 4 flat direction condensate of very weakly coupled RH sneutrino
LSPs and the baryon asymmetry is generated by Affleck-Dine leptogenesis along
the d = 4 (H_{u}L)^{2} flat direction. The correct density of RH sneutrino dark
matter is obtained if the reheating temperature is in the range 10^{6}-10^{8}
GeV. A cold dark matter isocurvature perturbation close to present
observational bounds is likely in the case of inflation driven by a D-term or
by an F-term with suppressed Hubble corrections to the A-terms. An observable
baryon isocurvature perturbation is also possible in the case of D-term
inflation models.
- hep-ph/0610070 [abs, ps, pdf, other] :
-
Title: CPT-odd Leptogenesis
Authors:
Pavel A. Bolokhov,
Maxim Pospelov
Comments: 19 pages, 4 figures
We calculate the baryon asymmetry of the Universe resulting from the
combination of higher-dimensional Lorentz-noninvariant CPT-odd operators and
dimension five operators that induce the majorana mass for neutrinos. The
strength of CPT-violating dimension five operators capable of producing the
observed value of baryon abundance is directly related to neutrino masses and
found to be in the trans-Planckian range (10^{-24}-10^{-22}) GeV^{-1}.
Confronting it with observational tests of Lorentz symmetry, we find that this
range of Lorentz/CPT violation is strongly disfavored by the combination of the
low-energy constraints and astrophysical data.
- nucl-th/0610013 [abs, ps, pdf, other] :
-
Title: Nucleosynthesis in decompressing neutron star matter
Authors:
Prashanth Jaikumar (Ohio U., Argonne (PHY)),
Bradley S. Meyer (Clemson U.),
Kaori Otsuki (U. Chicago),
Rachid Ouyed (U. Calgary)
Comments: 12 pages, 9 figures
We explore heavy-element nucleosynthesis by rapid neutron capture (r-process)
in the decompressing ejecta from the surface of a neutron star. The
decompression is triggered by a violent phase transition to strange quark
matter (quark-nova scenario). The presence of neutron-rich large Z nuclei
(40,95)<(Z,A)<(70,177), the large neutron-to-seed ratio, and the low electron
fraction Ye ~ 0.03 in the decompressing ejecta present favorable conditions for
the r-process. We perform network calculations that are adapted to the
quark-nova conditions, and which mimic usual (n-\gamma) equilibrium r-process
calculations during the initially cold decompression phase. They match to
dynamical r-process calculations at densities below neutron drip (4x10^11
g/cc). We present results for the final element abundance distribution with and
without heating from nuclear reactions, and compare to the solar abundance
pattern of r-process elements. We highlight the distinguishing features of
quark-novae by contrasting it with conventional nucleosynthesis sites such as
type II supernovae and neutron star mergers, especially in the context of
heavy-element compositions of extremely metal-deficient stars.
Replacements
- astro-ph/0507381 [abs, ps, pdf, other] :
-
Title: Testing the "Dark-Energy"-Dominated Cosmology via the Solar-System
Experiments
Authors:
Yu.V. Dumin (IZMIRAN, Russian Academy of Sciences, Troitsk, Moscow reg. & IPAM, University of California, Los Angeles)
Comments: LaTeX (mn2e documentclass) file, 6 pages, 2 eps figures. Ver.2: main
text rewritten with minor changes and subdivided into sections; two
appendices added; one figure replaced; bibliography supplemented and
corrected. Ver.3: important additions to the text and bibliography; a few
misprints corrected
Note: replaced with revised version Sun, 8 Oct 2006 04:47:04 GMT (36kb)
- astro-ph/0602104 [abs, ps, pdf, other] :
-
Title: Nuclear Astrophysics of Worlds in the String Landscape
Authors:
Craig J. Hogan
Comments: 11 pages, Latex
Note: replaced with revised version Sun, 8 Oct 2006 01:03:50 GMT (22kb)
- astro-ph/0602409 [abs, ps, pdf, other] :
-
Title: Star Clusters with Primordial Binaries: II. Dynamical Evolution of
Models in a Tidal Field
Authors:
M. Trenti,
D.C. Heggie,
P. Hut
Comments: 15 pages, 18 figures, matches MNRAS accepted version, some sections
reorganized but no major changes
Note: replaced with revised version Fri, 6 Oct 2006 21:32:16 GMT (168kb)
- astro-ph/0602424 [abs, ps, pdf, other] :
-
Title: Catalog Extraction in SZ Cluster Surveys: a matched filter approach
Authors:
J.-B. Melin,
J. G. Bartlett,
J. Delabrouille
Comments: 14 pages, 13 figures, replaced to match version accepted for
publication in A&A
Note: replaced with revised version Mon, 9 Oct 2006 09:24:39 GMT (420kb)
- astro-ph/0603300 [abs, ps, pdf, other] :
-
Title: A Toy Model for Magnetic Connection in Black-Hole Accretion Disc
Authors:
D. X. Wang,
Y. C. Ye,
Y. Li,
D.M. Liu
Comments: 11 pages, 9 figures
Note: replaced with revised version Mon, 9 Oct 2006 14:49:09 GMT (1178kb)
- astro-ph/0603353 [abs, ps, pdf, other] :
-
Title: Observational constraints on self-accelerating cosmology
Authors:
Roy Maartens,
Elisabetta Majerotto (Portsmouth)
Comments: matches published version - DGP is within joint 2 sigma contour using
WMAP3 (1 sigma with WMAP1)
Journal-ref: Phys.Rev. D74 (2006) 023004
Note: replaced with revised version Sat, 7 Oct 2006 12:13:40 GMT (355kb)
- astro-ph/0605016 [abs, ps, pdf, other] :
-
Title: The GRB early optical flashes from internal shocks: application to
GRB990123, GRB041219a and GRB060111b
Authors:
D.M. Wei (Purple Mountain Observatory)
Comments: 11 pages, minor revision, accepted by MNRAS
Note: replaced with revised version Sun, 8 Oct 2006 07:39:23 GMT (9kb)
- astro-ph/0605701 [abs, ps, pdf, other] :
-
Title: Observational constraints on phantom-like braneworld cosmologies
Authors:
Ruth Lazkoz,
Roy Maartens,
Elisabetta Majerotto
Comments: small improvements; matches the version to appear in Phys Rev D
Note: replaced with revised version Sat, 7 Oct 2006 11:21:55 GMT (561kb)
- astro-ph/0606506 [abs, ps, pdf, other] :
-
Title: Strong lensing probability for testing TeVeS theory
Authors:
Da-Ming Chen,
HongSheng Zhao
Comments: 4 pages, 2 figures, the title changed to match the published version
Journal-ref: Astrophys.J. 650 (2006) L9-L12
Note: replaced with revised version Mon, 9 Oct 2006 13:53:10 GMT (27kb)
- astro-ph/0606561 [abs, ps, pdf, other] :
-
Title: Chaotic motion and spiral structure in self-consistent models of
rotating galaxies
Authors:
N. Voglis (1),
I. Stavropoulos (1 and 2),
C. Kalapotharakos (1) ((1) Academy of Athens, Research Center for Astronomy, (2) University of Athens, Department of Physics, Section of Astrophysics)
Comments: 30 pages, 17 figures (low resolution). Revised version. Accepted for
publication in MNRAS. For high resolution figures please send email to
ckalapot@phys.uoa.gr
Note: replaced with revised version Mon, 9 Oct 2006 14:54:30 GMT (3830kb)
- astro-ph/0607160 [abs, ps, pdf, other] :
-
Title: Ellipticity in Cosmic Microwave Background as a Tracer of Large-Scale
Universe
Authors:
V.G.Gurzadyan,
C.L.Bianco,
A.L.Kashin,
H.Kuloghlian,
G.Yegorian
Comments: to appear in Phys. Lett. A
Note: replaced with revised version Mon, 9 Oct 2006 11:57:09 GMT (106kb)
- astro-ph/0607403 [abs, ps, pdf, other] :
-
Title: Coherent Active-Sterile Neutrino Flavor Transformation in the Early
Universe
Authors:
Chad T. Kishimoto,
George M. Fuller,
Christel J. Smith
Comments: 4 pages, 3 figures, matches version printed in PRL
Journal-ref: Phys. Rev. Lett. 97, 141301 (2006)
Note: replaced with revised version Sat, 7 Oct 2006 00:09:24 GMT (63kb)
- astro-ph/0607451 [abs, ps, pdf, other] :
-
Title: Critical properties and stability of stationary solutions in
multi-transonic pseudo-Schwarzschild accretion
Authors:
Soumini Chaudhury,
Arnab K. Ray,
Tapas Kumar Das
Comments: Final version to appear in MNRAS. 12 pages, one colour and 3 black
and white figures
Note: replaced with revised version Sat, 7 Oct 2006 07:49:14 GMT (342kb)
- astro-ph/0607521 [abs, ps, pdf, other] :
-
Title: Inverse Compton scattering on solar photons, heliospheric modulation,
and neutrino astrophysics
Authors:
Igor V. Moskalenko (Stanford),
Troy A. Porter (UCSC),
Seth W. Digel (SLAC)
Comments: 4 pages, 4 figures, emulateapj.cls, final version; ApJ Letters, in
press
Note: replaced with revised version Mon, 9 Oct 2006 01:48:32 GMT (116kb)
- astro-ph/0607555 [abs, ps, pdf, other] :
-
Title: The influence of baryons on the mass distribution of dark matter halos
Authors:
W.P. Lin,
Y.P. Jing (Shanghai Astronomical Observatory),
S.Mao (University of Manchester),
L. Gao,
I.G. McCarthy (Durham)
Comments: 8 pages, 6 figures, 1 table, ApJ in press (v652n1); updated to match
with the being published version
Note: replaced with revised version Mon, 9 Oct 2006 09:48:16 GMT (193kb)
- astro-ph/0609506 [abs, ps, pdf, other] :
-
Title: Measurement of the Spin-Orbit Alignment in the Exoplanetary System HD
189733
Authors:
Joshua N. Winn,
John A. Johnson,
Geoffrey W. Marcy,
R. Paul Butler,
Steven S. Vogt,
Gregory W. Henry,
Anna Roussanova,
Matthew J. Holman,
Keigo Enya,
Norio Narita,
Yasushi Suto,
Edwin L. Turner
Comments: Submitted to ApJ Letters [15 pages]
Note: replaced with revised version Sun, 8 Oct 2006 18:04:07 GMT (60kb)
- astro-ph/0609555 [abs, ps, pdf, other] :
-
Title: Characterization of Dusty Debris Disks: the IRAS and Hipparcos Catalogs
Authors:
Joseph H. Rhee,
Inseok Song,
B. Zuckerman,
Michael McElwain
Comments: Correction made to Equation 9 (v3); added a paragraph and a reference
to Section 3 (v2); accepted for publication in ApJ
Note: replaced with revised version Mon, 9 Oct 2006 04:20:46 GMT (455kb)
- astro-ph/0609617 [abs, ps, pdf, other] :
-
Title: Simulation of Cosmic Ray neutrinos Interactions in Water
Authors:
T. Sloan (University of Lancaster)
Comments: Talk presented on behalf of the ACoRNE Collaboration at the ARENA
Workshop 2006
Note: replaced with revised version Mon, 9 Oct 2006 14:46:12 GMT (88kb)
- astro-ph/0609688 [abs, ps, pdf, other] :
-
Title: WASP-1b and WASP-2b: Two new transiting exoplanets detected with
SuperWASP and SOPHIE
Authors:
A. Collier Cameron,
F. Bouchy,
G. Hebrard,
P. Maxted,
D. Pollacco,
F. Pont,
I. Skillen,
B. Smalley,
R. A. Street,
R.G. West,
D.M. Wilson,
S. Aigrain,
D.J. Christian,
W.I. Clarkson,
B. Enoch,
A. Evans,
A. Fitzsimmons,
M. Gillon,
C.A. Haswell,
L. Hebb,
C. Hellier,
S.T. Hodgkin,
K. Horne,
J. Irwin,
S.R. Kane,
F.P. Keenan,
B. Loeillet,
T.A. Lister,
M. Mayor,
C. Moutou,
A.J. Norton,
J. Osborne,
N. Parley,
D. Queloz,
R. Ryans,
A.H.M.J. Triaud,
S. Udry,
P.J. Wheatley
Comments: 5 pages, 3 figures, MNRAS (submitted); Table 1 updated to give small
improvements to WASP-2 RV measures following re-analysis
Note: replaced with revised version Sat, 7 Oct 2006 10:09:34 GMT (44kb)
- astro-ph/0610061 [abs, ps, pdf, other] :
-
Title: A New Survey for Giant Arcs
Authors:
Joseph F. Hennawi,
Michael D. Gladders,
Masamune Oguri,
Neal Dalal,
Benjamin Koester,
Priyamvada Natarajan,
Michael A. Strauss,
Naohisa Inada,
Issha Kayo,
Huan Lin,
Hubert Lampeitl,
James Annis,
Neta A. Bahcall,
Donald P. Schneider
Comments: 19 pages, 7 pages of Figures, submitted to AJ. Fixed Typos
Note: replaced with revised version Mon, 9 Oct 2006 13:17:48 GMT (9645kb)
- gr-qc/0606088 [abs, ps, pdf, other] :
-
Title: The search for continuous gravitational waves: metric of the
multi-detector F-statistic
Authors:
Reinhard Prix
Comments: 20 pages, 15 figures, revtex4; v2: some edits of style and notation,
fixed minor typos
Note: replaced with revised version Mon, 9 Oct 2006 16:44:29 GMT (654kb)
- hep-th/0603254 [abs, ps, pdf, other] :
-
Title: Black holes and dark energy from gravitational collapse on the brane
Authors:
László Á. Gergely
Comments: discussion on black hole formation added, many new references, 15
pages, 2 figures
Note: replaced with revised version Mon, 9 Oct 2006 17:26:35 GMT (51kb)
For subscribe options to combined physics archives,
e-mail To: physics@arXiv.org, Subject: subscribe
-----------------------------------------------------------------------------
For help on viewing and making submissions, see this http URL
For a list of archive mirror sites, see this http URL
-----------------------------------------------------------------------------
Third-party submissions cause excessive problems.
Author self-submissions are exceedingly preferred.
E-mail submissions have been discontinued in favor of better support for
Web submissions. See this http URL
Cross-listings
- gr-qc/0606091 [abs, ps, pdf, other] :
-
Title: Probing the cosmological singularity with a particle
Authors:
Przemyslaw Malkiewicz,
Wlodzimierz Piechocki
Comments: 19 pages, 7 figures, revtex4, added references, version accepted for
publication in Class. Quantum Grav
We examine the transition of a particle across the singularity of the
compactified Milne (CM) space. Quantization of the phase space of a particle
and testing the quantum stability of its dynamics are consistent to one
another. One type of transition of a quantum particle is described by a quantum
state that is continuous at the singularity. It indicates the existence of a
deterministic link between the propagation of a particle before and after
crossing the singularity. Regularization of the CM space leads to the dynamics
similar to the dynamics in the de Sitter space. The CM space is a promising
model to describe the cosmological singularity deserving further investigation
by making use of strings and membranes.
- hep-ph/0608299 [abs, ps, pdf, other] :
-
Title: A-term inflation and the MSSM
Authors:
J.C. Bueno Sanchez,
K. Dimopoulos,
David H. Lyth
Comments: 7 pages, 3 figures
The parameter space for A-term inflation is explored with $W=\lambda_p
\phi^p/(p M_P^{p-3})$. With p=6 and \lambda_p~1, the observed spectrum and
spectral tilt can be obtained with soft mass of order 10^2 GeV but not with a
much higher mass. The case p=3 requires \lambda_p~10^{-9} to 10^{-12}. The
ratio m/A requires fine-tuning, which may be justified on environmental
grounds. An extension of the MSSM to include non-renormalizable terms and/or
Dirac neutrino masses might support either A-term inflation or modular
inflation.
- hep-ph/0610017 [abs, ps, pdf, other] :
-
Title: Event rates for WIMP detection
Authors:
J.D. Vergados (Physics Department, University of Ioannina, Ioannina, Greece),
Ch. C. Moustakidis (Physics Department, Aristotle University of Thessaloniki, Greece),
V. Oikonomou (Physics Department, Aristotle University of Thessaloniki, Greece)
Comments: 8 LaTex pages, 5 figures, to appear in the proceedings of the
workshop dsu2006, Madrid June 20-24
The event rates for the direct detection of dark matter for various types of
WIMPs are presented. In addition to the neutralino of SUSY models, we
considered other candidates (exotic scalars as well as particles in
Kaluza-Klein and technicolour theories) with masses in the TeV region. Then one
finds reasonable branching ratios to excited states. Thus the detection of the
WIMP can be made not only by recoil measurements, but by measuring the
de-excitation $\gamma$-rays as well.
Replacements
- astro-ph/0407508 [abs, ps, pdf, other] :
-
Title: Primordial constraint on the spatial dependence of the Newton constant
Authors:
V. Boucher (1),
J.-M. Gerard (1),
P. Vandergheynst (2),
Y. Wiaux (2) ((1) Universite catholique de Louvain, Louvain-la-Neuve, Belgium, (2) Swiss Federal Institute of Technology, Lausanne, Switzerland)
Comments: 4 pages, REVTeX4. Changes include (a) corrections of typos and (b)
addition of references
Note: replaced with revised version Tue, 10 Oct 2006 12:16:49 GMT (8kb)
- astro-ph/0508514 [abs, ps, pdf, other] :
-
Title: Fast spin +-2 spherical harmonics transforms and application in
cosmology
Authors:
Y. Wiaux (1),
L. Jacques (2),
P. Vandergheynst (1) ((1) Swiss Federal Institute of Technology, Lausanne, Switzerland, (2) Universite catholique de Louvain, Louvain-la-Neuve, Belgium)
Comments: 27 pages, 4 figures. Changes include (a) a detailed description of
equi-angular pixelizations on the sphere, (b) an explicit analysis of the
algorithm numerical stability, (c) a numerical illustration in the context of
the CMB polarization analysis
Subj-class: Astrophysics; Mathematical Physics
Note: replaced with revised version Tue, 10 Oct 2006 11:40:39 GMT (1228kb)
- astro-ph/0509177 [abs, ps, pdf, other] :
-
Title: Dark energy, curvature, and cosmic coincidence
Authors:
Urbano Franca
Comments: 14 pages, 2 figures. Revised, references added, accepted for
publication in Physics Letters B. Final version matches published version
Journal-ref: Physics Letters B 641 (2006) 351-356
Note: replaced with revised version Tue, 10 Oct 2006 13:47:51 GMT (82kb)
- astro-ph/0605690 [abs, ps, pdf, other] :
-
Title: Reconstructing the dark energy equation of state with varying couplings
Authors:
P. P. Avelino (Porto U.),
C. J. A. P. Martins (Porto U. & Cambridge U., DAMTP),
N. J. Nunes (Minnesota U.),
K. A. Olive (Minnesota U.)
Comments: 7 pages, 5 figures. Version accepted for publication in PRD
Note: replaced with revised version Tue, 10 Oct 2006 15:11:32 GMT (83kb)
- astro-ph/0606559 [abs, ps, pdf, other] :
-
Title: Homotopy symmetry in the multiply connected twin paradox of special
relativity
Authors:
Boudewijn F. Roukema (1),
Stanislaw Bajtlik (2) ((1) Torun Centre for Astronomy, (2) CAMK)
Comments: 19 pages, 8 figures, submitted to Journal of Cosmology and
Astroparticle Physics (JCAP); v2: explanatory subsection 3.3 added
Note: replaced with revised version Tue, 10 Oct 2006 15:15:38 GMT (55kb)
- astro-ph/0606622 [abs, ps, pdf, other] :
-
Title: GaBoDS: The Garching-Bonn Deep Survey: VII. Probing galaxy bias using
weak gravitational lensing
Authors:
P. Simon,
M. Hetterscheidt,
M. Schirmer,
T. Erben,
P. Schneider,
C. Wolf,
K. Meisenheimer
Comments: 22 pages, 11 figures, LaTeX, accepted by A&A; estimates for the
uncertainties in the galaxy redshift distribution were added, new Section 4.4
on statistical errors in the galaxy bias calibration factors
Note: replaced with revised version Tue, 10 Oct 2006 14:25:17 GMT (187kb)
- astro-ph/0606638 [abs, ps, pdf, other] :
-
Title: Numerical Simulations of the Lyman-alpha forest - A comparison of
Gadget-2 and Enzo
Authors:
John A. Regan (1),
Martin G. Haehnelt (1),
Matteo Viel (1,2) (1 - IoA, Cambridge, 2 - INAF, Trieste)
Comments: 10 pages, 8 figures. Submitted to MNRAS
Note: replaced with revised version Tue, 10 Oct 2006 14:31:31 GMT (639kb)
- astro-ph/0607037 [abs, ps, pdf, other] :
-
Title: Constraints on a scale invariant power spectrum from superinflation in
LQC
Authors:
D. J. Mulryne,
N. J. Nunes
Comments: 9 pages. Version accepted for publication in PRD
Note: replaced with revised version Tue, 10 Oct 2006 14:59:34 GMT (17kb)
- astro-ph/0607331 [abs, ps, pdf, other] :
-
Title: The nature and evolution of the highly ionized near-zones in the
absorption spectra of z~6 quasars
Authors:
James S. Bolton (IoA),
Martin G. Haehnelt (IoA/UCSB)
Comments: 25 pages, 11 figures, accepted for publication in MNRAS
Note: replaced with revised version Tue, 10 Oct 2006 13:45:17 GMT (198kb)
- astro-ph/0607609 [abs, ps, pdf, other] :
-
Title: A Universal Decline Law of Classical Novae
Authors:
Izumi Hachisu (Univ. of Tokyo),
Mariko Kato (Keio Univ.)
Comments: To appear in ApJS, vol.167, 23 pages including 24 figures
Note: replaced with revised version Tue, 10 Oct 2006 18:53:25 GMT (378kb)
- astro-ph/0609242 [abs, ps, pdf, other] :
-
Title: Unravelling Temporal Variability in Saturn's Spiral Density Waves:
Results and Predictions
Authors:
Matthew S. Tiscareno,
Philip D. Nicholson,
Joseph A. Burns,
Matthew M. Hedman,
Carolyn C. Porco
Comments: 9 pages, 5 figures; In press at Astrophysical Journal Letters
Note: replaced with revised version Mon, 9 Oct 2006 22:11:32 GMT (447kb)
- astro-ph/0609712 [abs, ps, pdf, other] :
-
Title: Gravitational Faraday Rotation in Binary Pulsar Systems
Authors:
Matteo Luca Ruggiero,
Angelo Tartaglia
Comments: 6 pages, 3 figures, minor revision; to appear in MNRAS
Note: replaced with revised version Tue, 10 Oct 2006 10:39:24 GMT (73kb)
- astro-ph/0610092 [abs, ps, pdf, other] :
-
Title: Crossing the Phantom Divide: Theoretical Implications and Observational
Status
Authors:
S. Nesseris,
L. Perivolaropoulos
Comments: References added. 18 pages (revtex), 8 figures. The numerical
analysis files (Mathematica + Fortran) with instructions are available at
this http URL . The ppt file of a
relevant talk may be downloaded from
this http URL
Subj-class: Astrophysics; Mathematical Physics
Note: replaced with revised version Tue, 10 Oct 2006 17:28:05 GMT (590kb)
- astro-ph/0610152 [abs, ps, pdf, other] :
-
Title: A New Population of Planetary Nebulae Discovered in the Large Magellanic
Cloud (II): Complete PN Catalogue
Authors:
Warren A. Reid,
Quentin A. Parker
Comments: 32 pages, 15 figures. Accepted MNRAS
Note: replaced with revised version Mon, 9 Oct 2006 23:37:26 GMT (1158kb)
- astro-ph/0610206 [abs, ps, pdf, other] :
-
Title: Planetary nebulae as probes of the chemical impact of AGB stars
Authors:
Letizia Stanghellini
Comments: Invited review, "Why galaxies care about AGB stars", Vienna, August
7-11, 2006
Note: replaced with revised version Tue, 10 Oct 2006 18:06:45 GMT (44kb)
- astro-ph/0610243 [abs, ps, pdf, other] :
-
Title: Photometric and spectroscopic follow-up of optical counterparts of X-ray
sources in the RasTyc sample
Authors:
Antonio Frasca (1),
Patrick Guillout (2),
Rubens Freire-Ferrero (2),
Ettore Marilli (1),
Katia Biazzo (1) ((1) INAF-Osservatorio Astrofisico di Catania, (2) Observatoire Astronomique de Strasbourg)
Comments: 10 pages, 16 figures, Proceeding for the "JENAM 2004-The many scales
of the Universe", 13-17 September, Granada, Spain
Note: replaced with revised version Tue, 10 Oct 2006 15:36:48 GMT (181kb)
- astro-ph/0610254 [abs, ps, pdf, other] :
-
Title: A New Look at the Empirical Initial-Final Mass Relation
Authors:
Kurtis A. Williams (Univ. of Texas)
Comments: 6 pages, 2 figures, uses included style file, for publication in the
proceedings of the 15th European White Dwarf Workshop. Corrected version
fixes a typo that kept a reference from appearing properly
Note: replaced with revised version Tue, 10 Oct 2006 15:11:02 GMT (19kb)
- hep-ph/0605095 [abs, ps, pdf, other] :
-
Title: Scalar K pi form factor and light quark masses
Authors:
M. Jamin,
J.A. Oller,
A. Pich
Comments: 5 pages, 2 figures; comparison with lattice and global average added;
version to appear in Phys. Rev. D
Note: replaced with revised version Tue, 10 Oct 2006 06:33:27 GMT (35kb)
For subscribe options to combined physics archives,
e-mail To: physics@arXiv.org, Subject: subscribe
-----------------------------------------------------------------------------
For help on viewing and making submissions, see this http URL
For a list of archive mirror sites, see this http URL
-----------------------------------------------------------------------------
Third-party submissions cause excessive problems.
Author self-submissions are exceedingly preferred.
E-mail submissions have been discontinued in favor of better support for
Web submissions. See this http URL
Cross-listings
- gr-qc/0610047 [abs, ps, pdf, other] :
-
Title: Testing General Relativity with Atom Interferometry
Authors:
Savas Dimopoulos,
Peter W. Graham,
Jason M. Hogan,
Mark A. Kasevich
Comments: 4 pages, 1 figure
Subj-class: General Relativity and Quantum Cosmology; Atomic Physics
The unprecedented precision of atom interferometry will soon lead to
laboratory tests of general relativity to levels that will rival or exceed
those reached by astrophysical observations. We propose such an experiment that
will initially test the equivalence principle to 1 part in 10^15 (300 times
better than the current limit), and 1 part in 10^17 in the future. It will also
probe general relativistic effects--such as the non-linear three-graviton
coupling, the gravity of an atom's kinetic energy, and the falling of light--to
several decimals. Further, in contrast to astrophysical observations,
laboratory tests can isolate these effects via their different functional
dependence on experimental variables.
- hep-th/0610051 [abs, ps, pdf, other] :
-
Title: On cosmic natural selection
Authors:
Alexander Vilenkin
Comments: 4 pages, no figures
The rate of black hole formation can be increased by increasing the value of
the cosmological constant. This falsifies Smolin's conjecture that the values
of all constants of nature are adjusted to maximize black hole production.
- nucl-th/0610037 [abs, ps, pdf, other] :
-
Title: Microscopic three-body forces and kaon condensation in cold
neutrino-trapped matter
Authors:
A. Li (Institute of Modern Physics, Lanzhou, China),
G.F. Burgio (INFN Catania, Italy),
U. Lombardo (INFN-LNS Catania, Italy),
W. Zuo (Institute of Modern Physics, Lanzhou, China)
Comments: 9 pages, 7 figures, accepted in Phys. Rev. C
We investigate the composition and the equation of state of the kaon
condensed phase in neutrino-free and neutrino-trapped star matter within the
framework of the Brueckner-Hartree-Fock approach with three-body forces. We
find that neutrino trapping shifts the onset density of kaon condensation to a
larger baryon density, and reduces considerably the kaon abundance. As a
consequence, when kaons are allowed, the equation of state of neutrino-trapped
star matter becomes stiffer than the one of neutrino free matter. The effects
of different three-body forces are compared and discussed. Neutrino trapping
turns out to weaken the role played by the symmetry energy in determining the
composition of stellar matter, and thus reduces the difference between the
results obtained by using different three-body forces.
- physics/0610062 [abs, ps, pdf, other] :
-
Title: Graduate Program in Astrophysics in Split
Authors:
Davor Krajnovic
Comments: proceedings of IAU SpS5, Astronomy for the Developing world, eds. J.
Hearnshaw & P. Martinez
Subj-class: Physics Education
Beginning in autumn 2008 the first generation of astronomy master students
will start a 2 year course in Astrophysics offered by the Physics department of
the University of Split, Croatia
(this http URL). This unique master course in
South-Eastern Europe, following the Bologna convention and given by astronomers
from international institutions, offers a series of comprehensive lectures
designed to greatly enhance students' knowledge and skills in astrophysics, and
prepare them for a scientific career. An equally important aim of the course is
to recognise the areas in which astronomy and astrophysics can serve as a
national asset and to use them to prepare young people for real life
challenges, enabling graduates to enter the modern society as a skilled and
attractive work-force. In this contribution, I present an example of a
successful organisation of international astrophysics studies in a developing
country, which aims to become a leading graduate program in astrophysics in the
broader region. I will focus on the benefits of the project showing why and in
what way astronomy can be interesting for third world countries, what are the
benefits for the individual students, nation and region, but also research,
science and the astronomical community in general.
Replacements
- astro-ph/0509358 [abs, ps, pdf, other] :
-
Title: Mass Measurements of AGN from Multi-Lorentzian Models of X-ray
Variability. I. Sampling Effects in Theoretical Models of the rms^2-M_BH
Correlation
Authors:
Martin E. Pessah (1, 2) ((1) Astronomy Department, (2) Physics Department, University of Arizona)
Comments: The Astrophysical Journal, in press, 11 pages, 6 figures
Note: replaced with revised version Wed, 11 Oct 2006 15:29:58 GMT (196kb)
- astro-ph/0512167 [abs, ps, pdf, other] :
-
Title: The Beylkin-Cramer Summation Rule and A New Fast Algorithm of Cosmic
Statistics for Large Data Sets
Authors:
Long-long Feng (Purple Mountain Observatory, China)
Comments: 27 pages, 9 figures included. revised version, changes include (a)
adding a new fast algorithm for 2nd statistics (b) more numerical tests
including counts in asymmetric cells, the two-point correlation functions and
2nd variances (c) more discussions on technica
Note: replaced with revised version Wed, 11 Oct 2006 16:28:50 GMT (293kb)
- astro-ph/0603566 [abs, ps, pdf, other] :
-
Title: Consistency between deep crustal heating of strange stars in
superbursters and soft X-ray transients
Authors:
Morten Stejner,
Jes Madsen (University of Aarhus)
Comments: 12 pages, 6 figures. Changes include some references and
clarifications in the text, revised figures and an added discussion on
KS1731-260 and MXB1659-29. Final version published in A&A
Journal-ref: A&A 458, 523-532 (2006)
Note: replaced with revised version Wed, 11 Oct 2006 18:55:14 GMT (226kb)
- astro-ph/0603601 [abs, ps, pdf, other] :
-
Title: Early and Late Transient Cosmic Acceleration due to Curvature Inspired
Dark Energy
Authors:
S.K.Srivastava
Comments: 12 pages
Note: replaced with revised version Wed, 11 Oct 2006 06:03:33 GMT (8kb)
- astro-ph/0604095 [abs, ps, pdf, other] :
-
Title: Radio-Loudness of Active Galactic Nuclei: Observational Facts and
Theoretical Implications
Authors:
M. Sikora,
L. Stawarz,
J.-P. Lasota
Comments: 32 pages, 4 figures and 5 tables included. Modified version,
withdrawn from MNRAS because of unacceptable delays in obtaining a referee's
report, and submitted to ApJ
Note: replaced with revised version Wed, 11 Oct 2006 03:24:21 GMT (103kb)
- astro-ph/0606248 [abs, ps, pdf, other] :
-
Title: Effect on cosmic microwave background polarization of coupling of
quintessence to pseudoscalar formed from the electromagnetic field and its
dual
Authors:
Guo-Chin Liu,
Seokcheon Lee,
Kin-Wang Ng
Comments: 9 pages, 5 eps figures. references updated, version accepted by PRL
Note: replaced with revised version Wed, 11 Oct 2006 06:18:17 GMT (52kb)
- astro-ph/0606731 [abs, ps, pdf, other] :
-
Title: Towards observational constraints on negative (1+z)^4 type contribution
in the Friedmann equation
Authors:
Wlodzimierz Godlowski,
Marek Szydlowski
Comments: 10 pages, 2 figures, final PLB accepted version
Note: replaced with revised version Wed, 11 Oct 2006 17:00:42 GMT (90kb)
- astro-ph/0608268 [abs, ps, pdf, other] :
-
Title: The Enrichment History of Baryons in the Universe
Authors:
Romeel Davé,
Benjamin D. Oppenheimer (Arizona)
Comments: 10 pages, MNRAS accepted. Minor changes, Figure 1c fixed
Note: replaced with revised version Wed, 11 Oct 2006 11:26:09 GMT (171kb)
- astro-ph/0608377 [abs, ps, pdf, other] :
-
Title: Light Element Signatures of Sterile Neutrinos and Cosmological Lepton
Numbers
Authors:
Christel J. Smith,
George M. Fuller,
Chad T. Kishimoto,
Kevork N. Abazajian
Comments: 12 pages, 17 figures, matches version printed in PRD
Journal-ref: Phys. Rev. D 74, 085008 (2006)
Note: replaced with revised version Tue, 10 Oct 2006 20:46:32 GMT (48kb)
- astro-ph/0609593 [abs, ps, pdf, other] :
-
Title: A Cosmology Calculator for the World Wide Web
Authors:
Edward L. Wright (UCLA)
Comments: 8 pages with 1 included figure. Cosmology calculator available at
this http URL, light travel time converter
at this http URL and the advanced cosmology
calculator at this http URL Revised to fix a
typo, add a reference, and match the accepted version to be published in the
PASP
Note: replaced with revised version Tue, 10 Oct 2006 23:22:20 GMT (9kb)
- astro-ph/0610243 [abs, ps, pdf, other] :
-
Title: Photometric and spectroscopic follow-up of optical counterparts of X-ray
sources in the RasTyc sample
Authors:
Antonio Frasca (1),
Patrick Guillout (2),
Rubens Freire-Ferrero (2),
Ettore Marilli (1),
Katia Biazzo (1) ((1) INAF-Osservatorio Astrofisico di Catania, (2) Observatoire Astronomique de Strasbourg)
Comments: 10 pages, 16 figures, Proceeding for the "JENAM 2004-The many scales
of the Universe", 13-17 September, Granada, Spain
Note: replaced with revised version Wed, 11 Oct 2006 07:39:58 GMT (181kb)
- gr-qc/0608113 [abs, ps, pdf, other] :
-
Title: Challenging the paradigm of singularity excision in gravitational
collapse
Authors:
Luca Baiotti,
Luciano Rezzolla
Comments: 4 pages, 4 figures, accepted for publication on Phys. Rev. Lett
Journal-ref: Phys. Rev. Lett. 97 (2006) 141101
Note: replaced with revised version Wed, 11 Oct 2006 17:23:27 GMT (26kb)
- hep-ph/0610070 [abs, ps, pdf, other] :
-
Title: CPT-odd Leptogenesis
Authors:
Pavel A. Bolokhov,
Maxim Pospelov
Comments: 19 pages, 4 figures
Note: replaced with revised version Tue, 10 Oct 2006 20:14:13 GMT (27kb)
For subscribe options to combined physics archives,
e-mail To: physics@arXiv.org, Subject: subscribe
-----------------------------------------------------------------------------
For help on viewing and making submissions, see this http URL
For a list of archive mirror sites, see this http URL
-----------------------------------------------------------------------------
Third-party submissions cause excessive problems.
Author self-submissions are exceedingly preferred.
E-mail submissions have been discontinued in favor of better support for
Web submissions. See this http URL
Cross-listings
- gr-qc/0610049 [abs, ps, pdf, other] :
-
Title: Absolute Being vs Relative Becoming
Authors:
Joy Christian (Perimeter and Oxford)
Comments: 34 pages; To appear in Relativity and the Dimensionality of the World
(within the series Fundamental Theories of Physics), edited by V. Petkov
(Springer, NY 2007)
Contrary to our immediate and vivid sensation of past, present, and future as
continually shifting non-relational modalities, time remains as tenseless and
relational as space in all of the established theories of fundamental physics.
Here an empirically adequate generalized theory of the inertial structure is
discussed in which proper time is causally compelled to be tensed within both
spacetime and dynamics. This is accomplished by introducing the inverse of the
Planck time at the conjunction of special relativity and Hamiltonian mechanics,
which necessitates energies and momenta to be invariantly bounded from above,
and lengths and durations similarly bounded from below, by their respective
Planck scale values. The resulting theory abhors any form of preferred
structure, and yet captures the transience of now along timelike worldlines by
causally necessitating a genuinely becoming universe. This is quite unlike the
scenario in Minkowski spacetime, which is prone to a block universe
interpretation. The minute deviations from the special relativistic effects
such as dispersion relations and Doppler shifts predicted by the generalized
theory remain quadratically suppressed by the Planck energy, but may
nevertheless be testable in the near future, for example via observations of
oscillating flavor ratios of ultrahigh energy cosmic neutrinos, or of altering
pulse rates of extreme energy binary pulsars.
- hep-ph/0610116 [abs, ps, pdf, other] :
-
Title: Proton Decay in Teravolt Unification
Authors:
P.H. frampton
Comments: 4 pages latex
Model building based on abelian quiver gauge theories gives models which
resemble trinification, originally proposed with yottavolt unification.
However, unification occurs in the teravolt range so proton decay must be
completely excluded in the scalar sector. It is straightforward to accomplish
this by a discrete symmetry which is a generalized baryon number B. Unlike in
trinification, this is possible because quarks and leptons acquire masses from
relevant operators which appear in four-dimensional conformal symmetry
breaking.
- hep-ph/0610119 [abs, ps, pdf, other] :
-
Title: New Interpretation of the Observational Matter Asymmetry
Authors:
Rong-Gen Cai,
Tong Li,
Xue-Qian Li,
Xun Wang
Comments: 9 pages, 4 figures and 2 tables
Motivated by the AMS project, we assume that due to some reason which is not
known so far, after the Big Bang or inflation epoch, antimatter was repelled
onto one brane which is separated from our brane where all the observational
matter resides. We suppose that there is a potential barrier at the brane
boundary, which is similar to the surface tension for water membrane. The
barrier prevents the mater particles to enter the space between two branes and
jump from one brane to another. However, by the quantum tunnelling, a sizable
anti-matter flux may come to our brane and be observed by the
Alpha-Magnetic-Spectrometer (AMS). The matter and antimatter on the two branes
attract each other via gravitational force. Following literature we consider a
possibility that a scalar field existing in the space between the branes causes
a Casimir effect which results in a repulsive force against the gravitation. We
find that the Casimir force is much stronger than the gravitational force, as
long as the separation of the two branes is small, thus at early epoch after
the Big Bang, the two branes were closer and then have been separated by the
Casimir repulsive force from each other, and the trend will continue till the
separation is sufficiently large and then the gravitational force observed in
our four-space would obviously deviate from the Newton's universal
gravitational law. In this work by considering two possible models, i.e. the
naive flat space-time and Randall-Sundrum models and using the observational
data on the visible matter in our universe as inputs, we derive the antimatter
flux which comes to our detector in the non-relativistic approximation and make
a rough numerical estimate of possible numbers of anti-helium at AMS.
- hep-th/0609126 [abs, ps, pdf, other] :
-
Title: Conventional cosmology from multidimensional models
Authors:
A.I.Zhuk
Comments: 16 pages, LaTeX, 14th International Seminar on High Energy Physics
"QUARKS-2006" in St. Petersburg, references and footnotes added
We investigate a possibility for construction of the conventional Friedmann
cosmology for our observable Universe if underlying theory is multidimensional
Kaluza-Klein model endowed with a perfect fluid. We show that effective
Friedmann model obtained by dynamical compactification of the multidimensional
one is faced with too strong variations of the fundamental "constants". From
other hand, models with stable compactification of the internal space are free
from this problem and also result in conventional 4D cosmological behavior for
our Universe. We prove a no-go theorem which shows that stable compactification
of the internal spaces is possible only if equations of state in the external
and internal spaces are properly adjusted to each other. With a proper choice
of parameters (fine tuning), effective cosmological constant in this model
provides the late time acceleration of the Universe. The fine tuning problem is
resolved in the case of the internal spaces in the form of orbifolds with
branes in fixed points. However, in this case the effective potential is too
flat (mass gravexcitons is very small) to provide necessary constancy of the
effective fundamental "constants".
Replacements
- astro-ph/0507392 [abs, ps, pdf, other] :
-
Title: Probing The Dust-To-Gas Ratio of z > 0 Galaxies Through Gravitational
Lenses
Authors:
Xinyu Dai (1),
Christopher S. Kochanek (1),
George Chartas (2),
Smita Mathur (1) ((1) OSU, (2) PSU)
Comments: 14 pages, 4 figures, Accepted by ApJ
Journal-ref: Astrophys.J. 637 (2006) 53-57
Note: replaced with revised version Thu, 12 Oct 2006 17:12:20 GMT (53kb)
- astro-ph/0511320 [abs, ps, pdf, other] :
-
Title: Radio Spectra of three Supernova Remnants: G114.3+0.3, G116.5+1.1 and
G116.9+0.2
Authors:
W.W. Tian,
D. Leahy
Comments: 10 pages, 4 figures, 6 tables
Journal-ref: ChJAA, 2006, Vol.6, p543
Note: replaced with revised version Thu, 12 Oct 2006 16:11:01 GMT (534kb)
- astro-ph/0604569 [abs, ps, pdf, other] :
-
Title: Curvature perturbation from symmetry breaking the end of inflation
Authors:
Laila Alabidi,
David Lyth
Comments: 4 pages, 4 figures
Journal-ref: JCAP 0608 (2006) 006
Note: replaced with revised version Thu, 12 Oct 2006 17:04:07 GMT (347kb)
- astro-ph/0605684 [abs, ps, pdf, other] :
-
Title: Gauss-Bonnet braneworld and WMAP three year results
Authors:
Brian M. Murray,
Yun Soo Myung
Comments: 14 pages, 7 figures, 2 tables, and version to appear in PLB
Note: replaced with revised version Thu, 12 Oct 2006 00:59:39 GMT (29kb)
- astro-ph/0606002 [abs, ps, pdf, other] :
-
Title: The X-ray Properties of Optically-Selected Galaxy Clusters
Authors:
Xinyu Dai,
Christopher S. Kochanek,
Nicholas D. Morgan (The Ohio State University)
Comments: 34 pages, 14 figures, Accepted by ApJ
Note: replaced with revised version Thu, 12 Oct 2006 17:24:34 GMT (306kb)
- astro-ph/0606420 [abs, ps, pdf, other] :
-
Title: The Anisotropy in the Galaxy Velocity Field Originated from the
Gravitational Pancaking Effect
Authors:
Yookyung Noh,
Jounghun Lee (Seoul Nat'l Univ.)
Comments: accepted by ApJL, new analyses included, discussions improved
Note: replaced with revised version Wed, 11 Oct 2006 22:04:13 GMT (67kb)
- astro-ph/0608279 [abs, ps, pdf, other] :
-
Title: On the extrasolar multi-planet system around HD160691
Authors:
Krzysztof Gozdziewski,
Andrzej J. Maciejewski,
Cezary Migaszewski
Comments: 15 pages (total), 11 figures, 2 tables, revised manuscript submitted
to ApJ; the manuscript with full-resolution figures is available from
this http URL
Note: replaced with revised version Thu, 12 Oct 2006 14:37:35 GMT (650kb)
- astro-ph/0609003 [abs, ps, pdf, other] :
-
Title: Slow Roll Reconstruction: Constraints on Inflation from the 3 Year WMAP
Dataset
Authors:
Hiranya Peiris (KICP/EFI, U. Chicago),
Richard Easther (Yale)
Comments: 26 pages, 11 figures, JHEP format. v2: version accepted by JCAP:
minor clarifications and references added, 1 figure added, v3: 1 reference
added
Note: replaced with revised version Thu, 12 Oct 2006 16:01:42 GMT (400kb)
- astro-ph/0609804 [abs, ps, pdf, other] :
-
Title: On SN 2003fg: The Probable Super-Chandrasekhar-Mass SN Ia
Authors:
David J. Jeffery,
David Branch,
E. Baron
Comments: 48 pages, 2 figures, submitted to the Astrophysical Journal
Note: replaced with revised version Thu, 12 Oct 2006 18:21:12 GMT (92kb)
- astro-ph/0610270 [abs, ps, pdf, other] :
-
Title: Unveiling the X-ray/TeV engine in Mkn 421
Authors:
Berrie Giebels,
Guillaume Dubus,
Bruno Khelifi
Comments: Accepted in A&A, 16 pages, 14 figures
Note: replaced with revised version Thu, 12 Oct 2006 09:46:07 GMT (223kb)
- gr-qc/0609055 [abs, ps, pdf, other] :
-
Title: Is there a black hole minimum mass?
Authors:
Tomohiro Harada
Comments: 4 pages, accepted for publication in Physical Review D, minor
correction
Journal-ref: Phys. Rev. D 74, 084004 (2006)
Note: replaced with revised version Thu, 12 Oct 2006 01:19:36 GMT (7kb)
- hep-th/0608168 [abs, ps, pdf, other] :
-
Title: On the way from matter-dominated era to dark energy universe
Authors:
Shin'ichi Nojiri,
Sergei D. Odintsov,
Hrvoje Stefancic
Comments: LaTeX 12 pages, 1 figure, extended version to appear in PRD
Note: replaced with revised version Thu, 12 Oct 2006 10:58:28 GMT (19kb)
- hep-th/0609193 [abs, ps, pdf, other] :
-
Title: A measure of the multiverse
Authors:
Alexander Vilenkin
Comments: 13 pages, 1 figure. Discussion of eternal observers is slightly
expanded
Note: replaced with revised version Wed, 11 Oct 2006 21:15:46 GMT (22kb)
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