Catherine Walsh

Publications

2019

  • Comparing protoplanetary midplane chemical evolution with cometary compositions

    • Eistrup, C., Walsh, C., & van Dishoeck, E. F. 2019, A&A, submitted

  • Discovery of an au-scale excess in millimeter emission from the protoplanetary disk around TW Hya

    • Tsukagoshi, T., Muto, T., Nomura, N., et al. 2019, under review

  • VLA cm-wave survey of young stellar objects in the Oph A cluster: constraining extreme UV- and X-ray-driven disk photo-evaporation. A pathfinder for Square Kilometre Array studies

    • Coutens, A., Liu, H. B., Jimenéz-Serra, I., et al. 2019, A&A, under review

  • Molecular emission tracing dust depleted rings: first detections of H13CO+ and HC15N in the HD97048 protoplanetary disk

    • Booth, A. S. & Walsh, C. 2019, A&A, under review

  • Abundant refractory sulphur in protoplanetary disks

    • Kama, M., Shorttle, O., Jermyn, A. K., et al. 2019, Nature Astronomy, under review

  • Dust continuum emission and the upper limit fluxes of sub-millimeter water lines of the protoplanetary disk around HD 163296 observed by ALMA

    • Notsu, S, Akiyama, E., Booth, A., et al. 2019, ApJ, 875, 96

  • The nitrogen carrier in inner planet-forming disks

    • Pontoppidan, K. M., Salyk, C., Banzatti, A., et al. 2019, ApJ, 874, 92

  • Upper limits on CH3OH in the HD 163296 protoplanetary disk: evidence for a low gas-phase CH3OH/H2CO ratio

    • Carney, M. T., Hogerheijde, M. R., Guzman, V. V., et al. 2019, A&A, 623, 124

  • The effect of carbon grain destruction on the chemical structure of protoplanetary disks

    • Wei, C.-E., Nomura, H., Lee, J.-E., et al. 2019, ApJ, 870, 129

  • Formation of cometary O2 ice and related ice species on grain surfaces in the midplane of the pre-Solar nebula

    • Eistrup, C. & Walsh, C. 2019, A&A, 621, A75

  • Observing substructure in circumstellar discs around massive young stellar objects

    • Jankovic, M., Haworth, T., Ilee, J., et al. 2019, MNRAS, 482, 4673

    2018

  • CO destruction in protoplanetary disk midplanes: inside versus outside the CO snow surface

    • Bosman, A. D, Walsh, C., & van Dishoeck, E. F. 2018, A&A, 618, A182

  • Linking interstellar and cometary O2: a deep search for 16O18O in the solar-type protostar IRAS 16293+2422

    • Taquet, V., van Dishoeck, E. F., Swayne, M., et al. 2018, A&A, 618, A11

  • Complex cyanides as chemical clocks in hot cores

    • Allen, V., van der Tak, F. F. S., & Walsh, C. 2018, A&A, 616, A67

  • Probing midplane CO abundance and gas temperature with DCO+ in the protoplanetary disk around HD 169142

    • Carney, M. T., Fedele, D., Hogerheijde, M. R., et al. 2018, A&A, 614, A106

  • The distribution and excitation of CH3CN in a solar nebula analog

    • Loomis, R. A., Cleeves, L. I., Öberg, K. I., et al. 2018, ApJ, 859, 131

  • Molecular abundances and C/O ratios in chemically evolving planet-forming disk midplanes

    • Eistrup, C., Walsh, C., & van Dishoeck, E. F. 2018, A&A, 613, A14

  • Methanol ice co-desorption as a mechanism to explain cold methanol in the gas-phase

    • Ligterink, N. F. W., Walsh, C., Bhuin, R. G., et al. 2018, A&A, 612, A88

  • Detecting weak spectral lines in interferometric data through matched filtering

    • Loomis, R. A., Öberg, K. I., Andrews, S. M., et al. 2018, AJ, 155, 182

  • Sulphur monoxide exposes a potential molecular disk wind from the planet-hosting disk around HD 100546

    • Booth, A., Walsh, C., Kama, M., et al. 2018, A&A, 611, A16

  • A UV-NIR study of molecular gas in the transitional disk around RY Lupi

    • Arulanantham, N., France, K., Hoadley, K., et al. 2018, ApJ, 855, 98

  • Candidate water vapor lines to locate the H2O snowline through high-dispersion spectroscopic observations. III: Sub-millimeter H216O and H218O lines

    • Notsu, S., Nomura, H., Walsh, C., et al. 2018, ApJ, 855, 62

  • Probing episodic accretion in very low luminosity objects

    • Hsieh, T.-H., Murillo, N. M., Belloche, A., et al. 2018, ApJ, 854, 15

    2017

  • Formation of methanol in TW Hya and future prospects for detecting larger complex molecules in disks with ALMA

    • Walsh, C., Vissapragada, S., & McGee, H. 2017, IAU, S332, in press

  • CO emission tracing a warp or radial flow within ~ 100 au in the HD 100546 protoplanetary disk

    • Walsh, C., Daley, C., Facchini, S., & Juhász, A. 2017, A&A, 607, A114

  • Sensitivity analysis of grain surface chemistry to binding energies of ice species

    • Penteado, E., Walsh, C., & Cuppen, H. 2017, ApJ, 844, 71

  • ALMA unveils rings and gaps in the protoplanetary system HD 169142

    • Fedele, D., Carney, M., Hogerheijde, M. R., et al. 2017, A&A, 600, A72

  • Robustness of N2H+ as tracer of the CO snowline

    • van 't Hoff, M. R., Walsh, C., Kama, M., Facchini, S., & van Dishoeck, E. F. 2017, A&A, 599, A101

  • Negative ions in space

    • Millar, T. J., Walsh, C., & Field, T. 2017, Chem. Rev., 117, 1765

  • Grain surface models and data for astrochemistry

    • Cuppen, H. M, Walsh, C., Lamberts, T., et al. 2017, Space Sci. Rev., 212, 1

  • Candidate water vapor lines to locate the H2O snowline through high-dispersion spectroscopic observations II: the case of a Herbig Ae star

    • Notsu, S., Nomura, H., Ishimoto, D., et al. 2017, ApJ, 836, 118

  • Complex organic molecules tracing shocks along the outflow cavity in the high-mass protostar IRAS 20126+4104

    • Palau, A., Walsh, C., Sánchez-Monge, Á., et al. 2017, MNRAS, 467, 2723

  • Water delivery from cores to disks: deuteration as a probe of the prestellar inheritance of H2O

    • Furuya, K., Drozdovskaya, M. N., Visser, R., et al. 2017, A&A, 599, A40

    2016

  • ALMA reveals the anatomy of the mm-sized dust and molecular gas in the HD 97048 disk

    • Walsh, C., Juhász, A., Meeus, G., et al. 2016, ApJ, 831, 200

  • First detection of gas-phase methanol in a protoplanetary disk

    • Walsh, C., Loomis, R. A., Öberg, K. I., et al. 2016, ApJL, 823, L10

  • Chemical complexity in protoplanetary disks in the era of ALMA and Rosetta

    • Walsh, C. 2016, EAS, 75-76, 315

  • Setting the volatile composition of (exo)planet-building material: does chemical evolution in disk midplanes matter?

    • Eistrup, C., Walsh, C., & van Dishoeck, E. F. 2016, A&A, 595, A83

  • A primordial origin for molecular oxygen in comets: a chemical kinetics study of the formation and survival of O2 from clouds to disks

    • Taquet, V., Furuya, K., Walsh, C., & van Dishoeck, E. F. 2016, MNRAS, 462, S99

  • A gap with a deficit of large grains in the protoplanetary disk around TW Hya

    • Tsukagoshi, T., Nomura, H., Muto, T., et al. 2016, ApJL, 829, L35

  • Cometary ices in forming protoplanetary disc midplanes

    • Drozdovskaya, M. N., Walsh, C., van Dishoeck, E. F., et al. 2016, MNRAS, 462, 977

  • ALMA-resolved salt emission traces the chemical footprint and inner wind morphology of VY CMa

    • Decin, L., Richards, A. M. S., Millar, T. J., et al. 2016, A&A, 592, A76

  • Candidate water vapour lines to locate the H2O snowline through high-dispersion spectroscopic observations I: the case of a T Tauri star

    • Notsu, S., Nomura, H., Ishimoto, D., et al. 2016, ApJ, 827, 113

  • ALMA observations of a gap and a ring in the protoplanetary disk around TW Hya

    • Nomura, H., Tsukagoshi, T., Kawabe, R., et al. 2016, ApJL, 819, L7

  • The chemistry and distribution of daughter species in the circumstellar envelopes of O-rich AGB stars

    • Li, X., Heays, A., Millar, T. J., et al. 2016, A&A, 588, A4

    2015

  • The molecular composition of the planet-forming regions of protoplanetary disks across the luminosity regime

    • Walsh, C., Nomura, H., & van Dishoeck, E. F. 2015, A&A, 582, A88

  • Abundant molecular oxygen in the coma of comet 67P/Churyumov-Gerasimenko

    • Bieler, A., Altwegg, K., Balsiger, H., et al. 2015, Nature, 526, 678

  • Resolving structure of the disk around HD 100546 at 7 mm with ATCA

    • Wright, C. M., Madison, S. T., Wilner, D. J., et al. 2015, MNRAS, 453, 414

  • The complex chemistry of outflow cavity walls exposed: the case of low-mass protostars

    • Drozdovskaya, M., Walsh, C., Visser, R., et al. 2015, MNRAS, 451, 3836

  • Sequential planet formation in the HD 100546 protoplanetary disk?

    • Pinilla, P., Birnstiel, T., & Walsh, C. 2015, A&A, 580, A105

  • A low-mass protostar's disk-envelope interface: disk-shadowing evidence from ALMA DCO+ observations of VLA1623

    • Murillo, N., Bruderer, S., van Dishoeck, E. F., et al. 2015, A&A, 579, A114

  • Photodesorption of H2O, HDO, and D2O ice and its impact on fractionation

    • Arasa, C., Koning, J., Kroes, G.-J., Walsh, C., & van Dishoeck, E. F. 2015, A&A, 575, A121

    2014

  • Complex organic molecules along the accretion flow in isolated and externally irradiated protoplanetary disks

    • Walsh, C., Herbst, E., Nomura, H., Millar, T. J., & Widicus Weaver, S. 2014, Faraday Discussions, 168, 389

  • Complex organic molecules in protoplanetary disks

    • Walsh, C., Millar, T. J., Nomura, H., et al. 2014, A&A, 563, A33

  • ALMA hints at the presence of two companions in the disk around HD 100546

    • Walsh, C., Juhász, A., Pinilla, P., et al. 2014, ApJL, 791, L6

  • Methanol along the path from envelope to protoplanetary disc

    • Drozdovskaya, M. N., Walsh, C., Visser, R., Harsono, D., van Dishoeck, E. F. 2014, MNRAS, 445, 913

  • Highlights from Faraday Discussion 168: Astrochemistry of Dust, Ice and Gas

    • Thrower, J. D., Ioppolo, S., & Walsh, C. 2014, Chem. Commun., 50, 13636

  • Water in low-mass star-forming regions with Herschel. The link between water gas and ice in protostellar envelopes

    • Schmalzl, M., Visser, R., Walsh, C., et al. 2014, A&A, 572, A81

  • Photodissociation and chemistry of N2 in the circumstellar envelope of carbon-rich AGB stars

    • Li, X., Millar, T. J., Walsh, C., Heays, A. N.; van Dishoeck, E. F. 2014, A&A, 568, A111

  • An end-to-end Far-infrared Interferometer Instrument Simulator (FIInS)

    • Juanola-Parramon, R., Savini, G., Fenech, D., & Walsh, C., 2014, SPIE, 9143

  • Water in protoplanetary disks

    • Nomura, H., Walsh, C., Heinzeller, D., & Millar, T. J. 2014, IAU, 293, 235

  • Cosmic rays, UV photons, and haze formation in the upper atmospheres of hot Jupiters

    • Rimmer, P., Walsh, C., & Helling, C. 2014, IAU, 299, 303

    2013

  • Molecular line emission from a protoplanetary disk irradiated externally by a nearby massive star

    • Walsh, C., Millar, T. J., & Nomura, H. 2013, ApJL, 766, L23

  • The UMIST database for astrochemistry 2012

    • McElroy, D., Walsh, C., Markwick, A. J., et al. 2013, A&A, 550, A36

  • Diagnosing gas dispersal processes in protoplanetary disks

    • Nomura, H., Walsh, C., Millar, T. J., & Aikawa, Y. 2013, ASPC, 476, 209

  • The influence of disk winds on chemical evolution of protoplanetary disks

    • Ishimoto, D., Nomura, H., Heinzeller, D., et al. 2013, ASPC, 476, 393

    2012

  • Chemical processes in protoplanetary disks. II. On the importance of photochemistry and X-ray ionization

    • Walsh, C., Nomura, H., Millar, T. J., & Aikawa, Y. 2012, ApJ, 747, 114

  • The chemistry of extragalactic carbon stars

    • Woods, P. M., Walsh, C., Cordiner, M. A., & Kemper, F. 2012, MNRAS, 426, 2689

  • Hot core chemistry in young stellar objects: protoplanetary disks and outflows

    • Nomura, H., Walsh, C., Heinzeller, D., & Millar, T. J. 2012, EAS, 52, 229

    2011

  • Chemical evolution of protoplanetary disks - the effects of viscous accretion, turbulent mixing, and disk winds

    • Heinzeller, D., Nomura, H., Walsh, C., & Millar, T. J. 2011, ApJ, 731, 115

  • Discovery of interstellar anions in Cepheus and Auriga

    • Cordiner, M. A., Charnley, S. B., Buckle, J. V., Walsh, C., & Millar, T. J. 2011, ApJL, 730, L18

    2010

  • Chemical processes in protoplanetary disks

    • Walsh, C., Millar, T. J., & Nomura, H. 2010, ApJ, 722, 1607

  • Dissociative recombination of protonated formic acid: implications for molecular cloud and cometary chemistry

    • Vigren, E., Hamberg, M., Zhaunerchyk, V. et al. 2010, ApJ, 709, 1429

  • CH abundance gradient in TMC-1

    • Suutarinen, A., Geppert, W. D., Harju, J., et al. 2011, A&A, 531, A121

  • Dissociative recombination of the acetaldehyde cation, CH3CHO+

    • Vigren, E., Hamburg, M., Zhaunerchyk, V., et al. 2010, PCCP, 12, 11670

    2009

  • The effects of molecular anions on the chemistry of dark clouds

    • Walsh, C., Harada, N., Herbst, E., & Millar, T. J. 2009, ApJ, 700, 752

  • The dissociative recombination of protonated acrylonitrile, CH2CHCNH+, with implications for the nitrile chemistry in dark molecular clouds and the upper atmosphere of Titan

    • Vigren, E., Hamberg, M., Zhaunerchyk, V., et al. 2009, ApJ, 695, 317

    2008

  • Dissociative recombination of D3S+: product branching fractions and absolute cross sections

    • Kaminska, M., Vigren, E., Zhaunerchyk, V., et al. 2008, ApJ, 681, 1717

  • Organic molecular anions in interstellar and circumstellar environments

    • Cordiner, M. A., Millar, T. J., Walsh, C., et al. 2008, IAU, 251, 157

    2007

  • Hydrocarbon anions in interstellar clouds and circumstellar envelopes

    • Millar, T. J., Walsh, C., Cordiner, M. A., Ní Chuimín, R., & Herbst, E. 2007, ApJL, 662, L87