CO2

Cross sections

Cross section figure.


[An explanation of the cross sections in this database]
[All cross sections — variable wavelength scale]
[All cross sections — variable wavelength scale in binary hdf5 format]
[All cross sections — 0.1nm wavelength scale]
[Photodissociation cross section — separate lines and continuum]
[Photoionisation cross section — separate lines and continuum]
[Download cross section figure as pdf]

Photodissociation and ionisation rates (s-1)

Radiation Photodissociation Photoionisation
ISRF 1.02e-09 0.00e+00
Mathis 7.79e-10 0.00e+00
4000K 2.37e-12 0.00e+00
10000K 1.14e-10 0.00e+00
20000K 8.99e-10 0.00e+00
Lyman-alpha 1.03e-11 0.00e+00
Solar 2.17e-11 6.52e-12
TW-Hya 2.15e-10 2.57e-11
Cosmic ray UV 6.56e-14 1.32e-15

[An explanation of the interstellar photo rates.]
[An explanation of the cosmic-ray induced photo rates.]
[An explanation of the radiation fields listed below.]
[Download all rates in a csv file.]

Shielding functions and fitted constants

Photodissociation

Radiation γE2 γexp k0fit γfit Line data Dust data
ISRF 2.52 3.44 0.44 3.03 [Download] [Download]
Mathis 2.56 3.49 0.43 3.08 [Download] [Download]
4000K 1.58 2.31 0.62 2.08 [Download] [Download]
10000K 2.11 2.99 0.44 2.58 [Download] [Download]
20000K 2.54 3.47 0.42 3.04 [Download] [Download]
Lyman-alpha 2.11 2.97 0.58 2.70 [Download] [Download]
Solar 2.35 3.27 0.34 2.73 [Download] [Download]
TW-Hya 2.43 3.35 0.39 2.88 [Download] [Download]

Photoionisation

Radiation γE2 γexp k0fit γfit Line data Dust data
ISRF - - - -
Mathis - - - -
4000K - - - -
10000K - - - -
20000K - - - -
Lyman-alpha - - - -
Solar 3.38 4.50 0.49 4.15 [Download] [Download]
TW-Hya 3.44 4.57 0.48 4.21 [Download] [Download]

[An explanation of the shielding functions and parameterisations.]
[Download all γ factors in a csv file.]
[Download all dust and line shielding functions in a zip file.]