C2H

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]
[Download cross section figure as pdf]

Photodissociation and ionisation rates (s-1)

Radiation Photodissociation Photoionisation
ISRF 1.58e-09
Mathis 1.04e-09
4000K 4.42e-11
10000K 6.76e-10
20000K 1.34e-09
Lyman-alpha 5.08e-10
Solar 6.44e-11
TW-Hya 8.34e-10
Cosmic ray UV 1.11e-13

[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 1.85 2.67 0.57 2.38 [Download] [Download]
Mathis 1.86 2.67 0.57 2.39 [Download] [Download]
4000K 1.60 2.33 0.62 2.09 [Download] [Download]
10000K 1.74 2.52 0.58 2.25 [Download] [Download]
20000K 1.83 2.64 0.57 2.35 [Download] [Download]
Lyman-alpha 2.11 2.97 0.58 2.70 [Download] [Download]
Solar 1.76 2.55 0.56 2.27 [Download] [Download]
TW-Hya 1.94 2.77 0.56 2.48 [Download] [Download]

Photoionisation

Radiation γE2 γexp k0fit γfit Line data Dust data
ISRF - - - -
Mathis - - - -
4000K - - - -
10000K - - - -
20000K - - - -
Lyman-alpha - - - -
Solar - - - -
TW-Hya - - - -

[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.]