CN

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 5.19e-10 0.00e+00
Mathis 4.25e-10 0.00e+00
4000K 2.33e-14 0.00e+00
10000K 5.11e-11 0.00e+00
20000K 4.53e-10 0.00e+00
Lyman-alpha 2.04e-11 0.00e+00
Solar 1.65e-11 2.03e-12
TW-Hya 1.26e-10 5.88e-12
Cosmic ray UV 4.51e-14 8.31e-16

[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 2.55 3.50 0.51 3.16 [Download] [Download]
Mathis 2.60 3.56 0.49 3.20 [Download] [Download]
4000K 2.38 3.30 0.56 3.01 [Download] [Download]
10000K 2.49 3.42 0.53 3.10 [Download] [Download]
20000K 2.60 3.55 0.49 3.20 [Download] [Download]
Lyman-alpha 2.11 2.97 0.58 2.70 [Download] [Download]
Solar 2.83 3.79 0.41 3.35 [Download] [Download]
TW-Hya 2.56 3.50 0.46 3.11 [Download] [Download]

Photoionisation

Radiation γE2 γexp k0fit γfit Line data Dust data
ISRF - - - -
Mathis - - - -
4000K - - - -
10000K - - - -
20000K - - - -
Lyman-alpha - - - -
Solar 3.34 4.46 0.50 4.12 [Download] [Download]
TW-Hya 3.34 4.46 0.50 4.12 [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.]