H2O2

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 8.08e-10 2.48e-10
Mathis 5.34e-10 2.02e-10
4000K 2.41e-09 3.20e-15
10000K 5.51e-10 1.89e-11
20000K 7.16e-10 2.37e-10
Lyman-alpha 1.52e-09 0.00e+00
Solar 2.90e-09 1.19e-11
TW-Hya 1.13e-09 7.67e-11
Cosmic ray UV 8.28e-14 1.85e-14

[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 1.80 2.60 0.56 2.31 [Download] [Download]
Mathis 1.81 2.61 0.56 2.32 [Download] [Download]
4000K 1.27 1.96 0.64 1.73 [Download] [Download]
10000K 1.62 2.38 0.60 2.12 [Download] [Download]
20000K 1.77 2.56 0.56 2.28 [Download] [Download]
Lyman-alpha 2.11 2.97 0.58 2.70 [Download] [Download]
Solar 1.27 1.97 0.62 1.73 [Download] [Download]
TW-Hya 1.95 2.79 0.55 2.49 [Download] [Download]

Photoionisation

Radiation γE2 γexp k0fit γfit Line data Dust data
ISRF 2.88 3.88 0.48 3.52 [Download] [Download]
Mathis 2.92 3.92 0.48 3.55 [Download] [Download]
4000K 2.53 3.47 0.52 3.15 [Download] [Download]
10000K 2.81 3.80 0.48 3.43 [Download] [Download]
20000K 2.93 3.94 0.48 3.57 [Download] [Download]
Lyman-alpha - - - -
Solar 3.18 4.23 0.47 3.86 [Download] [Download]
TW-Hya 3.03 4.05 0.47 3.68 [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.]