HO₂

Cross sections

[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	6.69e-10	8.39e-11
Mathis	4.43e-10	6.51e-11
4000K	1.79e-08	7.88e-16
10000K	2.02e-09	6.35e-12
20000K	7.93e-10	7.73e-11
Lyman-alpha	7.87e-12	0.00e+00
Solar	2.20e-08	1.51e-12
TW-Hya	4.83e-10	1.85e-11
Cosmic ray UV	1.89e-14	5.58e-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	1.69	2.46	0.59	2.20	[Download]	[Download]
Mathis	1.70	2.46	0.59	2.20	[Download]	[Download]
4000K	1.56	2.29	0.64	2.07	[Download]	[Download]
10000K	1.65	2.40	0.63	2.17	[Download]	[Download]
20000K	1.68	2.44	0.60	2.19	[Download]	[Download]
Lyman-alpha	2.11	2.97	0.58	2.70	[Download]	[Download]
Solar	1.61	2.35	0.62	2.12	[Download]	[Download]
TW-Hya	1.65	2.40	0.62	2.17	[Download]	[Download]

Photoionisation

Radiation	γE2	γexp	k0fit	γfit	Line data	Dust data
ISRF	2.92	3.94	0.50	3.60	[Download]	[Download]
Mathis	2.94	3.96	0.50	3.62	[Download]	[Download]
4000K	2.74	3.73	0.52	3.41	[Download]	[Download]
10000K	2.89	3.90	0.50	3.56	[Download]	[Download]
20000K	2.95	3.97	0.50	3.63	[Download]	[Download]
Lyman-alpha	-	-	-	-
Solar	2.97	4.01	0.51	3.67	[Download]	[Download]
TW-Hya	2.94	3.97	0.51	3.63	[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.]