OH

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	4.26e-10	1.59e-11
Mathis	2.86e-10	1.86e-11
4000K	2.14e-10	1.50e-17
10000K	2.27e-10	8.23e-13
20000K	3.75e-10	1.65e-11
Lyman-alpha	7.20e-10	0.00e+00
Solar	1.92e-10	2.87e-12
TW-Hya	5.68e-10	1.01e-11
Cosmic ray UV	5.34e-14	1.65e-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	1.83	2.66	0.50	2.31	[Download]	[Download]
Mathis	1.84	2.67	0.50	2.33	[Download]	[Download]
4000K	1.33	1.97	0.69	1.78	[Download]	[Download]
10000K	1.60	2.35	0.60	2.09	[Download]	[Download]
20000K	1.78	2.59	0.52	2.26	[Download]	[Download]
Lyman-alpha	2.11	2.97	0.58	2.70	[Download]	[Download]
Solar	1.37	2.04	0.65	1.82	[Download]	[Download]
TW-Hya	1.91	2.74	0.54	2.44	[Download]	[Download]

Photoionisation

Radiation	γE2	γexp	k0fit	γfit	Line data	Dust data
ISRF	3.21	4.30	0.51	3.97	[Download]	[Download]
Mathis	3.21	4.31	0.51	3.97	[Download]	[Download]
4000K	3.19	4.28	0.51	3.95	[Download]	[Download]
10000K	3.20	4.29	0.51	3.96	[Download]	[Download]
20000K	3.20	4.29	0.51	3.96	[Download]	[Download]
Lyman-alpha	-	-	-	-
Solar	3.30	4.41	0.50	4.07	[Download]	[Download]
TW-Hya	3.28	4.38	0.50	4.04	[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.]