OCS

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	4.67e-09	7.67e-10
Mathis	3.06e-09	6.06e-10
4000K	1.64e-09	1.13e-14
10000K	3.79e-09	6.07e-11
20000K	4.55e-09	7.30e-10
Lyman-alpha	1.15e-09	0.00e+00
Solar	1.81e-09	3.01e-11
TW-Hya	3.66e-09	2.18e-10
Cosmic ray UV	5.23e-13	5.58e-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	1.68	2.46	0.57	2.18	[Download]	[Download]
Mathis	1.69	2.46	0.57	2.18	[Download]	[Download]
4000K	1.56	2.29	0.63	2.06	[Download]	[Download]
10000K	1.60	2.33	0.62	2.09	[Download]	[Download]
20000K	1.66	2.43	0.58	2.15	[Download]	[Download]
Lyman-alpha	2.11	2.97	0.58	2.70	[Download]	[Download]
Solar	1.60	2.34	0.62	2.10	[Download]	[Download]
TW-Hya	1.67	2.44	0.58	2.17	[Download]	[Download]

Photoionisation

Radiation	γE2	γexp	k0fit	γfit	Line data	Dust data
ISRF	2.86	3.85	0.48	3.49	[Download]	[Download]
Mathis	2.89	3.89	0.48	3.52	[Download]	[Download]
4000K	2.51	3.46	0.52	3.13	[Download]	[Download]
10000K	2.79	3.77	0.48	3.41	[Download]	[Download]
20000K	2.90	3.91	0.48	3.54	[Download]	[Download]
Lyman-alpha	-	-	-	-
Solar	3.17	4.21	0.46	3.83	[Download]	[Download]
TW-Hya	3.01	4.03	0.46	3.64	[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.]