S

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]
[Photoionisation cross section — separate lines and continuum]
[Download cross section figure as pdf]

Photodissociation and ionisation rates (s^-1)

Radiation	Photodissociation	Photoionisation
ISRF	—	1.13e-09
Mathis	—	8.43e-10
4000K	—	8.09e-14
10000K	—	1.15e-10
20000K	—	9.75e-10
Lyman-alpha	—	0.00e+00
Solar	—	2.43e-11
TW-Hya	—	2.30e-10
Cosmic ray UV	—	7.91e-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	-	-	-	-
Mathis	-	-	-	-
4000K	-	-	-	-
10000K	-	-	-	-
20000K	-	-	-	-
Lyman-alpha	-	-	-	-
Solar	-	-	-	-
TW-Hya	-	-	-	-

Photoionisation

Radiation	γE2	γexp	k0fit	γfit	Line data	Dust data
ISRF	2.58	3.53	0.48	3.17	[Download]	[Download]
Mathis	2.61	3.56	0.48	3.19	[Download]	[Download]
4000K	2.27	3.17	0.56	2.88	[Download]	[Download]
10000K	2.47	3.40	0.50	3.06	[Download]	[Download]
20000K	2.62	3.58	0.47	3.20	[Download]	[Download]
Lyman-alpha	-	-	-	-
Solar	2.86	3.82	0.42	3.38	[Download]	[Download]
TW-Hya	2.69	3.64	0.45	3.25	[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.]