P

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	—	1.89e-09
Mathis	—	1.37e-09
4000K	—	1.39e-13
10000K	—	2.05e-10
20000K	—	1.55e-09
Lyman-alpha	—	0.00e+00
Solar	—	3.27e-11
TW-Hya	—	3.63e-10
Cosmic ray UV	—	1.46e-13

[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	2.51	3.45	0.51	3.11	[Download]	[Download]
Mathis	2.52	3.46	0.50	3.12	[Download]	[Download]
4000K	2.31	3.22	0.56	2.93	[Download]	[Download]
10000K	2.44	3.37	0.52	3.04	[Download]	[Download]
20000K	2.54	3.48	0.50	3.13	[Download]	[Download]
Lyman-alpha	-	-	-	-
Solar	2.72	3.68	0.45	3.27	[Download]	[Download]
TW-Hya	2.59	3.54	0.48	3.18	[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.]