PH⁺

Cross sections

Cross section figure.

[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]
[Download cross section figure as pdf]

Photodissociation and ionisation rates (s^-1)

Radiation	Photodissociation	Photoionisation
ISRF	1.40e-10	—
Mathis	1.09e-10	—
4000K	9.59e-08	—
10000K	4.08e-10	—
20000K	1.07e-10	—
Lyman-alpha	1.67e-10	—
Solar	8.01e-08	—
TW-Hya	3.08e-10	—
Cosmic ray UV	8.98e-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	γ_E2	γ_exp	k⁰_fit	γ_fit	Line data	Dust data
ISRF	1.16	1.93	0.49	1.57	[Download]	[Download]
Mathis	1.10	1.82	0.51	1.49	[Download]	[Download]
4000K	0.93	1.45	0.73	1.30	[Download]	[Download]
10000K	1.01	1.58	0.70	1.41	[Download]	[Download]
20000K	1.22	2.01	0.48	1.64	[Download]	[Download]
Lyman-alpha	2.11	2.97	0.58	2.70	[Download]	[Download]
Solar	0.93	1.45	0.74	1.29	[Download]	[Download]
TW-Hya	1.03	1.68	0.59	1.42	[Download]	[Download]

Photoionisation

Radiation	γ_E2	γ_exp	k⁰_fit	γ_fit	Line data	Dust data
ISRF	-	-	-	-
Mathis	-	-	-	-
4000K	-	-	-	-
10000K	-	-	-	-
20000K	-	-	-	-
Lyman-alpha	-	-	-	-
Solar	-	-	-	-
TW-Hya	-	-	-	-

[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.]