Ca⁺

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

Photodissociation and ionisation rates (s^-1)

Radiation	Photodissociation	Photoionisation
ISRF	—	2.45e-12
Mathis	—	1.96e-12
4000K	—	1.30e-17
10000K	—	1.73e-13
20000K	—	2.37e-12
Lyman-alpha	—	0.00e+00
Solar	—	5.24e-14
TW-Hya	—	5.98e-13
Cosmic ray UV	—	1.54e-16

[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	-	-	-	-
Mathis	-	-	-	-
4000K	-	-	-	-
10000K	-	-	-	-
20000K	-	-	-	-
Lyman-alpha	-	-	-	-
Solar	-	-	-	-
TW-Hya	-	-	-	-

Photoionisation

Radiation	γ_E2	γ_exp	k⁰_fit	γ_fit	Line data	Dust data
ISRF	3.04	4.09	0.51	3.76	[Download]	[Download]
Mathis	3.06	4.12	0.51	3.78	[Download]	[Download]
4000K	2.95	3.99	0.52	3.66	[Download]	[Download]
10000K	3.03	4.08	0.51	3.74	[Download]	[Download]
20000K	3.06	4.12	0.51	3.78	[Download]	[Download]
Lyman-alpha	-	-	-	-
Solar	3.02	4.07	0.51	3.74	[Download]	[Download]
TW-Hya	3.02	4.07	0.51	3.73	[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.]