CH₃CN

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	2.95e-09	1.20e-10
Mathis	2.06e-09	1.11e-10
4000K	9.10e-12	3.77e-16
10000K	5.37e-10	7.85e-12
20000K	2.40e-09	1.32e-10
Lyman-alpha	1.71e-09	0.00e+00
Solar	1.09e-10	1.56e-11
TW-Hya	1.64e-09	7.75e-11
Cosmic ray UV	2.57e-13	9.75e-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	γE2	γexp	k0fit	γfit	Line data	Dust data
ISRF	2.18	3.06	0.48	2.70	[Download]	[Download]
Mathis	2.20	3.09	0.48	2.72	[Download]	[Download]
4000K	1.63	2.38	0.61	2.13	[Download]	[Download]
10000K	1.96	2.81	0.53	2.48	[Download]	[Download]
20000K	2.18	3.06	0.48	2.69	[Download]	[Download]
Lyman-alpha	2.11	2.97	0.58	2.70	[Download]	[Download]
Solar	2.11	2.98	0.51	2.63	[Download]	[Download]
TW-Hya	2.12	2.98	0.54	2.68	[Download]	[Download]

Photoionisation

Radiation	γE2	γexp	k0fit	γfit	Line data	Dust data
ISRF	3.12	4.19	0.50	3.84	[Download]	[Download]
Mathis	3.14	4.21	0.50	3.87	[Download]	[Download]
4000K	2.83	3.81	0.48	3.44	[Download]	[Download]
10000K	3.10	4.16	0.49	3.80	[Download]	[Download]
20000K	3.14	4.21	0.50	3.87	[Download]	[Download]
Lyman-alpha	-	-	-	-
Solar	3.34	4.45	0.49	4.09	[Download]	[Download]
TW-Hya	3.31	4.40	0.48	4.04	[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.]