HC₃N

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	7.13e-09	2.28e-10
Mathis	4.67e-09	1.84e-10
4000K	6.23e-10	1.34e-15
10000K	3.49e-09	1.62e-11
20000K	6.28e-09	2.21e-10
Lyman-alpha	3.12e-09	0.00e+00
Solar	9.63e-10	1.19e-11
TW-Hya	3.83e-09	7.72e-11
Cosmic ray UV	5.95e-13	1.64e-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	1.79	2.59	0.57	2.31	[Download]	[Download]
Mathis	1.80	2.60	0.56	2.31	[Download]	[Download]
4000K	1.70	2.45	0.63	2.22	[Download]	[Download]
10000K	1.72	2.49	0.60	2.23	[Download]	[Download]
20000K	1.78	2.57	0.57	2.29	[Download]	[Download]
Lyman-alpha	2.11	2.97	0.58	2.70	[Download]	[Download]
Solar	1.77	2.55	0.61	2.31	[Download]	[Download]
TW-Hya	1.88	2.70	0.56	2.41	[Download]	[Download]

Photoionisation

Radiation	γE2	γexp	k0fit	γfit	Line data	Dust data
ISRF	3.02	4.07	0.51	3.73	[Download]	[Download]
Mathis	3.04	4.09	0.50	3.75	[Download]	[Download]
4000K	2.88	3.90	0.52	3.57	[Download]	[Download]
10000K	3.00	4.04	0.51	3.70	[Download]	[Download]
20000K	3.04	4.09	0.51	3.75	[Download]	[Download]
Lyman-alpha	-	-	-	-
Solar	3.20	4.28	0.49	3.92	[Download]	[Download]
TW-Hya	3.10	4.15	0.50	3.81	[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.]