Ca+
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]
[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 | 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 | 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.]