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Table 1.
Overview of the free parameters of the accretion column model by Becker & Wolff (2007).
| Parameter | Unit | Description |
|---|---|---|
| Ṁ | [g s−1] | Accretion rate |
| kTe | [keV] | Mean electron temperature |
| r0 | [m] | Accretion column radius |
| B | [G] | Magnetic field along the column |
| ξ (†) | Importance of the escape of | |
| photons from the accretion column | ||
| δ (†) | Relative importance of bulk | |
| & thermal Comptonization |
Notes. (†)Equivalent to a parametrization using 
and σ∥.
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