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Table 1.
Input parameters for the accretion column model.
| Parameter | Short | Value |
|---|---|---|
| initial free-fall velocity | v0 | 1 × 1010 cm s−1 |
| mass accretion ratea | Ṁ | 5 × 1017 g s−1 |
| accretion column radius | rAC | 647 m |
| accretion column height | hAC | 5 km |
| radial optical depth of boundaryb | τ⊥ | 1 |
| surface magnetic field strength | B0 | 2.5 × 1012 G |
| radial optical depth of CRSF layerb | τ⊥CRSF | 3 × 10−4 |
| neutron star radius | RNS | 10 km |
| neutron star mass | MNS | 1.4 M⊙ |
Notes.
(a)
Ṁ relates to the mass accretion rate of the accretion column and not to that of the neutron star in a whole.
(b)
Optical depths are given in Thomson values.
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