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Table 1
Main parameters of the corona of Cygnus X-1 in the LH state.
| Parameter | Value |
|
|
|
| MBH: black hole mass [M⊙] | 14.8a |
| Rc: corona radius [rg] | 30 |
| rin/Rc: inner disk/corona ratio | 0.9 |
| ϵc: X-ray spectrum cut-off [keV] | 150 |
| α: X-ray spectrum power-law index | 1.6 |
| η: acceleration efficiency | 10-2 |
| B: magnetic field [G] | 5.7 × 105 |
| kT: disk characteristic temperature [keV] | 0.1 |
|
|
|
| Free parameter | |
|
|
|
| ni,ne: plasma density [cm-3] | 6.2 × 1013 |
| Γ: primary injection index | 2.2 |
| q: fraction of power injected in relativistic particles | 0.05 |
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