Table 1
Main parameters of the model.
| Parameter | Value |
|
|
|
| MBH: black hole mass [M⊙] | 14.8a |
| Rc: corona radius [rg] | 35 |
| rin/Rc: inner disk/corona ratio | 0.9b |
| Te: electron temperature [K] | 109 |
| Ti: ion temperature [K] | 1012 |
| ϵc: X-ray spectrum cut-off [keV] | 150 |
| α: X-ray spectrum power-law index | 1.6 |
| η: acceleration efficiency | 10-2 |
| Bc: magnetic field [G] | 5.7 × 105 |
| ni,ne: plasma density [cm-3] | 6.2 × 1013 |
| kT: disk characteristic temperature [keV] | 0.1 |
Notes.
Value for Cygnus X-1 (Orosz et al. 2011).
This is the typical value in models where the main source of seed photons for Comptonization are provided by the disk (Poutanen 1998; Haardt & Maraschi 1993). In our model, there are other relevant sources of photons that can relax the condition rin/Rc = 0.9; however, we only use this parameter to constrain the size of the corona, which for Cygnus X-1 cannot differ significantly from the one adopted in our work (Poutanen 1998).
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