bexriv: reflected e-folded broken power law, ionized medium

A broken power-law spectrum multiplied by exponential high-energy cutoff, exp(-E/Ec), and reflected from ionized material. See Magdziarz & Zdziarski (1995) for details.

The output spectrum is the sum of an e-folded broken power law and the reflection component. The reflection component alone can be obtained for . Then the actual reflection normalization is . Note that you need to change then the limits of excluding zero (as then the direct component appears). If , there is no cutoff in the power law. The metal and iron abundance are variable with respect to those set by the command abund.

The core of this model is a Greens' function integration with one numerical integral performed for each model energy. The numerical integration is done using an adaptive method which continues until a given estimated fractional precision is reached. The precision can be changed by setting BEXRIV_PRECISION eg xset BEXRIV_PRECISION 0.05. The default precision is 0.01 (ie 1%).

par1 | , first power law photon index |

par2 | , break energy (keV) |

par3 | , second power law photon index |

par4 | , the e-folding energy in keV (if there is no cutoff) |

par5 | , reflection scaling factor (1 for isotropic source above disk) |

par6 | , redshift |

par7 | abundance of elements heavier than He relative to the solar abundances |

par8 | iron abundance relative to the above |

par9 | cosine of inclination angle |

par10 | disk temperature (K) |

par11 | disk ionization parameter, , where is the 5eV-20keV irradiating flux and is the density of the reflector; see Done et al. (1992). |

norm | photon flux at 1 keV of the cutoff broken power-law only (no reflection) in the observed frame. |