sirf: self-irradiated funnel

The multi-blackbody “Self-IrRadiated Funnel” model is designed to model optically-thick outflow-dominated accretion. The basic idea is simple: you just assume a lot of matter, angular momentum and energy emerges in a limited volume. Momentum conservation leads to non-sphericity of the flow that has subsequently conical (funnel-like) shape. The model calculates temperature distribution at the funnel walls (taking into account irradiation by iterative process) and the outer photosphere. We also assume that inside the cone there is a deep pseudo-photosphere. Relativistic boosts are taken into account for high velocities. For a comprehensive description of the physical model, see: Abolmasov, Karpov & Kotani (2009).

par1 | , inner temperature (at the inner, inside-the-funnel photosphere). |

par2 | , inner (inside-the-funnel photosphere) radius in “spherisation radius” units (the latter is defined as ). |

par3 | , outer photosphere radius in “spherisation radius” units. |

par4 | , half-opening angle of the cone. |

par5 | incl, inclination angle of the funnel. Affects mainly self-occultation and relativistic boost effects. |

par6 | , velocity law exponent, . |

par7 | , adiabatic index. It affects the inner, hotter parts of the flow, therefore we set is to 4/3 by default. |

par8 | , mass ejection rate in Eddington (critical) units. |

par9 | irrad, number of iterations for irradiation. |

norm |