The structure and appearance of winds from supercritical accretion disks. III - Thermal and spectral properties of supercritical winds.

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Binary Stars, Stellar Mass Accretion, Stellar Winds, Supercritical Flow, X Ray Astronomy, Astrophysics, Novae, Optical Thickness, Quasars, Stellar Models, Thermal Emission

Scientific paper

The thermal structure and emergent spectral properties of the supereritical winds outlined in Paper II are presented. Thermal emission due to free-free and Compton processes is considered, along with some nonthermal aspects, for the case when the photons are untrapped throughout the wind envelope. Useful figures and procedures for determining the injection region temperature, emergent spectral temperature, and rough spectral shape are outlined with some attention given to models with central objects of 1 Msun and 108 Msun. A scenario is outlined where the central source of quasars is interpreted as a supercritical wind heated at its base on a nearly dynamical time scale.

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