出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We study the timing and spectral properties of two component accretion flows around black holes
which may or may not have jets and outflows. We discuss the origin of quasi-periodic-oscillations
(QPOs) as the oscillations of various interfaces, such as the inner edge of the Keplerian disk, shock
location, inner shock location as well as due to the periodic cooling of the the subsonic region of
the outflow. As far as the spectral properties are concerned, we show that the soft photons emitted
by the Keplerian component and the synchrotron radiation from the pre-shock or the post-shock
sub-Keplerian component are inverse Comptonized by the thermal and shock-accelerated nonthermal
electrons in the post-shock region. The resulting photons can have energy till a few MeV
as observed in several black hole candidates. We produce examples of the spectrum for various
flow parameters as well as the mass of the black hole.
