Spectrum of two component flows around a super-massive black hole: an application to M87
Astrophysics
2009-11-13 v1
Abstract
We calculate the spectra of two-component accretion flows around black holes of various masses, from quasars to nano-quasars. Specifically, we fit the observational data of M87 very satisfactorily using our model and find that the spectrum may be well fitted by a sub-Keplerian component alone, and there is little need of any Keplerian component. The non-thermal distribution of electrons produced by their acceleration across the standing shock in the sub-Keplerian component is enough to produce the observed flat spectrum through the synchrotron radiation.
Cite
@article{arxiv.0811.2977,
title = {Spectrum of two component flows around a super-massive black hole: an application to M87},
author = {Samir Mandal and Sandip K. Chakrabarti},
journal= {arXiv preprint arXiv:0811.2977},
year = {2009}
}
Comments
12 pages, 2 figures and 1 table. Accepted in Astrophysical Journal Letter