Spectrum of two component flows around a super-massive black hole: an application to M87

Details Spectrum of two component flows around a super-massive black hole: an application to M87 Spectrum of two component flows around a super-massive black hole: an application to M87

2008-11-18

arxiv.org/abs/0811.2977v1

Astronomy and Astrophysics

Astrophysics

12 pages, 2 figures and 1 table. Accepted in Astrophysical Journal Letter

Scientific paper

10.1086/595782

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.

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