Induced radio and X-ray emission from an accretion disk

Details Induced radio and X-ray emission from an accretion disk Induced radio and X-ray emission from an accretion disk

2003-10-17

arxiv.org/abs/astro-ph/0310491v2

Odessa Astronomical Publications 17, 73 (2004)

Astronomy and Astrophysics

Astrophysics

10 pages, AASTeX, terminology corrected, references added

Scientific paper

Radio and X-ray emission from compact sources with accretion disks (active galactic nuclei, pulsars and X-ray binaries) is considered. It is shown that both radio and X-ray emission from these sources can be interpreted as emission of a hot ($T \geqslant 3 \times 10^{7}K$) plasma in the inner part of an accretion disk or in the disk corona. Radio emission is produced by the maser amplification of thermal radio emission in a hot plasma and corresponds to the transitions between highly located energy levels (somewhat similarly to the recombination lines). The X-ray emission is either thermal radiation from dense filaments or is produced by the coherent inverse Compton scattering of radio photons in the same dense filaments. The same mechanism, which gives rise to the maser amplification at radio wavelengths, produces also laser amplification in optical in X-ray binaries.

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