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Images and spectra of time-dependent two-component advective flow in presence of outflows.

Authors :
Chatterjee, Arka
Chakrabarti, Sandip K
Ghosh, Himadri
Garain, Sudip K
Source :
Monthly Notices of the Royal Astronomical Society. Aug2018, Vol. 478 Issue 3, p3356-3366. 11p.
Publication Year :
2018

Abstract

Two-component advective flow (TCAF) successfully explains the spectral and temporal properties of outbursting or persistent sources. Images of static TCAF with Compton cloud or centrifugal pressure supported boundary layer due to gravitational bending of photons have been studied before. In this paper, we study time-dependent images of advective flows around a Schwarzschild black hole, which include cooling effects due to Comptonization of soft photons from Keplerian discs as well as the self-consistently produced jets and outflows. We show the overall image of the disc-jet system after convolving with a typical beamwidth. A long exposure image with time-dependent system need not to show the black hole horizon conspicuously, unless one is looking at a soft state with no jet or the system along the jet axis. Assuming these disc-jet configurations are relevant to radio emitting systems also, our results would be useful to look for event horizons in high accretion rate supermassive black holes in Seyfert galaxies, RL Quasars. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00358711
Volume :
478
Issue :
3
Database :
Academic Search Index
Journal :
Monthly Notices of the Royal Astronomical Society
Publication Type :
Academic Journal
Accession number :
131008953
Full Text :
https://doi.org/10.1093/mnras/sty1054