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Transonic structure of slowly rotating accretion flows with shocks around black holes

Published online by Cambridge University Press:  23 June 2017

Petra Suková Open the ORCID record for Petra Suková [Opens in a new window] ,
Szymon Charzyński  and
Agnieszka Janiuk
Petra Suková
Affiliation:
Center for Theoretical Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland Astronomical Institute, Czech Academy of Sciences Boční II 1401, 141 00 Prague, Czech Republic email: [email protected]
Szymon Charzyński
Affiliation:
Center for Theoretical Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland Chair of Mathematical Methods in Physics, University of Warsaw ul. Pasteura 5, 02-093 Warsaw, Poland
Agnieszka Janiuk
Affiliation:
Center for Theoretical Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland
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Abstract

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We present recent results of the studies of low angular momentum accretion of matter onto Schwarzschild black hole using fully relativistic numerical simulations. We compare the resulting 2D structure of transonic flows with results of 1D pseudo-Newtonian computations of non-magnetized flow. The research has observable consequences on black holes on the whole mass scale, in particular it is related to the time-scale and shape of luminosity flares in Sgr A* or to the evolution of QPO frequency during outbursts of microquasars.

Keywords

accretionaccretion diskshydrodynamicsshock wavesX-rays: binaries
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S324: New Frontiers in Black Hole Astrophysics , September 2016 , pp. 23 - 26
Copyright
Copyright © International Astronomical Union 2017 

References

Chakrabarti, S. & Titarchuk, L. G. 1995, ApJ, 455, 623 Google Scholar
Nandi, A., Debnath, D., Mandal, S., & Chakrabarti, S. K. 2012, A&A, 542, A56 Google Scholar
Suková, P., Charzyński, S., & Janiuk, A. 2016, preprint arXiv:1602.07215 Google Scholar
Suková, P. & Janiuk, A. 2015, Mon. Not. R. Astron. Soc., 447, 1565 Google Scholar
Tchekhovskoy, A., Narayan, R., & McKinney, J. C. 2011, Mon. Not. R. Astron. Soc., 418, L79 Google Scholar