Black holes in active galactic nuclei

0356660 - ASÚ 2011 RIV GB eng C - Conference Paper (international conference)
Valtonen, M.J. - Mikkola, S. - Merritt, D. - Gopakumar, A. - Lehto, H.J. - Hyvönen, L. T. - Rampadarath, H. - Saunders, R. - Bašta, Milan - Hudec, R.
Black holes in active galactic nuclei.
Relativity in Fundamental Astronomy: Dynamics, Reference Frames, and Data Analysis. Cambridge: Cambridge University Press, 2010 - (Klioner, S.), s. 260-268. IAU Symposium Proceedings Series, IAU S261. ISBN 978-0-521-76481-0. ISSN 1743-9213.
[Symposium of the International Astronomical Union /261./. Virginia Beach (US), 27.04.2009-01.05.2009]
Institutional research plan: CEZ:AV0Z10030501
Keywords : galaxy center * black hole physics * relativity
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics

We will discuss the various Post Newtonian terms and their effect on the orbit solution. The over 100 year data base of optical variations in OJ287 puts limits on these terms and thus tests the ability of Einstein's General Relativity to describe, for the first time, dynamic binary black hole spacetime in the strong field regime. The quadrupole-moment contributions to the equations of motion allows us to constrain the 'no-hair' parameter to be 1.0 +/- 0.3 which supports the black hole no-hair theorem within the achievable precision.
Permanent Link: http://hdl.handle.net/11104/0195124