Observational Evidences for Spinning Black Holes: A Proof of General Relativity For Space Time Around Rotating Black Holes

Mukhopadhyay, Banibrata and Bhattacharya, Debbijoy and Sreekumar, P. (2012) Observational Evidences for Spinning Black Holes: A Proof of General Relativity For Space Time Around Rotating Black Holes. International Journal of Modern Physics D, 21 (11). pp. 1-19. ISSN 0218-2718

[img] PDF
paper_jmpd_2012.pdf - Published Version
Restricted to Registered users only

Download (604kB) | Request a copy
Official URL: http://www.worldscientific.com

Abstract

Since it was theorized by Kerr in 1963, determining the spin of black holes from observed data was paid very little attention until few years back. The main reasons behind this were the unavailability of adequate data and the lack of appropriate techniques. In this paper, we explore determining/predicting the spin of several black holes in X-ray binaries (XRBs) and in the center of galaxies, using X-ray and gamma-ray satellite data. For Xray binaries, in order to explain observed quasi-periodic oscillations (QPOs), our model predicts the spin parameter of underlying black holes. On the other hand, the nature of spin parameters of black holes in BL Lacs and flat spectrum radio quasars (FSRQs) is predicted by studying the total luminosities of systems based on Fermi γ-ray data.All sources considered here exhibit characteristics of spinning black holes, which verifies natural existence of the Kerr metric.

Item Type: Article
Uncontrolled Keywords: Black hole physics; XRBs; BL Lacertae objects: general; quasars: general;gravitation; relativity
Subjects: Departments at MU > Manipal Centre for Natural Sciences
Depositing User: MCNS Library
Date Deposited: 29 Jul 2013 13:20
Last Modified: 06 Nov 2014 04:45
URI: http://eprints.manipal.edu/id/eprint/136702

Actions (login required)

View Item View Item