Radiative Efficiency of Black Holes in AGN

Abstract

Neeraj Pant et al.(2010) gave a detailed study of BCT First solution (Tewari,1988) representing time dependent balls of perfect fluid with matter-radiation in general relativity to assume the life time of quasar 7 9 5 10 M × ⊙ as well as the radiative efficiency of black hole is smaller than the same mass of quasars.

Relativistic Mass of Spinning Black Holes in XRBs

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The present work provides a model for the relativistic mass of spinning black holes by using the model for black hole mass estimation (M=rv 2 /G) and the model for variation of universal constant(G) with spinning velocity of black holes in the strong gravitational field as proposed by Mahto et al and calculates their values for XRBs black holes and concludes to justify the special relativity as well as model for variation of gravitational constant in the strong gravitational field as proposed by Mahto et al(2013).

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