TITLE:
Change in Mass of Spinning Black Holes w.r.t. the Angular Momentum
AUTHORS:
Dipo Mahto, Anuradha Kumari
KEYWORDS:
Spinning Black Holes, Angular Momentum, Spinning Parameter
JOURNAL NAME:
Journal of Modern Physics,
Vol.9 No.5,
April
28,
2018
ABSTRACT: Mahto et al. have shown δS≥0 and M2=a*J by using the first law of the black hole mechanics in the vacuum and Einstein mass-energy equivalence relation specially for spinning black holes. In the present paper, this work is extended to propose a model for the change in mass of the spinning black holes due to corresponding change in the angular momentum for maximum & half spin parameter of black holes (a* = 1 & 1/2) and calculated their values for different test black holes in XRBs and AGN. We have also shown that the change in mass of the spinning black holes due to corresponding change in the angular momentum for maximum spinning rate of black holes (a* = 1) is double to that of the spinning black holes having spinning parameter (a* = 1/2).