Establishing a Relation between the Mass and the Spin of Stellar-Mass Black Holes

Banerjee, Indrani and Mukhopadhyay, Banibrata (2013) Establishing a Relation between the Mass and the Spin of Stellar-Mass Black Holes. In: PHYSICAL REVIEW LETTERS, 111 (6).

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Abstract

Stellar mass black holes (SMBHs), forming by the core collapse of very massive, rapidly rotating stars, are expected to exhibit a high density accretion disk around them developed from the spinning mantle of the collapsing star. A wide class of such disks, due to their high density and temperature, are effective emitters of neutrinos and hence called neutrino cooled disks. Tracking the physics relating the observed (neutrino) luminosity to the mass, spin of black holes (BHs) and the accretion rate ((M) over dot) of such disks, here we establish a correlation between the spin and mass of SMBHs at their formation stage. Our work shows that spinning BHs are more massive than nonspinning BHs for a given (M) over dot. However, slowly spinning BHs can turn out to be more massive than spinning BHs if (M) over dot at their formation stage was higher compared to faster spinning BHs.

Item Type:	Journal Article
Publication:	PHYSICAL REVIEW LETTERS
Publisher:	AMER PHYSICAL SOC
Additional Information:	Copyright of this article is belongs to AMER PHYSICAL SOC
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	02 Oct 2013 05:45
Last Modified:	02 Oct 2013 05:45
URI:	http://eprints.iisc.ac.in/id/eprint/47349

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