Two temperature accretion flows around rotating black holes and determining the kerr parameter of sources

TL;DR

This paper models two-temperature accretion flows around rotating black holes, incorporating radiation effects to explain observed luminosities and predict black hole spin parameters.

Contribution

It introduces a self-consistent model of two-temperature viscous accretion flows that accounts for radiation effects and predicts black hole spin parameters.

Findings

Successfully explains a wide range of observed luminosities.

Predicts the Kerr spin parameter of black holes.

Provides insights into accretion flow dynamics around rotating black holes.

Abstract

We model two temperature viscous accretion flows in the sub-Keplerian, optically thin, regime around rotating black holes including important radiation effects self-consistently. The model successfully explains observed luminosities from ultra-luminous to under-luminous sources and predicts the spin parameter of black holes.