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arXiv · 1801.04116

Advective accretion flow properties around rotating black holes - application to GRO J1655-40

Ramiz Aktar·Santabrata Das·Anuj Nandi·H. Sreehari
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Abstract

We examine the properties of the viscous dissipative accretion flow around rotating black holes in presence of mass loss. Considering thin disc approximation, we self-consistently calculate the inflow-outflow solutions and observe that the mass outflow rates decreases with the increase of viscosity parameter ($α$). Further, we carry out the model calculation of Quasi-periodic Oscillation frequency ($ν_{\rm QPO}$) that is frequently observed in black hole sources and observe that $ν^{\rm max}_{\rm QPO}$ increases with the increase of black hole spin ($a_k$). Then, we employ our model in order to explain the High Frequency Quasi-periodic Oscillations (HFQPOs) observed in black hole source GRO J1655-40. While doing this, we attempt to constrain the range of $a_k$ based on observed HFQPOs ($\sim$ 300 Hz and $\sim$ 450 Hz) for the black hole source GRO J1655-40.

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Ramiz Aktar, Santabrata Das, Anuj Nandi, H. Sreehari. 2018-01-12. Advective accretion flow properties around rotating black holes - application to GRO J1655-40. https://doi.org/10.1007/s12036-017-9507-0

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