Accretion onto a noncommutative geometry inspired black hole

Abstract

The spherically symmetric accretion onto a noncommutative (NC) inspired Schwarzschild black hole is treated for a polytropic fluid. The critical accretion rate $\dot{M}$, sonic speed $a_s$ and other flow parameters are generalised for the NC inspired black hole and compared with the results obtained for the standard Schwarzschild black holes. We also derive explicit expressions for gas compression ratios and temperature profiles below the accretion radius and at the event horizon. This analysis is a generalisation of Michel's solution to the NC geometry. Owing to the NC corrected black hole, the accretion flow parameters have also been modified. It turns out that $\dot{M}\approx M^2$ is still achievable but $r_s$ seems to be substantially decreased due to NC effects, that in turn does affect the accretion process.

Published in EPJC

References in corpus (3)

• Charged Black Holes in Phantom Cosmology
• Accretion onto a black hole in a string cloud background
• Phantom Accretion by Five Dimensional Charged Black Hole

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• Gravitational Wave Signatures from Periodic Orbits around a non-commutative inspired black hole surrounded by quintessence
• Asymptotically-Flat Black Hole Solutions in Symmergent Gravity
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