TL;DR
This paper analyzes how matter accretes onto a Kiselev black hole, deriving key equations and conditions, with a focus on the influence of quintessence on the accretion process.
Contribution
It provides the first analytic expressions for critical points and mass accretion rates onto a Kiselev black hole, highlighting the role of quintessence parameter.
Findings
Critical points depend on quintessence parameter
Analytic expressions for accretion rate derived
Polytropic gas case discussed in detail
Abstract
We consider accretion onto a Kiselev black hole. We obtain the fundamental equations for accretion without the back-reaction. We determine the general analytic expressions for the critical points and the mass accretion rate and find the physical conditions the critical points should fulfill. The case of polytropic gas are discussed in detail. It turns out that the quintessence parameter plays an important role in the accretion process.
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