Accretion onto a noncommutative geometry inspired black hole

被引:15
|
作者
Kumar, Rahul [1 ]
Ghosh, Sushant G. [1 ,2 ,3 ]
机构
[1] Jamia Millia Islamia, Ctr Theoret Phys, New Delhi 110025, India
[2] Jamia Millia Islamia, MCARS, New Delhi 110025, India
[3] Univ KwaZulu Natal, Sch Math Stat & Comp Sci, Astrophys & Cosmol Res Unit, Private Bag X54001, ZA-4000 Durban, South Africa
来源
EUROPEAN PHYSICAL JOURNAL C | 2017年 / 77卷 / 09期
关键词
EMERGENT RADIATION SPECTRUM; FIELD THEORY; MATTER; GAS;
D O I
10.1140/epjc/s10052-017-5141-x
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
The spherically symmetric accretion onto a non-commutative (NC) inspired Schwarzschild black hole is treated for a polytropic fluid. The critical accretion rate (M)over dot, sonic speed as and other flow parameters are generalized for the NC inspired static black hole and compared with the results obtained for the standard Schwarzschild black holes. Also explicit expressions for gas compression ratios and temperature profiles below the accretion radius and at the event horizon are derived. This analysis is a generalization of Michel's solution to the NC geometry. Owing to the NC corrected black hole, the accretion flow parameters also have been modified. It turns out that (M)over dot approximate to M-2 is still achievable but r(s) seems to be substantially decreased due to the NC effects. They in turn do affect the accretion process.
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页数:10
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