期刊
GENERAL RELATIVITY AND GRAVITATION
卷 50, 期 8, 页码 -出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10714-018-2423-z
关键词
Black hole shadow; Noncommutativity; Plasma
资金
- Council of Scientific and Industrial Research (CSIR, Govt. of India)
- DST-SERB [YSS/2014/000180]
- IUCAA, Pune
We introduce the noncommutative geometry inspired Ayn Beato Garcia black hole metric and study various properties of this metric by which we try to probe the allowed values of the noncommutative parameter under certain conditions. We then construct the shadow (apparent shape) cast by this black hole. We derive the corresponding photon orbits and explore the effects of noncommutative spacetime on them. We then study the effects of noncommutative parameter , smeared mass m(r), smeared charge q(r) on the silhouette of the shadow analytically and present the results graphically. We then discuss the deformation which arises in the shape of the shadow under various conditions. Finally, we introduce a plasma background and observe how the shadow behaves in this scenario.
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