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Constraints on blac...
Constraints on black-hole charges with the 2017 EHT observations of M87∗
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- Kocherlakota, Prashant (författare)
- Johann Wolfgang Goethe Universität Frankfurt am Main,Goethe University Frankfurt
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- Rezzolla, Luciano (författare)
- Johann Wolfgang Goethe Universität Frankfurt am Main,Goethe University Frankfurt,Trinity College Dublin, the University of Dublin
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- Falcke, Heino (författare)
- Radboud Universiteit,Radboud University
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- Fromm, Christian M. (författare)
- Harvard University,Johann Wolfgang Goethe Universität Frankfurt am Main,Goethe University Frankfurt,Harvard-Smithsonian Center for Astrophysics
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- Conway, John, 1963 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Lindqvist, Michael, 1960 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2021
- 2021
- Engelska.
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Ingår i: Physical Review D. - 2470-0010 .- 2470-0029. ; 103:10
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https://research.cha... (primary) (free)
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Our understanding of strong gravity near supermassive compact objects has recently improved thanks to the measurements made by the Event Horizon Telescope (EHT). We use here the M87∗ shadow size to infer constraints on the physical charges of a large variety of nonrotating or rotating black holes. For example, we show that the quality of the measurements is already sufficient to rule out that M87∗ is a highly charged dilaton black hole. Similarly, when considering black holes with two physical and independent charges, we are able to exclude considerable regions of the space of parameters for the doubly-charged dilaton and the Sen black holes.
Ämnesord
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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