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Cited by 330

The DOI matches its Crossref record; 39 of the 39 references it cites were found in a registry or an index.

Observing the shadow of Einstein-Maxwell-Dilaton-Axion black hole

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Wei, Shao-Wen, Liu, Yu-Xiao·2013·Journal of Cosmology and Astroparticle Physics
DOI 10.1088/1475-7516/2013/11/063
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Abstract

In this paper, the shadows cast by Einstein-Maxwell-Dilaton-Axion black hole and naked singularity are studied. The shadow of a rotating black hole is found to be a dark zone covered by a deformed circle. For a fixed value of the spin a , the size of the shadow decreases with the dilaton parameter b . The distortion of the shadow monotonically increases with b and takes its maximal when the black hole approaches to the extremal case. Due to the optical properties, the area of the black hole shadow is supposed to equal to the high-energy absorption cross section. Based on this assumption, the energy emission rate is investigated. For a naked singularity, the shadow has a dark arc and a dark spot or straight, and the corresponding observables are obtained. These results show that there is a significant effect of the spin a and dilaton parameter b on these shadows. Moreover, we examine the observables of the shadow cast by the supermassive black hole at the center of the Milky Way, which is very useful for us to probe the nature of the black hole through the astronomical observations in the near future.

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Metadata

Authors
Wei, S.-W., & Liu, Y.-X.
Venue
Journal of Cosmology and Astroparticle Physics
Publisher
IOP Publishing
Published
2013-11-29
Volume
2013
Issue
11
Pages
063-063
ISSN
  • 1475-7508 (ISSN-L)
  • 1475-7516
DOI
10.1088/1475-7516/2013/11/063
OpenAlex
W1969876157
Cited by
330
References
39
FWCI
2.63
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Observing the shadow of Einstein-Maxwell-Dilaton-Axion black hole. https://app.cochat.ai/papers/10.1088/1475-7516/2013/11/063
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Wei, S.-W., & Liu, Y.-X. (2013). Observing the shadow of Einstein-Maxwell-Dilaton-Axion black hole. Journal of Cosmology and Astroparticle Physics. https://doi.org/10.1088/1475-7516/2013/11/063

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