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Cited by 444

The DOI matches its Crossref record; 32 of the 32 references it cites were found in a registry or an index.

Measurement of the Kerr spin parameter by observation of a compact object’s shadow

Open access
Hioki, Kenta, Maeda, Kei-ichi·2009·Physical Review D
DOI 10.1103/physrevd.80.024042
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Abstract

A black hole casts a shadow as an optical appearance because of its strong gravitational field. We study how to determine the spin parameter and the inclination angle by observing the apparent shape of the shadow, which is distorted mainly by those two parameters. Defining some observables characterizing the apparent shape (its radius and distortion parameter), we find that the spin parameter and inclination angle of a Kerr black hole can be determined by the observation. This technique is also extended to the case of a Kerr naked singularity.

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Metadata

Authors
Hioki, K., & Maeda, K.-I.
Venue
Physical Review D
Publisher
American Physical Society (APS)
Published
2009-07-29
Volume
80
Issue
2
ISSN
  • 0556-2821 (ISSN-L)
  • 1550-7998
  • 1550-2368
DOI
10.1103/physrevd.80.024042
OpenAlex
W2067041053
Cited by
444
References
32
FWCI
4.28
Type
journal article
Language
en
Open access
green

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