SCHEE, Jan and Zdeněk STUCHLÍK. OPTICAL PHENOMENA IN THE FIELD OF BRANEWORLD KERR BLACK HOLES. International Journal of Modern Physics D. SG - Singapurská republika, 2009, vol. 18, No 6, p. 983-1024, 41 pp. ISSN 0218-2718. Available from: https://dx.doi.org/10.1142/S0218271809014881.
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Basic information
Original name OPTICAL PHENOMENA IN THE FIELD OF BRANEWORLD KERR BLACK HOLES
Authors SCHEE, Jan and Zdeněk STUCHLÍK.
Edition International Journal of Modern Physics D, SG - Singapurská republika, 2009, 0218-2718.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Confidentiality degree is not subject to a state or trade secret
Organization unit Faculty of Philosophy and Science in Opava
Doi http://dx.doi.org/10.1142/S0218271809014881
UT WoS 000267868900007
Keywords in English Braneworld, rotating black hole, optical effects
Tags UF
Tags International impact, Reviewed
Links LC06014, research and development project. MSM4781305903, plan (intention).
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 21/12/2020 15:34.
Abstract
We study the influence of the tidal charge parameter of the braneworld models on some optical phenomena in rotating black hole space-times. The escape photon cones are determined for special families of locally nonrotating, circular geodetical and radially free-falling observers. The silhouette of a rotating black hole, the shape of an equatorial thin accretion disk and the time delay effect for direct and indirect images of a radiating hot spot orbiting the black hole are given and classified in termsof the black hole rotational and tidal parameters. It is shown that increase of the negatively valued tidal parameter, with the rotational parameter fixed, generally strengthens the relativistic effects and suppresses the rotation-induced asymmetries inthe optical phenomena.
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