Detailed Information on Publication Record

SCHEE, Jan and Zdeněk STUCHLÍK. Optical effects in brany Kerr spacetimes. In Proceedings of RAGtime 8/9: Workshops on black holes and neutron stars. Opava, 2007, p. 221-256, 35 pp. ISBN 978-80-7248-419-5.

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Basic information
Original name	Optical effects in brany Kerr spacetimes
Authors	SCHEE, Jan and Zdeněk STUCHLÍK.
Edition	Opava, Proceedings of RAGtime 8/9: Workshops on black holes and neutron stars, p. 221-256, 35 pp. 2007.

Other information
Original language	English
Type of outcome	Proceedings paper
Field of Study	10308 Astronomy
Country of publisher	Czech Republic
Confidentiality degree	is not subject to a state or trade secret
Organization unit	Faculty of Philosophy and Science in Opava
ISBN	978-80-7248-419-5
Keywords in English	optical effects, brany Kerr spacetimes, black hole, Kerr metric, Weyl tensor, black hole spacetime
Tags	RAGtime, sbornik, UF
Tags	International impact
Links	GA202/06/0041, research and development project. LC06014, research and development project. MSM4781305903, plan (intention).
Changed by	Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 21/12/2020 10:29.

Abstract
In the framework of the brany models, rotating black holes are described by the Kerr metric with a tidal charge representing the influence of the shear effects of the bulk space Weyl tensor onto the black hole spacetime. Here we study the influence of the tidal charge onto some optical phenomena in rotating black hole spacetimes. The photon motion is given in terms of constants of the geodetical motion related to the spacetime symmetries and escape photon cones are given for special families of locallynon-rotating, circular geodetical and radially freely-falling observers. The shadow of a rotating black hole and the shape of an equatorial thin accretion disk are given and classified in terms of the black hole rotational and tidal parameters.

Abstract

In the framework of the brany models, rotating black holes are described by the Kerr metric with a tidal charge representing the influence of the shear effects of the bulk space Weyl tensor onto the black hole spacetime. Here we study the influence of the tidal charge onto some optical phenomena in rotating black hole spacetimes. The photon motion is given in terms of constants of the geodetical motion related to the spacetime symmetries and escape photon cones are given for special families of locallynon-rotating, circular geodetical and radially freely-falling observers. The shadow of a rotating black hole and the shape of an equatorial thin accretion disk are given and classified in terms of the black hole rotational and tidal parameters.