SCHEE, Jan and Zdeněk STUCHLÍK. Ghost images in Bardeen and ABG spacetimes. In Bianchi M., Jantzen R.T., Ruffini R. The Fourteenth Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories (in 4 Volumes) : Proceedings of the MG14 Meeting on General Relativity, University of Rome “La Sapienza”, Italy, 12-18 July 2015. Singapore: World Scientific Publishing, 2018, p. 3722-3726. ISBN 978-981-322-659-3. Available from: https://dx.doi.org/10.1142/9789813226609_0487.
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Basic information
Original name Ghost images in Bardeen and ABG spacetimes
Authors SCHEE, Jan (203 Czech Republic, guarantor, belonging to the institution) and Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution).
Edition Singapore, The Fourteenth Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories (in 4 Volumes) : Proceedings of the MG14 Meeting on General Relativity, University of Rome “La Sapienza”, Italy, 12-18 July 2015, p. 3722-3726, 5 pp. 2018.
Publisher World Scientific Publishing
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 10308 Astronomy
Country of publisher Singapore
Confidentiality degree is not subject to a state or trade secret
Publication form printed version "print"
WWW URL
RIV identification code RIV/47813059:19240/18:A0000367
Organization unit Faculty of Philosophy and Science in Opava
ISBN 978-981-322-659-3
Doi http://dx.doi.org/10.1142/9789813226609_0487
Keywords in English regular spacetimes; null geodesics; ghost images
Tags International impact, Reviewed
Links GB14-37086G, research and development project.
Changed by Changed by: RNDr. Jan Hladík, Ph.D., učo 25379. Changed: 4/4/2019 18:29.
Abstract
We present our study of bending of null geodesics in the regular spacetimes, particularly in Bardeen and Ayon-Beato-Garcia (ABG) no-horizon spacetimes. We show that thanks to “flatness” of these spacetimes in the central region there exist interesting optical phenomena related to photons with small impact parameters traveling through such gravitational field . There exist a critical impact parameter which gives maximal deflection of light in the Bardeen and ABG no-horizon spacetimes. We discuss “ghost” direct and indirect images of Keplerian discs which are generated by photons with small impact parameters and to the classical scattering cross section in such regular but strongly curved spacetimes.
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