Ghost images in Bardeen and ABG spacetimes

D 2018

Ghost images in Bardeen and ABG spacetimes

SCHEE, Jan and Zdeněk STUCHLÍK

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

Language

English

Type of outcome

Stať ve sborníku

Field of Study

10308 Astronomy

Country of publisher

Singapore

Confidentiality degree

není předmětem státního či obchodního tajemství

Publication form

printed version "print"

References:

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

Links

GB14-37086G, research and development project.

Změněno: 4/4/2019 18:29, RNDr. Jan Hladík, Ph.D.

Abstract

V originále

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.

Citovat

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.

@inproceedings{30463,
   author = {Schee, Jan and Stuchlík, Zdeněk},
   address = {Singapore},
   booktitle = {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},
   doi = {http://dx.doi.org/10.1142/9789813226609_0487},
   editor = {Bianchi M., Jantzen R.T., Ruffini R.},
   keywords = {regular spacetimes; null geodesics; ghost images},
   howpublished = {tištěná verze "print"},
   language = {eng},
   location = {Singapore},
   isbn = {978-981-322-659-3},
   pages = {3722-3726},
   publisher = {World Scientific Publishing},
   title = {Ghost images in Bardeen and ABG spacetimes},
   url = {https://www.worldscientific.com/doi/abs/10.1142/9789813226609_0487},
   year = {2018}
}

TY  - JOUR
ID  - 30463
AU  - Schee, Jan - Stuchlík, Zdeněk
PY  - 2018
TI  - Ghost images in Bardeen and ABG spacetimes
PB  - World Scientific Publishing
CY  - Singapore
SN  - 9789813226593
KW  - regular spacetimes
KW  - null geodesics
KW  - ghost images
UR  - https://www.worldscientific.com/doi/abs/10.1142/9789813226609_0487
L2  - https://www.worldscientific.com/doi/abs/10.1142/9789813226609_0487
N2  - 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.
ER  -

SCHEE, Jan and Zdeněk STUCHLÍK. Ghost images in Bardeen and ABG spacetimes. In Bianchi M., Jantzen R.T., Ruffini R. \textit{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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