Ghost images in Bardeen and ABG spacetimes

D 2018

Ghost images in Bardeen and ABG spacetimes

SCHEE, Jan a Zdeněk STUCHLÍK

Základní údaje

Originální název

Ghost images in Bardeen and ABG spacetimes

Autoři

SCHEE, Jan (203 Česká republika, garant, domácí) a Zdeněk STUCHLÍK (203 Česká republika, domácí)

Vydání

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, od s. 3722-3726, 5 s. 2018

Nakladatel

World Scientific Publishing

Další údaje

Jazyk

angličtina

Typ výsledku

Stať ve sborníku

Obor

10308 Astronomy

Stát vydavatele

Singapur

Utajení

není předmětem státního či obchodního tajemství

Forma vydání

tištěná verze "print"

Odkazy

URL

Kód RIV

RIV/47813059:19240/18:A0000367

Organizační jednotka

Filozoficko-přírodovědecká fakulta v Opavě

ISBN

978-981-322-659-3

DOI

http://dx.doi.org/10.1142/9789813226609_0487

Klíčová slova anglicky

regular spacetimes; null geodesics; ghost images

Příznaky

Mezinárodní význam, Recenzováno

Návaznosti

GB14-37086G, projekt VaV.

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

Anotace

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 a 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, s. 3722-3726. ISBN 978-981-322-659-3. Dostupné z: 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 a 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, s.~3722-3726. ISBN~978-981-322-659-3. Dostupné z: https://dx.doi.org/10.1142/9789813226609\_{}0487.

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