SCHEE, Jan and Zdeněk STUCHLÍK. Circular geodesic of Bardeen and Ayon-Beato-Garcia regular black-hole and no-horizon spacetimes. International Journal of Modern Physics D. SG - Singapurská republika, 2015, vol. 24, No 2, p. "1550020-1"-"1550020-31", 31 pp. ISSN 0218-2718. Available from: https://dx.doi.org/10.1142/S0218271815500200. |
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@article{46142, author = {Schee, Jan and Stuchlík, Zdeněk}, article_location = {SG - Singapurská republika}, article_number = {2}, doi = {http://dx.doi.org/10.1142/S0218271815500200}, keywords = {regular spacetimes; circular geodesics; profiled lines}, language = {eng}, issn = {0218-2718}, journal = {International Journal of Modern Physics D}, title = {Circular geodesic of Bardeen and Ayon-Beato-Garcia regular black-hole and no-horizon spacetimes}, url = {https://www.worldscientific.com/doi/10.1142/S0218271815500200}, volume = {24}, year = {2015} }
TY - JOUR ID - 46142 AU - Schee, Jan - Stuchlík, Zdeněk PY - 2015 TI - Circular geodesic of Bardeen and Ayon-Beato-Garcia regular black-hole and no-horizon spacetimes JF - International Journal of Modern Physics D VL - 24 IS - 2 SP - "1550020-1"-"1550020-31" EP - "1550020-1"-"1550020-31" SN - 02182718 KW - regular spacetimes KW - circular geodesics KW - profiled lines UR - https://www.worldscientific.com/doi/10.1142/S0218271815500200 N2 - In this paper, we study circular geodesic motion of test particles and photons in the Bardeen and Ayon-Beato-Garcia (ABG) geometry describing spherically symmetric regular black-hole or no-horizon spacetimes. While the Bardeen geometry is not exact solution of Einstein's equations, the ABG spacetime is related to self-gravitating charged sources governed by Einstein's gravity and nonlinear electrodynamics. They both are characterized by the mass parameter m and the charge parameter g. We demonstrate that in similarity to the Reissner-Nordstrom (RN) naked singularity spacetimes an anti-gravity static sphere should exist in all the no-horizon Bardeen and ABG solutions that can be surrounded by a Keplerian accretion disc. However, contrary to the RN nakedsingularity spacetimes, the ABG no-horizon spacetimes with parameter g/m > 2 can contain also an additional inner Keplerian disc hidden under the static anti-gravity sphere. Properties of the geodesic structure are reflected by simple ob ER -
SCHEE, Jan and Zdeněk STUCHLÍK. Circular geodesic of Bardeen and Ayon-Beato-Garcia regular black-hole and no-horizon spacetimes. \textit{International Journal of Modern Physics D}. SG - Singapurská republika, 2015, vol.~24, No~2, p.~''1550020-1''-''1550020-31'', 31 pp. ISSN~0218-2718. Available from: https://dx.doi.org/10.1142/S0218271815500200.
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