SCHEE, Jan a Zdeněk STUCHLÍK. Optical effects related to Keplerian discs orbiting Kehagias-Sfetsos naked singularities. Classical and Quantum Gravity. GB - Spojené království Velké Británie a, 2014, roč. 31, č. 19, s. "195013 - 1"-"195013 - 50", 50 s. ISSN 0264-9381. Dostupné z: https://dx.doi.org/10.1088/0264-9381/31/19/195013. |
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@article{46043, author = {Schee, Jan and Stuchlík, Zdeněk}, article_location = {GB - Spojené království Velké Británie a}, article_number = {19}, doi = {http://dx.doi.org/10.1088/0264-9381/31/19/195013}, keywords = {Hořava gravity; optical phenomena; Keplerian disc}, language = {eng}, issn = {0264-9381}, journal = {Classical and Quantum Gravity}, title = {Optical effects related to Keplerian discs orbiting Kehagias-Sfetsos naked singularities}, url = {https://iopscience.iop.org/article/10.1088/0264-9381/31/19/195013}, volume = {31}, year = {2014} }
TY - JOUR ID - 46043 AU - Schee, Jan - Stuchlík, Zdeněk PY - 2014 TI - Optical effects related to Keplerian discs orbiting Kehagias-Sfetsos naked singularities JF - Classical and Quantum Gravity VL - 31 IS - 19 SP - "195013 - 1"-"195013 - 50" EP - "195013 - 1"-"195013 - 50" SN - 02649381 KW - Hořava gravity KW - optical phenomena KW - Keplerian disc UR - https://iopscience.iop.org/article/10.1088/0264-9381/31/19/195013 N2 - We demonstrate possible optical signatures of the Kehagias-Sfetsos (KS) naked singularity spacetimes representing a spherically symmetric vacuum solution of the modified Horava gravity. In such spacetimes, accretion structures significantly different from those present in standard black hole spacetimes occur due to the 'antigravity' effect, which causes an internal static sphere surrounded by Keplerian discs. We focus our attention on the optical effects related to the Keplerian accretion discs, constructing the optical appearance of the Keplerian discs, the spectral continuum due to their thermal radiation, and the spectral profiled lines generated in the innermost parts of such discs. The KS naked singularity signature is strongly encoded in the characteristics of predicted optical effects, especially in cases where the spectral continuum and spectral lines are profiled by the strong gravity of the spacetimes due to the vanishing region of the angular velocity gradient influencing th ER -
SCHEE, Jan a Zdeněk STUCHLÍK. Optical effects related to Keplerian discs orbiting Kehagias-Sfetsos naked singularities. \textit{Classical and Quantum Gravity}. GB - Spojené království Velké Británie a, 2014, roč.~31, č.~19, s.~''195013 - 1''-''195013 - 50'', 50 s. ISSN~0264-9381. Dostupné z: https://dx.doi.org/10.1088/0264-9381/31/19/195013.
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