SCHEE, Jan and Zdeněk STUCHLÍK. Appearance of Keplerian discs orbiting on both sides of reflection-symmetric wormholes. Journal of Cosmology and Astroparticle Physics. GB - Spojené království Velké Británie a, 2022, vol. 2022, No 1, p. "054-1"-"054-22", 22 pp. ISSN 1475-7516. Available from: https://dx.doi.org/10.1088/1475-7516/2022/01/054.
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Basic information
Original name Appearance of Keplerian discs orbiting on both sides of reflection-symmetric wormholes
Authors SCHEE, Jan (203 Czech Republic, belonging to the institution) and Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution).
Edition Journal of Cosmology and Astroparticle Physics, GB - Spojené království Velké Británie a, 2022, 1475-7516.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
WWW URL
RIV identification code RIV/47813059:19630/22:A0000203
Organization unit Institute of physics in Opava
Doi http://dx.doi.org/10.1088/1475-7516/2022/01/054
UT WoS 000751303400008
Keywords in English absorption and radiation processes; Wormholes
Tags , RIV23
Tags Reviewed
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 26/3/2023 15:55.
Abstract
We construct optical appearance and profiled spectral lines of Keplerian discs with inner edge at the innermost circular geodesic located on both sides of reflection-symmetric Simpson-Visser wormholes, in dependence on their parameter and inclination angle of distant observers. We demonstrate significant differences in appearance of the discs on the our side and the other side of the Simpson-Visser wormholes. Large part of the other-side disc is always in dark region of the image of the disc orbiting on the our side, enabling thus a simple distinguishing in observations. The profiled spectral lines generated by the disc on the other side (our side) demonstrate strong (weak) dependence on the spacetime parameter, and weak (strong) dependence on the inclination angle; they have also different shape, giving thus other clues to clearly distinguish in observations reflection-symmetric wormholes as alternatives to black holes.
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