VAHEDI, Ali, Jafar KHODAGHOLIZADEH a Arman TURSUNOV. Aschenbach effect for spinning particles in Kerr-(A)dS spacetime. European Physical Journal C. New York (USA): SPRINGER, 2021, roč. 81, č. 4, s. "280-1"-"280-15", 15 s. ISSN 1434-6044. Dostupné z: https://dx.doi.org/10.1140/epjc/s10052-021-09081-0. |
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@article{59342, author = {Vahedi, Ali and Khodagholizadeh, Jafar and Tursunov, Arman}, article_location = {New York (USA)}, article_number = {4}, doi = {http://dx.doi.org/10.1140/epjc/s10052-021-09081-0}, keywords = {QUASI-PERIODIC OSCILLATIONS;BLACK-HOLES;COSMOLOGICAL CONSTANT;ORBITAL RESONANCE;KERR;MOTION;FIELD;MASS;ACCRETION;MOMENTUM}, language = {eng}, issn = {1434-6044}, journal = {European Physical Journal C}, title = {Aschenbach effect for spinning particles in Kerr-(A)dS spacetime}, url = {https://link.springer.com/article/10.1140/epjc/s10052-021-09081-0}, volume = {81}, year = {2021} }
TY - JOUR ID - 59342 AU - Vahedi, Ali - Khodagholizadeh, Jafar - Tursunov, Arman PY - 2021 TI - Aschenbach effect for spinning particles in Kerr-(A)dS spacetime JF - European Physical Journal C VL - 81 IS - 4 SP - "280-1"-"280-15" EP - "280-1"-"280-15" PB - SPRINGER SN - 14346044 KW - QUASI-PERIODIC OSCILLATIONS;BLACK-HOLES;COSMOLOGICAL CONSTANT;ORBITAL RESONANCE;KERR;MOTION;FIELD;MASS;ACCRETION;MOMENTUM UR - https://link.springer.com/article/10.1140/epjc/s10052-021-09081-0 N2 - A non-monotonic behavior of the velocity gradient of a test particle revolving around a rapidly rotating black hole in the locally non-rotating frame of reference is known as the Aschenbach effect. This effect can serve as a distinguishing signature of rapidly rotating black holes, being potentially useful for the measurements of the astrophysical black hole spins. This paper is the generalization of our previous research to the motion of spinning particles around a rotating black hole with non-zero cosmological constant. We show that both the particle's spin s and the cosmological constant Lambda modify the critical value of the black hole spin ac, for which the Aschenbach effect can be observed; ac can increase or decrease depending on the signs of s and Lambda. We also found that the particle's spin s can mimic the effect of the cosmological constant Lambda for a given ac, causing thus a discrepancy in the measurements of s, Lambda and ac in the Aschenbach effect. ER -
VAHEDI, Ali, Jafar KHODAGHOLIZADEH a Arman TURSUNOV. Aschenbach effect for spinning particles in Kerr-(A)dS spacetime. \textit{European Physical Journal C}. New York (USA): SPRINGER, 2021, roč.~81, č.~4, s.~''280-1''-''280-15'', 15 s. ISSN~1434-6044. Dostupné z: https://dx.doi.org/10.1140/epjc/s10052-021-09081-0.
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