0485121 - ASÚ 2018 RIV US eng J - Článek v odborném periodiku
Lukes-Gerakopoulos, Georgios - Harms, E. - Bernuzzi, S. - Nagar, A.
Spinning test body orbiting around a Kerr black hole: Circular dynamics and gravitational-wave fluxes.
Physical Review D. Roč. 96, č. 6 (2017), 064051/1-064051/13. ISSN 2470-0010. E-ISSN 2470-0029
Grant CEP: GA ČR(CZ) GJ17-06962Y
Institucionální podpora: RVO:67985815
Klíčová slova: general-relativity * test particles * conserved quantities
Obor OECD: Astronomy (including astrophysics,space science)
Impakt faktor: 4.394, rok: 2017 ; AIS: 1.038, rok: 2017
DOI: https://doi.org/10.1103/PhysRevD.96.064051

In the present work we study the rotating Kerr black hole. We consider the Mathisson-Papapetrou formalism under three different spin-supplementary conditions (SSC), the Tulczyjew SSC, the Pirani SSC, and the Ohashi-Kyrian-Semerak SSC, and analyze the different circular dynamics in terms of the innermost stable circular orbit (ISCO) shifts and the frequency parameter x (M Omega)(2/3,) where Omega is the orbital frequency and M is the Kerr black hole mass. Then, we solve numerically the inhomogeneous (2 + 1) Teukolsky equation to contrast the asymptotic gravitational wave fluxes for the three cases.
Trvalý link: http://hdl.handle.net/11104/0280209