dc.creator | Gerosa, D | |
dc.creator | Sperhake, Ulrich | |
dc.creator | Vošmera, J | |
dc.date.accessioned | 2017-02-06 | |
dc.date.accessioned | 2018-11-24T23:19:59Z | |
dc.date.available | 2017-05-02T13:07:10Z | |
dc.date.available | 2018-11-24T23:19:59Z | |
dc.date.issued | 2017-03-23 | |
dc.identifier | https://www.repository.cam.ac.uk/handle/1810/263946 | |
dc.identifier.uri | http://repository.aust.edu.ng/xmlui/handle/123456789/3522 | |
dc.description.abstract | We analyze the inspiral dynamics of equal-mass precessing black-hole binaries using multi-timescale techniques. The orbit-averaged post-Newtonian evolutionary equations admit two constants of motion in the equal-mass limit, namely the magnitude of the total spin S and the effective spin ξ. This feature makes the entire dynamics qualitatively different compared to the generic unequal-mass case, where only ξ is constant while the variable S parametrizes the precession dynamics. For fixed individual masses and spin magnitudes, an equal-mass black-hole inspiral is uniquely characterized by the two parameters : these two numbers completely determine the entire evolution under the effect of radiation reaction. In particular, for equal-mass binaries we find that (i) the black-hole binary spin morphology is constant throughout the inspiral, and that (ii) the precessional motion of the two black-hole spins about the total spin takes place on a longer timescale than the precession of the total spin and the orbital plane about the total angular momentum. | |
dc.language | en | |
dc.publisher | Institute of Physics | |
dc.publisher | Classical and Quantum Gravity | |
dc.rights | http://creativecommons.org/licenses/by/4.0/ | |
dc.rights | http://creativecommons.org/licenses/by/4.0/ | |
dc.rights | http://creativecommons.org/licenses/by/4.0/ | |
dc.rights | Attribution 4.0 International | |
dc.rights | Attribution 4.0 International | |
dc.rights | Attribution 4.0 International | |
dc.subject | black holes | |
dc.subject | gravitational waves | |
dc.subject | post-Newtonian theory | |
dc.title | On the equal-mass limit of precessing black-hole binaries | |
dc.type | Article | |