Ultralight boson cloud depletion in binary systems
Ultralight boson cloud depletion in binary systems
复制标题
双星系统中的超轻玻色子云耗尽
DOI:
10.1103/physrevd.99.104039
复制
发表时间:
2019
影响因子:
5
通讯作者:
Rosa, João Luís
中科院分区:
文献类型:
--
作者:
Berti, Emanuele;Brito, Richard;Macedo, Caio F. B.;Raposo, Guilherme;Rosa, João Luís
Ultralight scalars can extract rotational energy from astrophysical black holes through superradiant instabilities, forming macroscopic boson clouds. This process is most efficient when the Compton wavelength of the boson is comparable to the size of the black hole horizon, i.e., when the “gravitational fine structure constant”. If the black hole/cloud system is in a binary, tidal perturbations from the companion can produce resonant transitions between the energy levels of the cloud, depleting it by an amount that depends on the nature of the transition and on the parameters of the binary. Previous cloud depletion estimates considered binaries in circular orbit and made the approximation. Here we use black hole perturbation theory to compute instability rates and decay widths for generic values of, and we show that this leads to much larger cloud depletion estimates when. We also study eccentric binary orbits. We show that in this case resonances can occur at all harmonics of the orbital frequency, significantly extending the range of frequencies where cloud depletion may be observable with gravitational wave interferometers.
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DOI:
10.3847/1538-4357/aa7a05
发表时间:
2017
期刊:
The Astrophysical Journal
影响因子:
--
作者:
F. Dosopoulou;S. Naoz;V. Kalogera
通讯作者:
V. Kalogera
DOI:
--
发表时间:
2001
期刊:
影响因子:
--
作者:
J. A. Pons;E. Berti;L. Gualtieri;G. Miniutti;V. Ferrari
通讯作者:
V. Ferrari
影响因子:
5
作者:
S. D’Antonio;C. Palomba;P. Astone;S. Frasca;G. Intini;I. L. Rosa;P. Leaci;S. Mastrogiovanni;A. Miller;F. Muciaccia;O. Piccinni;A. Singhal
通讯作者:
S. D’Antonio;C. Palomba;P. Astone;S. Frasca;G. Intini;I. L. Rosa;P. Leaci;S. Mastrogiovanni;A. Miller;F. Muciaccia;O. Piccinni;A. Singhal
影响因子:
3.5
作者:
E. Berti
通讯作者:
E. Berti
影响因子:
0.6
作者:
Brinkmann, Andreas
通讯作者:
Brinkmann, Andreas