Stochastic gravitational wave background anisotropies in the mHz band: astrophysical dependencies
Stochastic gravitational wave background anisotropies in the mHz band: astrophysical dependencies
复制标题
mHz 波段随机引力波背景各向异性:天体物理依赖性
DOI:
--
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发表时间:
2019
影响因子:
--
通讯作者:
J. Uzan
中科院分区:
文献类型:
--
作者:
G. Cusin;I. Dvorkin;C. Pitrou;J. Uzan
We show that the anisotropies of the astrophysical stochastic gravitational wave background in the mHz band have a strong dependence on the modelling of galactic and sub-galactic physics. We explore a wide range of self-consistent astrophysical models for stellar evolution and for the distribution of orbital parameters, all calibrated such that they predict the same number of resolved mergers to fit the number of detections during LIGO/Virgo O1 + O2 observations runs. We show that different physical choices for the process of black hole (BH) collapse and cut-off in the BH mass distribution give fractional differences in the angular power spectrum of anisotropies of up to 50 per cent on all angular scales. We also point out that the astrophysical information which can be extracted from anisotropies is complementary to the isotropic background and individual mergers. These results underline the interest in the anisotropies of the stochastic gravitational wave background as a new and potentially rich field of research, at the cross-road between astrophysics and cosmology.
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DOI:
10.1017/s1743921314004657
发表时间:
2012-08
期刊:
Proceedings of the International Astronomical Union
影响因子:
--
作者:
J. Vink
通讯作者:
J. Vink
影响因子:
8.6
作者:
Ajith, P.;Hannam, M.;Seiler, J.
通讯作者:
Seiler, J.
影响因子:
2.1
作者:
Duncan A. Brown;K. Vahi;M. Taufer;Von Welch;E. Deelman;Lorena A. Barba;George K. Thiruvathukal
通讯作者:
Duncan A. Brown;K. Vahi;M. Taufer;Von Welch;E. Deelman;Lorena A. Barba;George K. Thiruvathukal
影响因子:
18.1
作者:
N. Christensen
通讯作者:
N. Christensen