Convergence of Fourier-domain templates for inspiraling eccentric compact binaries
Convergence of Fourier-domain templates for inspiraling eccentric compact binaries
复制标题
激励偏心致密双星的傅里叶域模板的收敛性
DOI:
10.1103/physrevd.100.064006
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发表时间:
2019
影响因子:
5
通讯作者:
Nishizawa, Atsushi
中科院分区:
文献类型:
--
作者:
Tanay, Sashwat;Klein, Antoine;Berti, Emanuele;Nishizawa, Atsushi
The space-based detector LISA may observe gravitational waves from the early inspiral of stellar-mass black hole binaries, some of which could have significant eccentricity. Current gravitational waveform templates are only valid for small orbital velocities (i.e., in a post-Newtonian expansion) and small initial eccentricity(“post-circular” expansion). We conventionally defineas the eccentricity corresponding to an orbital frequency of 5 mHz, and we study the convergence properties of frequency-domain inspiral templates that are accurate up to 2PN and orderin eccentricity [S. Tanay, M. Haney, and A. Gopakumar, Phys. Rev. D93, 064031 (2016)]. We compute the so-called “unfaithfulness” between the full template and “reduced” templates obtained by dropping some terms in the phasing series; we investigate the conditions under which systematic errors are negligible with respect to statistical errors, and we study the convergence properties of statistical errors. In general, eccentric waveforms lead to larger statistical errors than circular waveforms due to correlations between the parameters, but the error estimates do not change significantly as long as we include terms of orderor higher in the phasing.
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DOI:
10.3847/2041-8213/aa9bf6
发表时间:
2017-09
期刊:
The Astrophysical Journal Letters
影响因子:
--
作者:
M. Fishbach;D. Holz
通讯作者:
M. Fishbach;D. Holz
影响因子:
5
作者:
D. Gerosa;Sizheng Ma;Ka-wah Wong;E. Berti;R. O’Shaughnessy;Yanbei Chen;K. Belczynski
通讯作者:
D. Gerosa;Sizheng Ma;Ka-wah Wong;E. Berti;R. O’Shaughnessy;Yanbei Chen;K. Belczynski
影响因子:
3.5
作者:
T. Damour;A. Gopakumar;B. Iyer
通讯作者:
T. Damour;A. Gopakumar;B. Iyer
影响因子:
5
作者:
K. Martel;E. Poisson
通讯作者:
E. Poisson
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
B. Mikóczi;P. Forgács;M. Vasúth
通讯作者:
M. Vasúth