Detection and localization of continuous gravitational waves with pulsar timing arrays: The role of pulsar terms
Detection and localization of continuous gravitational waves with pulsar timing arrays: The role of pulsar terms
复制标题
用脉冲星定时阵列探测和定位连续引力波:脉冲星项的作用
DOI:
10.1093/mnras/stw1446
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发表时间:
2016-06
影响因子:
4.8
通讯作者:
Manchester R. N.
中科院分区:
文献类型:
--
作者:
Zhu X. -J.;Wen L.;Xiong J.;Xu Y.;Wang Y.;Mohanty S. D.;Hobbs G.;Manchester R. N.
A pulsar timing array is a Galactic-scale detector of nanohertz gravitational waves (GWs). Its target signals contain two components: the `Earth term' and the `pulsar term' corresponding to GWs incident on the Earth and pulsar respectively. In this work we present a Frequentist method for the detection and localization of continuous waves that takes into account the pulsar term and is significantly faster than existing methods. We investigate the role of pulsar terms by comparing a full-signal search with an Earth-term-only search for non-evolving black hole binaries. By applying the method to synthetic data sets, we find that (i) a full-signal search can slightly improve the detection probability (by about five percent); (ii) sky localization is biased if only Earth terms are searched for and the inclusion of pulsar terms is critical to remove such a bias; (iii) in the case of strong detections (with signal-to-noise ratio $\gtrsim$ 30), it may be possible to improve pulsar distance estimation through GW measurements.
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影响因子:
4.9
作者:
Arzoumanian, Zaven;Brazier, Adam;Zhu, Weiwei
通讯作者:
Zhu, Weiwei
影响因子:
4.8
作者:
S. Babak;A. Petiteau;A. Sesana;P. Brem;P. Rosado;S. Taylor;A. Lassus;J. Hessels;C. Bassa;M. Burgay;R. N. Caballero;D. Champion;I. Cognard;G. Desvignes;J. Gair;L. Guillemot;G. Janssen;R. Karuppusamy;M. Kramer;P. Lazarus;K. Lee;L. Lentati;Kuo Liu;C. Mingarelli;S. Osłowski;D. Perrodin;A. Possenti;M. Purver;S. Sanidas;R. Smits;B. Stappers;G. Theureau;C. Tiburzi;R. V. Haasteren;A. Vecchio;J. Verbiest
通讯作者:
S. Babak;A. Petiteau;A. Sesana;P. Brem;P. Rosado;S. Taylor;A. Lassus;J. Hessels;C. Bassa;M. Burgay;R. N. Caballero;D. Champion;I. Cognard;G. Desvignes;J. Gair;L. Guillemot;G. Janssen;R. Karuppusamy;M. Kramer;P. Lazarus;K. Lee;L. Lentati;Kuo Liu;C. Mingarelli;S. Osłowski;D. Perrodin;A. Possenti;M. Purver;S. Sanidas;R. Smits;B. Stappers;G. Theureau;C. Tiburzi;R. V. Haasteren;A. Vecchio;J. Verbiest
DOI:
10.1086/383020
发表时间:
2003-10
期刊:
--
影响因子:
--
作者:
F. Jenet;A. Lommen;S. Larson;L. Wen
通讯作者:
F. Jenet;A. Lommen;S. Larson;L. Wen
DOI:
10.1086/375187
发表时间:
2002-11
期刊:
The Astrophysical Journal
影响因子:
--
作者:
J. Wyithe;A. Loeb;A. Loeb
通讯作者:
J. Wyithe;A. Loeb;A. Loeb
影响因子:
5
作者:
S. Babak;A. Sesana
通讯作者:
S. Babak;A. Sesana