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  Searching for Gravitational Waves from Compact Binaries with Precessing Spins

Harry, I., Privitera, S., Bohé, A., & Buonanno, A. (2016). Searching for Gravitational Waves from Compact Binaries with Precessing Spins. Physical Review D, 94: 024012. doi:10.1103/PhysRevD.94.024012.

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Datensatz-Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-1837-F Versions-Permalink: http://hdl.handle.net/21.11116/0000-0000-FD35-8
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1603.02444.pdf (Preprint), 2MB
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 Urheber:
Harry, Ian1, Autor              
Privitera, Stephen1, Autor              
Bohé, Alejandro1, Autor              
Buonanno, Alessandra1, Autor              
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:1933290              

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Schlagwörter: General Relativity and Quantum Cosmology, gr-qc,Astrophysics, Cosmology and Extragalactic Astrophysics, astro-ph.CO, Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE
 Zusammenfassung: Current searches for gravitational waves from compact-object binaries with the LIGO and Virgo observatories employ waveform models with spins aligned (or anti-aligned) with the orbital angular momentum. Here, we derive a new statistic to search for compact objects carrying generic (precessing) spins. Applying this statistic, we construct banks of both aligned- and generic-spin templates for binary black holes and neutron-star--black-hole binaries, and compare the effectualness of these banks towards simulated populations of generic-spin systems. We then use these banks in a pipeline analysis of Gaussian noise to measure the increase in background incurred by using generic- instead of aligned-spin banks. Although the generic-spin banks have a factor of ten to twenty more templates than the aligned-spin banks, we find an overall improvement in signal recovery at fixed false-alarm rate for systems with high-mass ratio and highly precessing spins ---up to 60\% for neutron-star--black-hole mergers. This gain in sensitivity comes at a small loss of sensitivity ($\lesssim$4\%) for systems that are already well-covered by aligned-spin templates. Since the observation of even a single binary merger with misalinged spins could provide unique astrophysical insights into the formation of these sources, we recommend that the method described here be developed further to mount a viable search for generic-spin binary mergers in LIGO/Virgo data.

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 Datum: 2016-03-0820162016
 Publikationsstatus: Im Druck publiziert
 Seiten: 20 pages, 8 figures
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 Identifikatoren: arXiv: 1603.02444
URI: http://arxiv.org/abs/1603.02444
DOI: 10.1103/PhysRevD.94.024012
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Titel: Physical Review D
  Andere : Phys. Rev. D.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Lancaster, Pa. : American Physical Society
Seiten: - Band / Heft: 94 Artikelnummer: 024012 Start- / Endseite: - Identifikator: ISSN: 0556-2821
CoNE: http://pubman.mpdl.mpg.de/cone/journals/resource/111088197762258