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  Can we measure individual black-hole spins from gravitational-wave observations?

Pürrer, M., Hannam, M., & Ohme, F. (2016). Can we measure individual black-hole spins from gravitational-wave observations? Physical Review D, 93: 084042. doi:10.1103/PhysRevD.93.084042.

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Datensatz-Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-12ED-B Versions-Permalink: http://hdl.handle.net/11858/00-001M-0000-002E-87B6-E
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1512.04955.pdf (Preprint), 8MB
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 Urheber:
Pürrer, Michael1, Autor              
Hannam, Mark, Autor
Ohme, Frank2, Autor              
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:1933290              
2Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:24013              

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Schlagwörter: General Relativity and Quantum Cosmology, gr-qc, Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE
 Zusammenfassung: Measurements of black-hole spins from gravitational-wave observations of black-hole binaries with ground-based detectors are expected to be hampered by partial degeneracies in the gravitational-wave phasing: between the two component spins, and between the spins and the binary's mass ratio, at least for signals that are dominated by the binary's inspiral. Through the merger and ringdown, however, a different set of degeneracies apply. This suggests the possibility that, if the inspiral, merger and ringdown are all within the sensitive frequency band of a detector, we may be able to break these degeneracies and more accurately measure both spins. In this work we investigate our ability to measure individual spins for non-precessing binaries, for a range of configurations and signal strengths, and conclude that in general the spin of the larger black hole will be measurable (at best) with observations from Advanced LIGO and Virgo. This implies that in many applications waveform models parameterized by only one \emph{effective spin} will be sufficient. Our work does not consider precessing binaries or sub-dominant harmonics, although we provide some arguments why we expect that these will not qualitatively change our conclusions.

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 Datum: 2015-12-152016
 Publikationsstatus: Im Druck publiziert
 Seiten: 13 pages, 10 figures
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 Identifikatoren: arXiv: 1512.04955
DOI: 10.1103/PhysRevD.93.084042
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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: 93 Artikelnummer: 084042 Start- / Endseite: - Identifikator: ISSN: 0556-2821
CoNE: http://pubman.mpdl.mpg.de/cone/journals/resource/111088197762258