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  An Einstein@home search for continuous gravitational waves from Cassiopeia A

Zhu, S. J., Papa, M. A., Eggenstein, H.-B., Prix, R., Wette, K., Allen, B., et al. (2016). An Einstein@home search for continuous gravitational waves from Cassiopeia A. Physical Review D, 94: 082008. doi:10.1103/PhysRevD.94.082008.

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Datensatz-Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-5D00-C Versions-Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-5D01-A
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 Urheber:
Zhu, Sylvia J.1, Autor
Papa, Maria Alessandra2, Autor              
Eggenstein, Heinz-Bernd2, Autor
Prix, Reinhard1, Autor              
Wette, Karl1, Autor              
Allen, Bruce1, Autor              
Bock, Oliver1, Autor              
Keitel, David3, Autor              
Krishnan, Badri4, Autor              
Machenschalk, Bernd1, Autor              
Shaltev, Miroslav1, Autor              
Siemens, Xavier, Autor
Affiliations:
1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, escidoc:24011              
2Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:1933290              
3Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, escidoc:24010              
4Astrophysical 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, Astrophysics, Instrumentation and Methods for Astrophysics, astro-ph.IM
 Zusammenfassung: We report the results of a directed search for continuous gravitational-wave emission in a broad frequency range (between 50 and 1000 Hz) from the central compact object of the supernova remnant Cassiopeia A (Cas A). The data comes from the sixth science run of LIGO and the search is performed on the volunteer distributed computing network Einstein@Home. We find no significant signal candidate, and set the most constraining upper limits to date on the gravitational-wave emission from Cas A, which beat the indirect age-based upper limit across the entire search range. At around 170 Hz (the most sensitive frequency range), we set 90% confidence upper limits on the gravitational wave amplitude $h_0$ of $\sim\!\!~2.9\times 10^{-25}$, roughly twice as constraining as the upper limits from previous searches on Cas A. The upper limits can also be expressed as constraints on the ellipticity of Cas A; with a few reasonable assumptions, we show that at gravitational-wave frequencies greater than 300~Hz, we can exclude an ellipticity of $\gtrsim\!\!~10^{-5}$.

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 Datum: 2016-08-262016-09-272016
 Publikationsstatus: Im Druck publiziert
 Seiten: 29 pages, 7 figures, 3 tables
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: arXiv: 1608.07589
DOI: 10.1103/PhysRevD.94.082008
URI: http://arxiv.org/abs/1608.07589
 Art des Abschluß: -

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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: 082008 Start- / Endseite: - Identifikator: ISSN: 0556-2821
CoNE: http://pubman.mpdl.mpg.de/cone/journals/resource/111088197762258