• Medientyp: E-Artikel; Sonstige Veröffentlichung
  • Titel: First all-sky upper limits from LIGO on the strength of periodic gravitational waves using the Hough transform
  • Beteiligte: Abbott, B. [Verfasser:in]; Abbott, R. [Verfasser:in]; Adhikari, R. [Verfasser:in]; Ageev, A. [Verfasser:in]; Agresti, J. [Verfasser:in]; Allen, B. [Verfasser:in]; Allen, J. [Verfasser:in]; Amin, R. [Verfasser:in]; Anderson, S.B. [Verfasser:in]; Anderson, W.G. [Verfasser:in]; Araya, M. [Verfasser:in]; Armandula, H. [Verfasser:in]; Ashley, M. [Verfasser:in]; Asiri, F. [Verfasser:in]; Aufmuth, P. [Verfasser:in]; Aulbert, C. [Verfasser:in]; Babak, S. [Verfasser:in]; Balasubramanian, R. [Verfasser:in]; Ballmer, S. [Verfasser:in]; Barish, B.C. [Verfasser:in]; Barker, C. [Verfasser:in]; Barker, D. [Verfasser:in]; Barnes, M. [Verfasser:in]; Barr, B. [Verfasser:in]; [...]
  • Erschienen: College Park, MD : American Physical Society, 2005
  • Erschienen in: Physical Review D - Particles, Fields, Gravitation and Cosmology 72 (2005), Nr. 10 ; Physical Review D - Particles, Fields, Gravitation and Cosmology
  • Ausgabe: published Version
  • Sprache: Englisch
  • DOI: https://doi.org/10.15488/12061; https://doi.org/10.1103/PhysRevD.72.102004
  • ISSN: 1550-7998
  • Schlagwörter: emission ; search ; precessing neutron-stars ; detector ; interferometer ; geo-600
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  • Beschreibung: We perform a wide parameter-space search for continuous gravitational waves over the whole sky and over a large range of values of the frequency and the first spin-down parameter. Our search method is based on the Hough transform, which is a semicoherent, computationally efficient, and robust pattern recognition technique. We apply this technique to data from the second science run of the LIGO detectors and our final results are all-sky upper limits on the strength of gravitational waves emitted by unknown isolated spinning neutron stars on a set of narrow frequency bands in the range 200-400 Hz. The best upper limit on the gravitational-wave strain amplitude that we obtain in this frequency range is 4.43×10-23. © 2005 The American Physical Society.
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