EDP Sciences
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Volume 398, Number 1, January IV 2003
Page(s) 377 - 383
Section Physical and chemical processes
DOI http://dx.doi.org/10.1051/0004-6361:20021621

A&A 398, 377-383 (2003)
DOI: 10.1051/0004-6361:20021621

Sidereal time analysis as a tool for the study of the space distribution of sources of gravitational waves

G. Paturel1 and Yu. V. Baryshev2, 3

1  CRAL-Observatoire de Lyon, 69561 Saint-Genis Laval Cedex, France
2  Astronomical Institute of the Saint-Petersburg University, 198504 St.-Petersburg, Russia
3  Isaac Newton Institute of Chile, St.-Petersburg Branch, Russia

(Received 15 July 2002 / Accepted 15 October 2002)

Gravitational wave (GW) detectors operating on a long time range can be used for the study of space distribution of sources of GW bursts or to put strong upper limits on the GW signal of a wide class of source candidates. For this purpose we propose here a sidereal time analysis to analyze the output signal of GW detectors. Using the characteristics of some existing detectors, we demonstrate the capability of the sidereal time analysis to give a clear signature of different localizations of GW sources: the Galactic Center, the Galactic Plane, the Supergalactic plane, the Great Attractor. On the contrary, a homogeneous 3D-distribution of GW sources gives a signal without features. In this paper we consider tensor gravitational waves with randomly oriented polarization. We consider GW detectors at fixed positions on the Earth, and a fixed orientation of the antenna.

Key words: gravitational waves -- methods: data analysis -- methods: statistical

Offprint request: G. Paturel, patu@obs.univ-lyon1.fr

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