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, 31 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)
Abstract
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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