Issue |
A&A
Volume 398, Number 1, January IV 2003
|
|
---|---|---|
Page(s) | 377 - 383 | |
Section | Astronomical instrumentation | |
DOI | https://doi.org/10.1051/0004-6361:20021621 | |
Published online | 14 January 2003 |
Sidereal time analysis as a tool for the study of the space distribution of sources of gravitational waves
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
Corresponding author: G. Paturel, patu@obs.univ-lyon1.fr
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
© ESO, 2003
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