Search for monochromatic sources with the GEOGRAV gravitational-wave antenna

Astronomy and Astrophysics – Astronomy

Scientific paper

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Doppler Effect, Gravitational Wave Antennas, Magellanic Clouds, Milky Way Galaxy, Neutron Stars, Astronomical Spectroscopy, Black Holes (Astronomy), Galactic Nuclei, Gravitational Waves, Pulsars, Signal To Noise Ratios

Scientific paper

The data of 46 months of the GEOGRAV gravitational-wave antenna are analyzed to search for monochromatic Doppler-shifted signals from rotating neutron stars, in the frequency band (856.2 divided by 859.2) Hz. Two different methods were used. With the first, the gravitational radiation from the whole sky is investigated and a limit of h equal to or less than 1.10 to the -21st is found. With the second method only the radiation from a single source is searched. The Galactic Center and the Large Magellanic Cloud are considered as sources and the limit of h equal to or less than 6.10 to the -22nd is found.

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