Search for periodic gravitational radiation with the ALLEGRO gravitational wave detector

Details Search for periodic gravitational radiation with the ALLEGRO gravitational wave detector Search for periodic gravitational radiation with the ALLEGRO gravitational wave detector

2000-07-11

arxiv.org/abs/gr-qc/0007023v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

14 pages, 10 figures. Submitted to PRD

Scientific paper

We describe the search for a continuous signal of gravitational radiation from a rotating neutron star in the data taken by the ALLEGRO gravitational wave detector in early 1994. Since ALLEGRO is sensitive at frequencies near 1 kHz, only neutron stars with spin periods near 2 ms are potential sources. There are no known sources of this typ e for ALLEGRO, so we directed the search towards both the galactic center and the globular clus ter 47 Tucanae. The analysis puts a constraint of roughly $8 \times 10^{-24}$ at frequencies near 1 kHz on the gravitational strain emitted from pulsar spin-down in either 47 Tucanae or the galactic center.

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