Search for periodic gravitational radiation with the ALLEGRO gravitational wave detector
msra(2000)
摘要
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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关键词
gravitational radiation,quantum cosmology,neutron star,galactic center,gravitational wave detector
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