Broad-band gravitational-wave pulses from binary neutron stars in eccentric orbits

Details Broad-band gravitational-wave pulses from binary neutron stars in eccentric orbits Broad-band gravitational-wave pulses from binary neutron stars in eccentric orbits

2001-11-04

arxiv.org/abs/astro-ph/0111066v2

Astron.Lett. 28 (2002) 143-149

Astronomy and Astrophysics

Astrophysics

17 pages, LATEX, 3 figures, Astronomy Letters, 2002, in press; typos corrected, refference added

Scientific paper

10.1134/1.1458343

Maximum gravitational wave emission from binary stars in eccentric orbits occurs near the periastron passage. We show that for a stationary distribution of binary neutron stars in the Galaxy, several high-eccentricity systems with orbital periods in the range from tens of minutes to several days should exist that emit broad gravitational-wave pulses in the frequency range 1-100 mHz. The space interferometer LISA could register the pulsed signal from these system at a signal-to-noise ratio level $S/N>5\sqrt{5}$ in the frequency range $\sim 10^{-3}-10^{-1}$ Hz during one-year observational time. Some detection algorithms for such a signal are discussed.

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