Phys. Rev. Lett. 72, 1314–1317 (1994)Gravitational radiation from nonaxisymmetric instability in a rotating starReceived 2 July 1993; published in the issue dated 28 February 1994 We present the first calculations of the gravitational radiation produced by nonaxisymmetric dynamical instability in rapidly rotating compact star. The star deforms into a bar shape, shedding ∼4% of its mass and ∼17% of its angular momentum. The gravitational radiation is calculated in the quadrupole approximation. For a mass M∼1.4M⊙ and radius R∼10 km, the gravitational waves have frequency ∼4 kHz and amplitude h∼2×10-22 at the distance of the Virgo Cluster. They carry off energy ΔE/M∼0.1% and radiate angular momentum ΔJ/J∼0.7%. © 1994 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.72.1314
DOI:
10.1103/PhysRevLett.72.1314
PACS:
04.30.Db, 04.25.Dm, 97.60.-s
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