Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1994-09-27
Phys.Rev.Lett.72:1314-1317,1994
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
16 pages, LaTeX with REVTEX macros, reprints available - send mailing address to scott@eagle.drexel.edu. Published: PRL 72, 13
Scientific paper
10.1103/PhysRevLett.72.1314
We present the first calculations of the gravitational radiation produced by nonaxisymmetric dynamical instability in a rapidly rotating compact star. The star deforms into a bar shape, shedding $\sim 4\%$ of its mass and $\sim 17\%$ of its angular momentum. The gravitational radiation is calculated in the quadrupole approximation. For a mass $M \sim 1.4$ M$_{\odot}$ and radius $R \sim 10$ km, the gravitational waves have frequency $\sim 4$ kHz and amplitude $h \sim 2 \times 10^{-22}$ at the distance of the Virgo Cluster. They carry off energy $\Delta E/M \sim 0.1\%$ and radiate angular momentum $\Delta J/J \sim 0.7\%$.
Centrella Joan M.
Houser Janet L.
Smith Sean C.
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