Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...231...61e&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 231, no. 1, May 1990, p. 61-72. Research supported by the Japan-U.S. Cooperati
Astronomy and Astrophysics
Astrophysics
3
Binary Stars, Gravitational Waves, Stellar Evolution, Stellar Gravitation, Stellar Rotation, Gravitational Effects, Rotating Matter
Scientific paper
Equilibrium sequences of rotating thin disks are used here to estimate the gravitational radiation reaction effect of nonpoint mass and nonellipsoid systems. The evolution caused by the radiation is followed by applying the quadrupole formula to the equilibrium configurations of the system. When the initial configuration is a Jacobi disk or a dumbbell disk, the system finally settles down to a Maclaurin disk due to loss of angular momentum. When the initial state is a binary disk, the system reaches a limiting configuration of equilibrium solutions beyond which no equilibrium states can exist. The system continues to lose its angular momentum and, as a result, the system will change its shape considerably on a dynamical time scale and will collide. The time profile of the gravitational radiation will show a burstlike feature and its frequency will not become extremely high.
Eriguchi Yoshiharu
Futamase Toshifumi
Hachisu Izumi
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