Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975phrvd..11..253p&link_type=abstract
Physical Review D - Particles and Fields, 3rd Series, vol. 11, Jan. 15, 1975, p. 253-256.
Astronomy and Astrophysics
Astronomy
1
Astronomical Models, Gravitational Waves, Orbital Mechanics, Planetary Gravitation, Stellar Gravitation, Two Body Problem, Angular Momentum, Circular Orbits, Extrasolar Planets, Gravitational Effects, Orbit Decay, Planetary Radiation, Precession, Wave Interaction
Scientific paper
A star-planet system is considered in which the planet's circular orbit shows a 'precession of the nodes' caused by a mass quadrupole moment in the star. The radiation-reaction effects of the gravitational waves emitted by the system are calculated. Besides the well-known gradual fall of the planet towards the star, a change is found in the angle between the equatorial plane of the star and the orbital plane of the planet. For oblate stars the angle decreases to zero; for prolate stars it tends toward one-half pi.
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