Gravitational wave excitation of the 160-min solar oscillation?

Details Gravitational wave excitation of the 160-min solar oscillation? Gravitational wave excitation of the 160-min solar oscillation?

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984natur.308..164k&link_type=abstract

Nature (ISSN 0028-0836), vol. 308, March 8, 1984, p. 164, 165.

Astronomy and Astrophysics

Astronomy

6

Binary Stars, Gravitational Waves, Solar Oscillations, Wave Excitation, Doppler Effect, Gamma Ray Astronomy, Solar Velocity

Scientific paper

A calculation of the solar cross-section for gravitational wave excitation was performed to examine the possibility that a distant binary star system is the cause of an observed 160 min solar oscillation. Eigenmodes near the 160 min periods were computed, noting that gravitational waves are of helicity 2 and can only couple with l = 2 distortions. A decay time is derived for gravitational waves in the sun. Necessary masses are characterized for distant objects which could produce the necessary energy in the calculated gravity waves. The gamma-ray source Geminga is eliminated as a source for the oscillations. Any exciting source would, in fact, have to be within the solar neighborhood to produce the observed effects.

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