Solar ellipticity fluctuations yield no evidence of g-modes

Details Solar ellipticity fluctuations yield no evidence of g-modes Solar ellipticity fluctuations yield no evidence of g-modes

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986natur.319..128k&link_type=abstract

Nature (ISSN 0028-0836), vol. 319, Jan. 9, 1986, p. 128-131. NSF-supported research.

Physics

10

Solar Oblateness, Solar Oscillations, Ellipticity, Power Spectra

Scientific paper

Although there have been several claims for the detection of solar g-modes with periods between 2 and 10 hours and although the present sensitivity of the Princeton Solar Distortion Telescope should allow these low frequency modes to be observed, solar oblateness data from the summers of 1983 and 1984 show no evidence of such oscillations with periods between 1 and 5 hours. In about 250 days (nearly 1,000 hours) of observations, the authors find no evidence for significant spectral power associated with g-modes. In particular, there is no evidence of a 160.01-min period solar oscillation.

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