Long period solar oscillations

Details Long period solar oscillations Long period solar oscillations

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988esasp.286..339v&link_type=abstract

In ESA, Seismology of the Sun and Sun-Like Stars p 339-351 (SEE N89-25819 19-92)

Physics

6

Solar Activity Effects, Solar Cycles, Solar Oscillations, Sun, Asymptotic Properties, Data Acquisition, Gravitational Effects, Red Shift

Scientific paper

Several years of high quality optical resonant scattering data from full disk solar observations are analyzed to demonstrate the essential stability of the apparatus necessary to extract signals of periods hours, days, or possibly years. The variation of the gravitational red shift is examined; the 13 day signal occasioned by solar surface inhomogeneities is demonstrated; and the 160 min signal in these data is shown to be an artifact. The g modes extracted from these data are shown to be stable in period over the interval 1981 to 1987. Interpreted in terms of the Tassoul asymptotic relation a value of To = 41.2. min is found, which favors a solar model with mixing.

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