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Theoretical Review of Secular Instabilities in the Sun

Published online by Cambridge University Press:  30 March 2016

M. Gabriel
M. Gabriel*
Affiliation:
Institut d’Astrophysique de l’Université de Liège

Extract

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In this review we discuss the problems raised by the discovery that the sun was, in the past, unstable towards non-radial oscillations.

In 1972, Fowler (1972), in an attempt to explain the low-neutrino flux measured in Davis’ experiment (now 1.6 snu, while the standard solar model predicts 4.4 snu) suggested that the sun could have undergone, some 10 years ago, a change in structure because of sudden mixing of the inner core. During the same year Dilke and Gough (1972) suggested the sun is unstable to low-order gravity modes (g+ modes) of non-radial oscillation and that the mixing is triggered when the amplitude of the oscillation becomes large enough.

Type
Joint Discussion
Information
Highlights of Astronomy , Volume 5: Highlights of Astronomy. As presented at the XVIIth General Assembly of the IAU, 1979 , 1980 , pp. 441 - 444
Copyright
Copyright © Cambridge University Press 1980

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