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Solar Pulsations

Published online by Cambridge University Press:  30 March 2016

A. B. Severny ,
V. A. Kotov  and
T. T. Tsap
A. B. Severny
Affiliation:
Crimean Astrophysical Observatory, P. O. Nauchny, Crimea 334413, USSR
V. A. Kotov
Affiliation:
Crimean Astrophysical Observatory, P. O. Nauchny, Crimea 334413, USSR
T. T. Tsap
Affiliation:
Crimean Astrophysical Observatory, P. O. Nauchny, Crimea 334413, USSR

Extract

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Oscillations of the Sun with the period of 160m first observed in Crimea in 1974 and described in a set of papers by Kotov, Severny and Tsap (Severny et al. 1976, 1978; Kotov et al. 1978) were observed also by Brookes et al. (1976) and have been afterwards observed during the last three years in Stanford (Scherrer et al. 1979) and Kitt Peak (Snider et al. 1978). This fact excludes possible instrumental origin of the effect. Moreover, the phase coherence (after elimination of integer number of 160m-periods) between these four observatories makes the assumption of Earth atmospheric origin of the oscillations (Fossat and Grec 1978) very unlikely. Besides that, (1) the dependence of amplitude of oscillations on the phase of solar rotation and (2) slow, synchronous (at Crimea and Stanford) drift of the phase of maximum from year to year, pointing to a true period slightly higher 160m (160m 0.1), make the “telluric hypothesis” of the effect completely inconsistent.

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. 453 - 456
Copyright
Copyright © Cambridge University Press 1980

References

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