Further experimental evidence of the 13 day solar periodicity

Bibcode
1984MmSAI..55..353I
Isaak, G. R.; van der Raay, H. B.; Palle, P. L.; Cortes, T. R.
Referencia bibliográfica

European Physical Society, Ministero della Pubblica Istruzione, and Universita di Catania, EPS Study Conference on Oscillations as a Probe of the Sun's Interior, Catania, Italy, June 20-24, 1983 Società Astronomica Italiana, Memorie (ISSN 0037-8720), vol. 55, no. 1-2, 1984, p. 353-356. Research supported by the Science and Engineering Research Council.

Fecha de publicación:
6
1984
Número de autores
4
Número de autores del IAC
2
Número de citas
0
Número de citas referidas
0
Descripción
Extensive solar data obtained over the period May to August 1982 are analyzed to show the continued existence, over a six-year period, of a 13-day velocity signal of 6 m/s amplitude. Mean daily velocity signals are shown with a superimposed best-fit sine wave, and the power spectrum obtained from that fit is presented. Data comparing measured and calculated relative phases for the 13.035 day period are given. The constancy of the signal's amplitude and its long coherence time may be partly explained by velocity signals induced by active region rotation, but some fundamental cause, possibly related to the rapid rotation of the solar core, is strongly suggested.
Tipo
Sin árbitro
Astrometría

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