Study of Longperiod Global Oscillations of Sun Through Spherical Harmonic Fourier Analysis of Sunspot Activity

Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/3746

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DC Field	Value	Language
dc.contributor.author	Gokhale, M. H	-
dc.date.accessioned	2008-09-20T11:45:00Z	-
dc.date.available	2008-09-20T11:45:00Z	-
dc.date.issued	1988	-
dc.identifier.citation	IAU Symposium, No. 123, pp. 219 - 222	en
dc.identifier.issn	0074-1809	-
dc.identifier.uri	http://hdl.handle.net/2248/3746	-
dc.description.abstract	A spherical harmonic Fourier analysis of the maximum areas of sunspot groups listed in Ledgers I and II of Greenwich photoheliographic results for 1933 - 1954 yield significant peaks at the 11 y periodicity for some spherical harmonic modes: especially the mode (l = 6, m = 0). A similar analysis of the daily areas of the spotgroups during 1944 - 1954 yields 11 y periodicity peaks only for some non-axisymmetric modes. These results suggest that the sunspot activity may be physically related to long period global oscillations of the sun.	en
dc.language.iso	en	en
dc.publisher	International Astronomical Union	en
dc.relation.uri	http://adsabs.harvard.edu/abs/1988IAUS..123..219G	en
dc.subject	Global Oscillations	en
dc.subject	Sunspots	en
dc.title	Study of Longperiod Global Oscillations of Sun Through Spherical Harmonic Fourier Analysis of Sunspot Activity	en
dc.type	Article	en
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