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Local area analysis of high-degree solar oscillations: New ring fitting proceduresThe local area analysis of five-minute solar oscillations using ring diagrams to determine subphotospheric velocity flows is a tool for convection zone dynamics. In relation to the problem of the large computational task of fitting the rings, a faster method is presented that carries out the ring fitting using data obtained with a high l helioseismometer. Noise sources are eliminated, and a perturbation approach is used to fit the azimuthally averaged spectrum. The parameters determined in this way are held constant while the ring diagram is fitted. The results obtained are presented and discussed.
Document ID
19960014141
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Haber, Deborah A.
(Joint Inst. for Lab. Astrophysics Boulder, CO, United States)
Toomre, Juri
(Joint Inst. for Lab. Astrophysics Boulder, CO, United States)
Hill, Frank
(National Solar Observatory Tucson, AZ., United States)
Gough, Douglas O.
(Cambridge Univ. Cambridge, United Kingdom)
Date Acquired
August 17, 2013
Publication Date
June 1, 1995
Publication Information
Publication: ESA, Proceedings of 4th SOHO on Helioseismology. Volume 2: Posters
Subject Category
Solar Physics
Accession Number
96N19810
Funding Number(s)
CONTRACT_GRANT: NAS5-30386
CONTRACT_GRANT: NAG5-2256
Distribution Limits
Public
Copyright
Other

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