Other
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sp21c04l&link_type=abstract
American Geophysical Union, Spring Meeting 2001, abstract #SP21C-04
Other
7522 Helioseismology
Scientific paper
P-mode frequencies have traditionally been fit using a symmetric Lorentzian profile. Due to clear asymmetries in the peaks, researchers have begun moving toward asymmetric near-Lorentzian profiles; amongst the most popular is the Nigam profile. In this paper, results are presented from a fit of the Nigam profile to two datasets, both taken from GONG data, using a new peak fitting engine (PEAKFIND Mark II). Details of PEAKFIND Mark II are presented. Results of the Nigam model fits are compared with those achieved using a symmetric Lorentzian line profile (those reported by the GONG network). Results are also shown to be largely consistent with other published fits in the low frequency region.
Hill F. F.
Howe Rachel
Komm Rudi
Landy D.
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