Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· arXiv e-print (arXiv:0910.4247)
· References in the article
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Variations in p-Mode Parameters with Changing Onset Time of a Large Flare
Authors:
Maurya, R. A.; Ambastha, A.; Tripathy, S. C.
Affiliation:
AA(Udaipur Solar Observatory, Physical Research Laboratory, Udaipur-313001, India ), AB(Udaipur Solar Observatory, Physical Research Laboratory, Udaipur-313001, India ), AC(National Solar Observatory, 950 N. Cherry Avenue, Tucson, AZ 85719, USA )
Publication:
The Astrophysical Journal Letters, Volume 706, Issue 2, pp. L235-L239 (2009). (ApJL Homepage)
Publication Date:
12/2009
Origin:
IOP
ApJ Keywords:
Sun: activity, Sun: flares, Sun: helioseismology
DOI:
10.1088/0004-637X/706/2/L235
Bibliographic Code:
2009ApJ...706L.235M

Abstract

It is expected that energetic solar flares releasing a large amount of energy at the photosphere may be able to excite the acoustic (p-) modes of oscillations. We have determined the characteristic properties of mode parameters by applying the ring diagram technique to three-dimensional power spectra obtained for solar active region NOAA 10486 during the long-duration energetic X17.2/4B flare of 2003 October 28. Strong evidence of substantial increase in mode amplitude and systematic variations in sub-surface flows, i.e., meridional and zonal components of velocity, kinetic helicity, and vorticity, is found from comparison of the pre- to the post-flare phases.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints