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)
· References in the article
· Citations to the Article (22) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Observation of Higher Harmonic Coronal Loop Oscillations
Authors:
De Moortel, I.; Brady, C. S.
Affiliation:
AA(School of Mathematics and Statistics, University of St Andrews, North Haugh, St Andrews, Fife KY16 9SS, UK.), AB(School of Mathematics and Statistics, University of St Andrews, North Haugh, St Andrews, Fife KY16 9SS, UK.)
Publication:
The Astrophysical Journal, Volume 664, Issue 2, pp. 1210-1213. (ApJ Homepage)
Publication Date:
08/2007
Origin:
UCP
ApJ Keywords:
Magnetohydrodynamics: MHD, Sun: Corona, Sun: Oscillations, Waves
DOI:
10.1086/518830
Bibliographic Code:
2007ApJ...664.1210D

Abstract

A sequence of TRACE 171 Å observations taken on 2001 May 13 shows evidence of flare-induced, transverse coronal loop oscillations. We revisit this particular data set and present evidence of the presence of spatially resolved higher harmonics in the transverse loop displacements. The oscillations are identified as the second-harmonic, fast MHD kink waves (periods of 577-672 s), with higher harmonics (250-346 s) also present. The apparent absence of the fundamental mode and the fact that it is the second harmonic (P2) that dominates the oscillatory behavior of this particular loop may shed more light on either the excitation and/or the damping mechanism(s) of flare-induced, transverse loop oscillations.
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