HR: 11:51h
AN: SH22A-06 INVITED     [Abstracts]
TI: Quasi-periodic oscillations associated with solar flares
AU: * Nakariakov, V M
EM: V.Nakariakov@warwick.ac.uk
AF: University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, United Kingdom
AB: Mechanisms for the generation of quasi-periodic pulsations (QPP) in microwave, X-ray and visible light emission generated by solar and stellar flares, based upon magnetohydrodynamic (MHD) oscillations, are discussed. QPP can be produced by internal MHD oscillations of flaring magnetic structures, in particular by kink, sausage and longitudinal modes. Different modes have different observational signatures in different emission bands, allowing for the correct identification of the mode. Another mechanism is based upon periodic triggering of flaring energy releases by oscillations in a non-flaring loop situated nearby the flaring region. The use of observable parameters of QPP for remote diagnostics of coronal plasmas, in particular of the magnetic field in the flaring regions is demonstrated.
UR: http:solarphysics.livingreviews.org/Articles/lrsp-2005-3/
DE: 7509 Corona
DE: 7519 Flares
DE: 7524 Magnetic fields
DE: 7835 Magnetic reconnection (2723, 7526)
DE: 7836 MHD waves and instabilities (2149, 2752, 6050)
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Joint Assembly