Metric observations of transient, quasi-periodic radio emission from the solar corona in association with a ``halo'' CME and an ``EIT wave'' event

Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/3853

Title:	Metric observations of transient, quasi-periodic radio emission from the solar corona in association with a ``halo'' CME and an ``EIT wave'' event
Authors:	Ramesh, R Kathiravan, C Satya Narayanan, A Ebenezer, E
Keywords:	Sun: Activity Sun: Corona Sun: Oscillations Sun: Radio Radiation Magnetohydrodynamics (MHD)
Issue Date:	Mar-2003
Publisher:	The European Southern Observatory
Citation:	Astronomy and Astrophysics, Vol. 400, No. 2, pp. 753 - 758
Abstract:	We present metric radio observations of quasi-periodic emission from the solar corona in close association with a ``halo'' CME and an ``EIT wave'' phenomenon. The radio event lasted for about 60 s. Its mean periodicity was ~8.8 s. The estimated Alfvén speed in the corona was 1034 km s-1. The derived height of the source region of the observed quasi-periodic emission, and the magnetic field at the corresponding location (for emission in the fundamental mode) were ~ 0.23 Rsun and 6.3 G, respectively. The magnetic field for harmonic emission was found to be ~ 3.1 G.
URI:	http://hdl.handle.net/2248/3853
ISSN:	0004 - 6361
Appears in Collections:	IIAP Publications

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