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Title: An estimation of the plasma parameters in the solar corona using quasi-periodic metric type III radio burst emission
Authors: Ramesh, R
Satya Narayanan, A
Kathiravan, C
Sastry, Ch. V
Shankar, N. U
Keywords: Sun: activity;Sun: flares;Sun: oscillations;Sun: radio radiation
Issue Date: Feb-2005
Publisher: EDP Sciences
Citation: Astronomy and Astrophysics, Vol. 431, No. 1, pp. 353 - 357
Abstract: We report radio observations of quasi-periodic type III burst emission from the solar corona in close association with the 2B/X2.8 flare of December 11, 2001 at two frequencies (151.5 and 109 MHz). The measured mean period was ≈11.6 s. We attempted to infer the plasma parameters of the region where the electron beams responsible for the observed type III emission were accelerated/injected using our data, and the values are the following: the Alfvén speed (v/sub A) = 873± 427 km s-1; the electron density (N/sube) ≈ 3.09 × 10/subp9 cm/sub-3; the magnetic field strength (B) = 22 ± 11 G.
ISSN: 0004-6361
Appears in Collections:IIAP Publications

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