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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/1631

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.
Udaya Shankar, N.
Keywords: Sun: activity
Sun: flares
Sun: oscillations
Sun: radio radiation
Issue Date: Feb-2005
Publisher: EDP Sciences
Citation: Astronomy and Astrophysics, 2005, Vol.431, p353-357
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 (vA) = 873± 427 km s-1; the electron density (Ne) ≈ 3.09 × 109 cm-3; the magnetic field strength (B) = 22 ± 11 G.
URI: http://hdl.handle.net/2289/1631
ISSN: 0004-6361
Alternative Location: http://dx.doi.org/10.1051/0004-6361:20041130
Copyright: (2005) by the European Southern Observatory (ESO).
Appears in Collections:Research Papers (A&A)

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