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Spectrum of Solar Type I Continuum Noise Storm in the 50 - 80 MHz band, and Plasma characteristics in the associated source region View all abstracts by submitter

G. A. Shanmugha Sundaram   Submitted: 2004-07-25 20:47

Continuum observations of a solar noise storm in the frequency range of 50 - 80 MHz observed with the Gauribidanur radio spectrograph during 2000 September, 26 & 27, are presented here. The radio spectral index of the noise storm continuum in the band 50 - 80 MHz is found to be ~3.65 during the above period. The Noise Storm continuum radiation is explained as a consequence of the non-thermal, plasma emission mechanism. The beam-density of suprathermal electrons is estimated for the coronal plasma near the source region of storm radiation. Supplementary evidence for the density-estimate is provided by way of analysing the imaging data from the SXT on-board the Yohkoh spacecraft, and the LASCO, MDI, and EIT on board the SoHO spacecraft.

Authors: Sundaram, Shanmugha GA and Subramanian, KR
Projects: Soho-EIT,Soho-MDI,Soho-LASCO,Yohkoh-SXT

Publication Status: Astrophys.J. 605 (2004) 948-959
Last Modified: 2004-07-25 20:47
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