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Observations of Solar Bursts Using the New Radio Spectrograph

Published online by Cambridge University Press:  26 May 2016

A. Shanmugaraju ,
S. Umapathy  and
V. Balasubramanian
A. Shanmugaraju
Affiliation:
1 School of Physics, Madurai Kamaraj University, Madurai 21, India 2Radio Astronomy Centre, TIFR, Ooty — 643 001, India
S. Umapathy
Affiliation:
1 School of Physics, Madurai Kamaraj University, Madurai 21, India
V. Balasubramanian
Affiliation:
2Radio Astronomy Centre, TIFR, Ooty — 643 001, India

Abstract

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This paper presents a detailed analysis of 80 type III radio bursts, two noise storms and 10 type II radio bursts observed in the 30-80 MHz range with the new radio spectrograph (Madurai Solar Radio Spectrograph) when it was operated on a daily basis during the periods December 1997 — April 1998 and August 1998. Results from statistical analysis of type III bursts are in agreement with earlier results. Employing a technique of separating the background continuum of noise storms show that the continuum is produced by electron accumulated from the preceding bursts. Also it is seen that the number of occurrences of type I bursts is maximum during the maximum of the background continuum. Comparison of records of type II bursts from MSRS with other spectrographs (Culgoora & Hiraiso) for the same bursts indicate that the sensitivity of the MSRS at low frequencies is much better than the other spectrographs.

Type
Part 8: Sun and Planetary Systems
Information
Symposium - International Astronomical Union , Volume 199: The Universe at Low Radio Frequencies , 2002 , pp. 432 - 433
Copyright
Copyright © Astronomical Society of the Pacific 2002 

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