IIA Institutional Repository

Browsing by Author "Umapathy, S"

Browsing by Author "Umapathy, S"

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  • The location of solar metric type ii radio bursts with respect to the associated coronal mass ejections 
    Ramesh, R; Anna Lakshmi, M; Kathiravan, C; Gopalswamy, N; Umapathy, S (IOP Publishing, 2012-06-20)
    Forty-one solar type II radio bursts located close to the solar limb (projected radial distance rlesssim 0.8Rbigdot) were observed at 109 MHz by the radioheliograph at the Gauribidanur observatory near Bangalore during the ...
  • The Madurai solar radio spectrograph 
    Shanmugaraju, A; Umapathy, S (Astronomical Society of India, 1998)
    The solar radio spectrograph has been constructed at our School of Physics to study the dynamic activities of the sun in metre wavelenght which is quite important for understanding the physics of the outer solar corona. ...
  • Radio spectrograph observations of the recent soalr eclipse on October 24, 1995 
    Shanmugaraju, A; Umapathy, S (Indian Institute of Astrophysics, Banglaore, 1997)
    A solar radio spectrograph has been developed to observe the transient solar radio emissions in the band of 30 MHz at our School of Physics. A non trackable log periodic antenna having beam of 60 degree in E-W and 90 degree ...

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