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Browsing by Author "Sundararajan, M. S"

Browsing by Author "Sundararajan, M. S"

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  • The 1024 channel digital correlator receiver of the Gauribidanur radioheliograph 
    Ramesh, R; Sundararajan, M. S; Sastry, Ch. V (Springer, 2006-02)
    A low frequency (40 150 MHz) radioheliograph for observations of the solar corona is in operation for the last few years at the Gauribidanur radio observatory, about 100 km north of Bangalore. The array has 32 antenna ...
  • Brazilian Decimetric Array (Phase-I) 
    Sawant, H. S; Ramesh, R; Cecatto, J. R; Faria, C; Fernandes, F. C. R; Rosa, R. R; Andrade, M. C; Stephany, S; Cividanes, L. B. T; Miranda, C. I. A; Botti, L. C. L; Boas, J. W. S. V; Saito, J. H; Moron, C. E; Mascarenhas, N. D; Subramanian, K. R; Sundararajan, M. S; Ebenezer, E; Sankararaman, M. R (Springer Netherlands, 2007-05)
    An East – West, one-dimensional radio interferometer array consisting of five parabolic dish antennas has been set up at Cachoeira Paulista (longitude 45°0′20″ W, latitude 22°41′19″ S) for observations of the Sun and some ...
  • First results from the Gauribidanur Radio heliograph 
    Subramanian, K. R; Ramesh, R; Sundararajan, M. S; Sastry, Ch. V (Kluwer Academic Publishers, 1996-03)
    Observations of the Sun at two frequencies (51 and 77 MHz) using the East-West arm of the Gauribidanur Radio heliograph are presented.
  • Gauribidanur radio array solar spectrograph (GRASS) 
    Ebenezer, E; Subramanian, K. R; Ramesh, R; Sundararajan, M. S; Kathiravan, C (Astronomical Society of India, 2007-06)
    We describe the Gauribidanur radio array solar spectrograph (GRASS) and its various systems. The system consists of an array of 8 log periodic dipoles,a spectrum analyzer and a data acquisition system. The spectrograph ...
  • The Gauribidanur Radioheliograph 
    Ramesh, R; Subramanian, K. R; Sundararajan, M. S; Sastry, Ch. V (Kluwer Academic Publishers, 1998-08)
    A new radio heliograph for obtaining two-dimensional images of the solar corona sequentially at many frequencies in the range 40-150 MHz has been built by the Indian Institute of Astrophysics at the Gauribidanur Radio ...
  • A low cost steerable radio-telescope 
    Sawant, H. S; Neri, J. A. C. F; Fernandes, F. C. R; Cecatto, J. R; Sankararaman, M. R; Faria, C; Stephany, S; Rosa, R. R; Andrade, M. C; Alonso, E. M. B; Ludke, E; Subramanian, K. R; Ramesh, R; Sundararajan, M. S; Ananthakrishnan, S; Swarup, G; Boas, J. W. V; Botti, L. C. L; Moron, C. E; Saito, J. H (Elsevier B. V., 2003)
    We present the technical characteristics of a low-cost radio telescope for solar/non solar observations at decimetric (1200–1700 MHz) and centimetric (2700 and 5000 MHz) wavelengths known as Brazilian Decimetric Array ...
  • A low-frequency (30-110 MHz) Antenna system for observations of polarized radio emission from the solar corona 
    Ramesh, R; Kathiravan, C; Sundararajan, M. S; Barve, Indrajit V; Sastry, Ch. V (Springer Netherlands, 2008-12)
    An interferometer antenna system to observe polarized radio emission from the solar corona at different frequencies in the range 30-110 MHz has been commissioned recently by the Indian Institute of Astrophysics at the ...
  • A new digital spectrograph for observations of radio burst emission from the Sun 
    Ebenezer, E; Ramesh, R; Subramanian, K. R; Sundararajan, M. S; Sastry, Ch. V (EDP Sciences, 2001-03)
    A new digital spectrograph for obtaining a dynamic spectrum of radio burst emission from the Sun in the frequency range 30-80 MHz has been recently commissioned at the Gauribidanur Radio Observatory (Lat: 13degr ...

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