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Browsing by Author "Sastry, Ch. V"

Browsing by Author "Sastry, Ch. V"

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  • Polarization of the thermal radio emission from outer solar corona 
    Sastry, Ch. V (The American Astronomical Society, 2009-06)
    The Haselgrove equations for radio-ray propagation in an anisotropic medium are used to determine the degree of circular polarization (dcp) of the low-frequency thermal radio emission from the outer solar corona with a ...
  • Pulsating radio emission at decametre wavelengths from the sun 
    Sastry, Ch. V; Krishan, V; Subramanian, K. R (Indian Academy of Sciences, 1981-03)
    Observations on the pulsation pattern in the time profile of short duration solar radio bursts at decametre wavelengths are presented. The pulsations are found to be present predominantly in the saturation phase of the ...
  • The radio brightness of the undisturbed outer solar corona in the presence of a radial magnetic field 
    Golap, K; Sastry, Ch. V (Springer, 1994-03)
    The radio brightness of the quiet outer solar corona at a frequency of 35 MHz in the presence of a radial magnetic field is computed. It is found that the brightness temperature of the ordinary radiation increases ...
  • Radio Emission From The Quiet Sun and Active Regions at Decametric Wavelengths 
    Sastry, Ch. V (Indian Institute of Astrophysics, Bangalore, 1986)
    The Continuum emission from the Quiet Sun and active regions is the radiation from the solar atmosphere when there is no transient burst activity. At decametric wavelengths this radiation originates in the outer corona. A ...
  • Radio observations of a coronal mass ejection induced depletion in the outer solar corona 
    Ramesh, R; Sastry, Ch. V (European Southern Observatory, 2000-06)
    We report the first low frequency radio observations of a depletion that occurred in the outer solar corona in the aftermath of the CME event of 1986 June 5, with the large E-W one dimensional grating interferometer at the ...
  • Radio Observations of Compact Sources in the Outer Solar Corona 
    Ramesh, R; Subramanian, K. R; Sastry, Ch. V (Indian Institute of Astrophysics, Bangalore, 1997)
    We have observed radio emission from the solar corona at a frequency of 77 MHz during the total solar eclipse on October 24, 1995 from our observatory at Gauribidanur. Sources of angular sizes less than or equal to 1.5' ...
  • Second National Workshop on Solar Physics, Indian Institute of Astrophysics, Kodaikanal, India 
    Krishan, V; Sastry, Ch. V (Springer, 1989-09)
    This paper a brief report about the topics discussed at the second Indian national Workshop on Solar Physics held in September 1987
  • Some initial results from the Gauribidanur radio heliograph 
    Ramesh, R; Subramanian, K. R; Sastry, Ch. V (Astronomical Society of India, 1998)
    Observations of the sun at two frequencies (51 and 77 MHz)using the East-West arm of the Gauribidanur Radio heliograph are presented.
  • The structure of the Cygnus Loop at 34.5 MHz 
    Sastry, Ch. V; Shevgaonkar, R. K; Dwarakanath, K. S (Indian Academy of Sciences, 1981-09)
    The large supernova remnant Cygnus Loop was observed at 34.5 MHz with a low-frequency radio telescope at Gauribidanur, India. The structure of the object is presented on a radio map with a resolution of 26 arcmin x 40 ...
  • The time splitting of decameter solar radio bursts 
    Sastry, Ch. V (Gordon and Breach, Science Publishers Ltd., 1971-03)
    Solar radio bursts were observed with a multi-channel receiver with frequency separations of 100 to 200 kHz: at a center frequency of 25 MHz. The time resolution was 15 msec. Some properties of double bursts are described.
  • Time structure of solar decametre Type III radio bursts 
    Thejappa, G; Sastry, Ch. V (Indian Academy of Sciences, 1982-06)
    The time structure of solar radio decameter Type III bursts occurring during the periods of enhanced emission is investigated. It is found that the time profiles can take a variety of forms of which three distinct types ...

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