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Browsing Kodaikanal Observatory Publications by Subject "Solar Corona"

Browsing Kodaikanal Observatory Publications by Subject "Solar Corona"

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  • Broad Band Photometry of the Solar Corona of 1983, June 11 
    Sivaraman, K. R; Singh, J; Kapoor, R. C; Kariyappa, R (Indian Institute of Astrophysics, Bangalore, 1985-11)
    The solar corona was photographed at an effective wavelength of 6300A during the total eclipse of 1983, June 11 at Indonesia. From the isophotes of the corona, the intensity distributions along the equator, poles, streamers ...
  • Heating of the Solar Corona 
    Krishan, V (Indian Institute of Astrophysics, Bangalore, 1988)
    The maintenance of the million degree solar corona continues to be a challenging and an inspiring problem. There are basically two different mechanisms of heating depending upon the dominance or otherwise of the magnetic ...
  • Observations of the brightness temperature distribution of the quiet solar corona at decametric wavelengths 
    Sastry, Ch. V (Indian Institute of Astrophysics, Bangalore, 1988)
    The brightness temperature distribution of the quiet solar corona at a wavelength of 8.9 Meters is measured with two types of radio telescopes: (1) A “ T ” type array with a resolution of 26’x38’ and (2) A fan beam ...
  • Observations of the Corona at the Eclipse of 1983 June 11. I. Temperature and Rotation of the Corona from 5303A and 6374A profiles 
    Singh, J; Sivaraman, K. R; Rajamohan, R (Indian Institute of Astrophysics, Bangalore, 1988)
    During the total solar eclipse of 1983 June 11, coronal spectra were obtained in the 5303A (Fe XIV) line using the multislit spectrograph at a dispersion of 2.17A mm-1 . The line profiles measured at 113 locations from ...
  • Observations on the Fine Structures in Solar Decametric Radio Emission 
    Gopalswamy, N; Thejappa, G; Sastry, Ch. V (Indian Institute of Astrophysics, Bangalore, 1984)
    The Solar decametric radio emission consists of a variety of fine structures. This reflects the complexity of the corona at this level. Two observations, viz. absorption bursts and short duration narrow band bursts are ...
  • Photography of Solar Corona Using Indian Air Force Aeroplane 
    Ramani, M; Cowsik, R; Singh, J; Shukla, A. K (Wg. Cdr.); Ravi Shekar (Sqn. Ldr.); Narayana, P. V. S (Fg. Offr); Shaji, P. K (Fg. Offr.); Paul, S. K (Fg. Offr.); Shelkey, S. N (J.W.O); Babu, K. R (J.W.O); Kamble, V. B (Indian Institute of Astrophysics, Bangalore, 1997)
    The teams of the Indian Air Force participated actively in the programme. They made several supersonic flights to follow shadow zone of the moon on earth along the path of totality, thereby extending thte duration of ...
  • Radio emission from the Solar Corona due to shock waves 
    Thejappa, G (Indian Institute of Astrophysics, Bangalore, 1988)
    The slowly drifting solar type II radio bursts are believed to be due to the flare associated shock waves propagating radially outward in the corona. The main observational characteristics of these bursts show that the ...
  • Search for Hydrogen-alpha Emitting Cool Pockets in Corona During the Total Solar Eclipse of October 24, 1995 
    Cowsik, R; Singh, J; Raju, K. P; Saxena, A. K; Samson, J. P. A; Naidu, B. N (Indian Institute of Astrophysics, Bangalore, 1997)
    Narrow pass band hydrogen alpha filtergrams were obtained during totality at Kalpi, to look for cool pockets of H-alpha emission in corona first observed by Bappu and Bhattacharyya during the 1970 Mexican eclipse observations. ...
  • Structure and Dynamics of the Solar Wind 
    Vats, Hari Om (Indian Institute of Astrophysics, Bangalore, 1986)
    Due to high temperature and very small temperature gradient with height, the solar corona is not in hydrostatic equilibrium but is continuously expanding into the inter-planetary space. The expanding coronal plasma is known ...
  • Structure of the Solar Corona 
    Krishan, V (Indian Institute of Astrophysics, Bangalore, 1988)
    Solar eclipses established the existence of the outer region of the solar atmosphere, the solar corona, extending to several solar-radii and exhibiting open and closed magnetic field patterns. The density and the temperature ...
  • Ultra-low Spatial Resolution Photometry in Near-infrared to Detect the Solar Dust Ring 
    Singh, J; Cowsik, R; Raju, K. P; Mohin, S; Ravi, K (Indian Institute of Astrophysics, Bangalore, 1997)
    There are conflicting reports about the existence of the dust ring around the Sun. An experiment to detect the solar dust ring was performed by IIA group during the total solar eclipse of Oct. 24, 1995. A near-infrared ...

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