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Browsing Kodaikanal Observatory Publications by Title

Browsing Kodaikanal Observatory Publications by Title

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  • Saxena, A. K; Jayarajan, A. P; Kumar, K (Indian Institute of Astrophysics, Bangalore, 1980)
    The design and features of 1.5m vacuum coating plant an in house facility at the Kavalur Observatory for periodic aluminizing of astronomical optics are described. A typical performance data is given.
  • Singh, J (Indian Institute of Astrophysics, 1997)
    As we know, we owe the discovery of solar corona to the observation of total solar eclipse. Inspite of all that has been learned, coronal studies still remain the most important aspect of scientific investigation during ...
  • Ramadurai, S (Indian Institute of Astrophysics, Bangalore, 1986)
    The various observational features of the 3He rich solar flares like their characteristics and association with other phenomena are discussed. It is shown that 3He rich flares split into two distinct groups, if one plots ...
  • Shylaja, B. S; Bappu, M. K. V (Indian Institute of Astrophysics, Bangalore, 1983)
    The absolute visual magnitudes of two Wolf-Rayet stars HD 151932 (WN 7) and HD 152270 (WC 7+08) have been determined from their energy distributions and monochromatic magnitudes least contaminated by emission lines taking ...
  • Narayana, J. V (Government Observatory, Madras, 1963-10)
  • Bhattacharyya, J. C; Sundareswaran. A (Indian Institute of Astrophysics, Bangalore, 1977)
    An electronic system for recording fast light curves is described. The system employs a two track magnetic tape recorder for intermediate storage of photometer and time signals and reproduces these on cathode ray oscilloscope ...
  • Pandya, T. P; Saxena, A. K (Indian Institute of Astrophysics, 1978)
    Following Jones Calculus, a comprehensive theory of the Babinet Compensator has been presented. The performance of the system governed by the compensator-Polaroid unit, has been evaluated in terms of fringe visibility. ...
  • De, B. K; Sarkar, S. K (Indian Institute of Astrophysics, Bangalore, 1997)
    The effect of total solar eclipse of October 24, 1995 on long distance VLF radio wave propagation of 22.3 kHz from North West Cape, Australia to Calcutta is being reported here. After the commencement of the total eclipse ...
  • Royds, T (Indian Institute of Astrophysics, Bangalore, 1915-10-29)
  • Royds, T; Sitarama Ayyar, S (Indian Institute of Astrophysics, Bangalore, 1913-11-15)
  • Mathew, Sunny; Vijayakumar, K. P (Indian Institute of Astrophysics, Bangalore, 1991)
    Multiple angle spectroscopic ellipsometery (SE) has been used to study the variation in the layer structure due to annealing of CdS thin films prepared by spray pyrolysis technique. The samples were studied using visible ...
  • Ramadurai, S (Indian Institute of Astrophysics, 1988)
  • Sharma, D. K; Shyam, D; Sujatha, G (Indian Institute of Astrophysics, Bangalore, 1991)
    In this communication we describe a program which can ray trace through systems bounded by spherical/ aspheric surfaces together with the option to trace through media having graded index profile (GRIN) for one or more ...
  • Bappu, M. K. V; Mohin, S; Unnikrishnan, K. G (Indian Institute of Astrophysics, 1978)
    A summary of observing conditions at Kavalur Observatory is p0resented. These related to spectroscopic and photometric observations and to seeing as evaluated at the 102cm telescope. Nearly fifty percent of nights on which ...
  • Shah, G. A (Indian Institute of Astrophysics, Bangalore, 1991)
    The scattering parameters such as extinction efficiency, albedo, asymmetry parameter, etc, have been studied on the basis of the Mie theory of scattering of electromagnetic radiation by a sphere as well as the classical ...
  • Makarov, V. I; Sivaraman, K. R (Indian Institute of Astrophysics, Bangalore, 1986)
  • Sapra, B. K; Sunny, Faby; Kulkarni, P. B; Mahadevan, T. N; Pandit, G. G (Indian Institute of Astrophysics, Bangalore, 1997)
    A study was undertaken to examine the effect of a short-term reduction in the solar intensity on the characteristics of the atmospheric environment. Meteorological parameters, solar radiation variations, major pollutant ...
  • Shylaja, B. S; Bhattacharyya, J. C (Indian Institute of Astrophysics, Bangalore, 1986)
    From a series of photoelectric scanner observations during 1980-85, the atmospheric extinction at Kavalur has been analysed. The variation of this appears to follow lamda/sup-4/ law. There is a general increase in the ...
  • Viswanath, C (Indian Institute of Astrophysics, Bangalore, 1980)
    An interface to a Carl Zeiss microdensitometer and the HCL's micro-computer MICRO 2200 has been built to digitize, log, and process the analog variable density information on photographic plates. The automated process ...
  • Bappu, M. K. V (Indian Institute of Astrophysics, Bangalore, 1977)
    A rapid-scan single channel spectrum in the Ebert-Fastie arrangement has been constructed and successfully used on the Kavalur 102-cm reflector. The special region 3000-11000 Armstrong is covered with appropriate dry-ice ...

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