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Browsing Publications of Astronomical Society of India by Author "Rajamohan, R"

Browsing Publications of Astronomical Society of India by Author "Rajamohan, R"

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  • Effects of rotation on the colours and line indices of stars. IV - The effect on broad band UBV colours 
    Mathew, M; Rajamohan, R (Astronomical Society of India, 1990)
    The effect of rotation on UBV photometry is estimated. The relationship between (U-B) and (u-b) and also (B-V) and (b-y) are established using the standard stars photometry to compare the observed effects with theoretical ...
  • Emission lines of inner corona observed during the total solar eclipse of 1980 February 16 
    Singh, J; Rajamohan, R; Raheem, K. C. A (Astronomical Society of India, 1983-12)
    Spectrograms of the inner solar corona were obtained during the 1980 total solar eclipse. Two Ebert-Fastie type spectrographs with circular slits were used to obtain spectra on the east and the west at 1.06 R. These ...
  • Narrow band photometry of Comet Halley in the emission bands and the continuum 
    Babu, G. S. D; Nathan, J. S; Rajamohan, R; Sivaraman, K. R (Astronomical Society of Indian, 1989-09)
    IHW filter photometry of Comet Halley was carried out on seven nights during pre-perihelion period and on six nights during post-perihelion period, using the 40-cm telescope at the Vainu Bappu Observatory, Kavalur, as a ...
  • Project Kalki - a Sky Survey with 45-CM Schmidt Telescope - I 
    Rajamohan, R; Bhattacharyya, J. C; Kuppuswamy, K; Paranjpye, A (Astronomical Society of Indian, 1987-12)
    A brief description of the sky survey project taken up with the 45 cm Schmidt telescope of the Vainu Bappu Observatory at Kavalur is given. Positions of 11 asteroids detected on plates taken during 1987 Feburary-March are reported
  • Project Kalki - A sky survey with the Schmidt telescope. 2 
    Rajamohan, R; Shankar, P. N; Bhattacharyya, J. C; Kuppuswamy, K; Paranjpye, A (Astronomical Society of Indian, 1988-03)
    The region of the sky photographed with the 45cm Schmidt telescope during 1987 March-May and the position of the asteroids detected on these plates are reported in this paper. Out of the 29 asteroids observed four have ...
  • Speckle interferometric observations of the collision of comet Shoemaker-Levy 9 with Jupiter 
    Saha, S. K; Rajamohan, R; Vivekananda Rao, P; Sunder, G. S; Swaminathan, R; Lokanandham, B (Astronomical Society of India, 1997)
    Speckle interferometric technique has been used to obtain a series of short exposure images of the collision of comet Shoemaker-Levy 9 with Jupiter during the period of July 17-24, 1994 using the Nasmyth focus of 1.2 meter ...
  • Synchronization in binary stars 
    Rajamohan, R; Venkatakrishnan, P (Astronomical Society of India, 1981-12)
    Radiative dissipation of the dynamical tide is found to be inadequate in explaining the observed synchronization between orbital and rotational motions of the main sequence components of early-type binary stars. The ...
  • Variable stars in the old galactic cluster M67 
    Rajamohan, R; Bhattacharyya, J. C; Subramanian, V; Kuppuswamy, K (Astronomical Society of Indian, 1988-12)
    Schmidt plates of the old open galactic cluster M67 were obtained on twelve nights to find the most probable variables in the cluster. The Sabattier technique was used to derive the magnitudes of the cluster members. The ...

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