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Browsing Publications of Astronomical Society of India by Title

Browsing Publications of Astronomical Society of India by Title

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  • Photometric elements, absolute dimensions and evolutionary status of the eclipsing binary HU Tauri 
    Parthasarathy, M; Sarma, M. B. K; Vivekananda Rao, P (Astronomical Society of India, 1993)
    The photometric elements of HU Tauri are derived from an analysis of its B and V light curve using the Wilson and Devinney (1971) light curve synthesis method. The photometric elements suggest that HU Tauri is a semi-detached ...
  • Photometric Flash-Light Observations of SL9 Impact on Jupiter 
    Srivastava, R. K; Padalia, T. D; Mahra, H. S (Astronomical Society of India, 1997)
    The effect of SL9 impact on Jupiter has been assessed by observing flash-light effect on the nearest satellite of Jupiter, the Io, on 21 July, 1994. The observations in V filter of flash-light effect on Io suggest a ...
  • Photometric Observations of BW Vulpeculae 
    Singh, Mahendra; Joshi, S. C (Astronomical Society of India, 1983-06)
    Photometric observations of beta Cephei star BW Vul, secured on five nights, in B and V filters are given. A new ephemeris for the maxima of the five star and its rate of change of period has been derived.
  • Photometric observations of cataclysmic variables from UPSO, Naini Tal 
    Ashoka, B. N; Seetha, S; Marar, T. M. K; Raj, E; Kasturirangan, K; Mahra, H. S (Astronomical Society of India, 1998)
  • Photometric observations of the AM CVn star EC 15330-1403 
    Seetha, S; Ashoka, B. N; Raj, E; Kasturirangan, K (Astronomical Society of India, 2000)
  • Photometric Performance of the CCD Detector at the Kavalur 102-CM Reflector 
    Sagar, R; Pati, A. K (Astronomical Society of Indian, 1989-03)
    A CCD detector system built around the Thomson TH 7882 chip has recently been acquired for use at the 102 cm telescope at the Vainu Bappu Observatory (VBO). The chip has a coating for enhanced ultraviolet sensitivity, ...
  • Photometric performance of UPSO CCD system 
    Mohan, V; Paliwal, D. C; Mahra, H. S (Astronomical Society of India, 1991)
    The photometrics CCD system obtained by the Uttar Pradesh State Observatory is discussed. The calibration of the system is described and its photometric performance is evaluated based on photometric transformation coefficients
  • Photometric solution for the eclipsing binary TT Aurigae 
    Abhyankar, K. D; Rajasekhar Rao, N; Lokanadham, B (Astronomical Society of India, 1982-12)
    Photometric elements of TT Aur are derived from the UBV observations of the star during 1973-77. The system is found to be detached but quite close. Absolute dimensions are obtained on the basis of the spectroscopic element ...
  • Photometric studies of close binary systems 
    Varricatt, W. P (Astronomical Society of India, 2000)
    Two eclipsing binary stars of the Algol type, RZ Cassiopeiae and R Canis Majoris, are observed in the near IR photometric bands J and K and the light curves are analysed using the Wilson - Devinney light curve synthesis ...
  • Photometric studies of intermediate and old age galactic star clusters 
    Durgapal, A. K (Astronomical Society of India, 2001)
    We present a detailed analysis of five intermediate / old age open star clusters, based on the CCD UBVRI data. We have used a new colour index parameter (CIP), which is the difference in colour index between the blue turn ...
  • Photometric studies of starburst galaxies 
    Chitre, A. A (Astronomical Society of India, 2000)
    We present the results of a detailed morphological analysis of a sample of Markarian starburst galaxies. CCD surface photometry of those galaxies was carried out based on observations made in U BV RI and H?. The morphology ...
  • A photometric study of the open cluster King 7 
    Durgapal, A. K; Mohan, V; Pandey, A. K; Mahra, H. S (Astronomical Society of India, 1996)
  • Photometric study of the RS CVn binary II Pegasi 
    Mohin, S; Raveendran, A. V; Mekkaden, M. V (Astronomical Society of Indian, 1986-03)
    An analysis of available data and of B and V photometry obtained at Kavalur on 39 nights during the 1980-81, 1981-82, and 1984-85 observing seasons of II Peg shows no two light curves to agree in shape, amplitude, phases ...
  • Photometric study of the short period W UMa system - FZ Orionis 
    Rukmini, J; Vivekananda Rao, P; Ausekar, B. D (Astronomical Society of India, 2001)
    Photoelectric B, V observations of the eclipsing binary system FZ Orionis obtained from the Japal-Rangapur Observatory during the years 1981 to 1992 are presented and studied. No period changes in the system are detected. ...
  • Photometric study of two W UMa-type systems in the intermediate age open cluster Be 33 
    Rukmini, J; Rao, P. V (Astronomical Society of India, 2002-09)
    Study of eclipsing binaries in open clusters offers information regarding the age of the cluster in addition to the properties of the component stars. In this paper we present the analysis of two W UMa systems discovered ...
  • Photometry of Comet P/Halley on 1986 March 19 
    Sen, A. K; Deshpande, M. R; Joshi, U. C (Astronomical Society of India, 1991)
    Photometric observations of the Comet P/Halley are described with specific data given regarding the fluxes in the coma and the dust tail and their molecular contents. The observed magnitude of the solar-type star HD 105590 ...
  • Photometry of open cluster King 21 
    Mohan, V; Pandey, A. K (Astronomical Society of India, 1984-09)
    Photoelectric magnitudes of 26 stars in the field of King 21 have been obtained. The reddening is variable across the cluster. A distance of 1.91 kpc has been estimated for the cluster. It is concluded that the age of the ...
  • Photometry of open cluster STOCK 17 
    Pandey, A. K (Astronomical Society of Indian, 1986-03)
    Photoelectric magnitudes of 10 stars in the field of Stock 17 have been obtained. The reddening is uniform across the cluster. A distance of 2.12 kpc has been estimated for the cluster. It is concluded that the age of the ...
  • Photometry of X-ray selected quasars from Einstein Medium Sensitivity Survey 
    Singh, K. P; Bhat, P. N; Prabhu, T. P (Astronomical Society of India, 1993)
    We present a few photometric measurements of quasars in the Einstein Medium Sensitivity Survey (EMSS). The measurements are a part of an ongoing program of CCD photometry of quasars in the southern sky and are based on ...
  • Physical and Chemical Properties of Comets 
    Mendis, D. A (Astronomical Society of India, 1974-12)

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