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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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  • Astrophysical molecule CN: vibronic transition probability parameters 
    Karthikeyan, B; Balachandra Kumar, K; Rajamanickam, N; Bagare, S. P (Astronomical Society of India, 2006-06)
    Astrophysical applications are broadened by the emerging consensus on the vibration-electronic (vibronic) transition probability parameters such as Franck - Condon (FC) factors & r - centroids of some molecular species ...
  • Astrophysical molecule S2 - Vibrational transition probability data 
    Anandaraj, R; Sankaralingam, T; Asokarajan, R; Rajamanickam, N (Astronomical Society of India, 1992)
    The study computes the Franck-Condon factors (vibrational transition probabilities) and r-centroids by the more reliable numerical integration procedure for the bands of C 3Sigma(u)(-) yields X 3Sigma(g)(-) and D3 Pi(u,r) ...
  • Astrophysical Significance of the Observations of Deuterons and Antiprotons in Cosmic Radiation 
    Stephens, S. A (Astronomical Society of India, 1978-06)
    A general survey of the different processes that lead to the production of deuterons and antiprotons in different regions of space and in cosmic rays is made. The avaiable observations on these particles are summarised and ...
  • ASTROSAT observations: complementary studies from ground 
    Sreekumar, P (Astronomical Society of India, 2005-06)
    Since the advent of the satellite era, X-ray astronomy and UV astronomy have advanced tremendously. The discovery of intense X-ray emission from accreting compact objects has permitted very detailed timing and spectral ...
  • Asymmetry in energy transfer in a collision of galaxies 
    Ahmed, Farooq; Alladin, S. M (Astronomical Society of India, 1981-03)
    The time dependence of binding and translational energies of a pair of galaxies during head-on collisions has been studied with impulsive approximation. The two galaxies are assumed to be identical with mass distribution ...
  • Asymptotic giant branch stars in the ISOGAL survey 
    Ojha, D. K; Omont, A; Simon, G; Blommaert, J (Astronomical Society of India, 2000)
    We present and analyse the data of a field at 1 = 0o, b = +1o from the ISOGAL survey of selected areas of the inner Galactic bulge at 15 and 7 ?m. In combination with IJKs data from the near-infrared southern sky survey ...
  • Atmospheres of components of the close binary stars 
    Srinivasa Rao, M (Astronomical Society of India, 2002-09)
    For theoretical modeling of binary systems, one has to consider realistic models which takes into account the radiative transfer, hydrodynamics, and the effect of irradiation from the secondary component on the atmosphere of ...
  • Atmospheric extinction and background light measurements at Jammora, Jammu 
    Kaul, S. R; Dhar, V. K; Kaul, M. K; Bhat, R. K; Sapru, M. L; Kaul, R. K; Bhat, C. L (Astronomical Society of India, 1994)
    Atmospheric extinction and background light measurements have been carried out at Jammora for the period 1991 October-November, with a view to evaluate its suitability as a site for our new ground-based gamma-ray observatory. ...
  • Atmospheric extinction at Devasthal, Naini Tal 
    Mohan, V; Uddin, W; Sagar, R; Gupta, S. K (Astronomical Society of India, 1999)
    The atmospheric extinction coefficients in Johnson U, B, V, R and I photometric passbands are determined for the first time at Devasthal, Naini Tal during 1998 and 1999. A solid state stellar photometer mounted on a 52-cm ...
  • Atmospheric extinction measure at Guwahati 
    Barthakur, N. K; Duorah, H. L (Astronomical Society of India, 1996)
    The extinction coefficients in UBV filters were determined using the 15cm reflector at Guwahati University Observatory, Jalukbari during January - March, 1994, January - March, 1995 with photometric observations. The ...
  • Atmospheric extinction measurements at Leh in near infrared bands 
    Bhattacharyya, J. C; Scaria, K. K; Singh, J; Babu, G. S. D; Muraleedharan Nair, R; Sivaraman, K. R (Astronomical Society of Indian, 1990-03)
    Site survey observations to determine the extinction in the IR bands were carried out at Leh. Mean extinction coefficients obtained from 'two nights' observations in J, H, and K bands are k(J) = 0.05 + or - 0.01; k(H) = ...
  • Atmospheric parameter monitoring at Mt. Abu 
    Goyal, A; Sapru, M. L; Kaul, R. K; Bhat, C. L (Astronomical Society of India, 2002)
    Several atmospheric / meterological parameters, including atmospheric dust load, sky condition and solar UV (? = 270 - 310nm) radiation flux have been monitored on a daily basis at the GRACE observatory site in Mt. Abu for ...
  • Atmospheric Precipitable Water Vapour Over Manora-Peak Naini-Tal 
    Bhatt, B. C; Mahra, H. S (Astronomical Society of Indian, 1987)
    Precipitable water vapour is one of the variable atmospheric constituents and its short-term and seasonal variations may affect the infrared photometric observations. From the analysis of the measurements, made at Manora ...
  • Atmospheric soundings from Mount Abu 
    Sharma, S; Sinha, H. S. S (Astronomical Society of India, 2005-06)
    An atmospheric science laboratory was set up at Gurushikhar, in the campus of PRL's Infrared observatory, in 1994. A variety of scientific instruments were housed in the atmospheric science laboratory to explore the Earth's ...
  • Atomic Spectra in the Atmosphere of Dense Stars 
    Warke, C. S (Astronomical Society of India, 1979-12)
    The intense field atomic physics problem is briefly reviewed, in particular those aspects of it which are of astrophysical interest. Theoretical predictions of the spectral features and the polarization in the continum ...
  • The August Meteors 
    The Director of the section (Astronomical Society of India, 1911-07)
  • Automation of dome rotation at 2.34m Vainu Bappu Telescope 
    Chinnappan, V; Faseehana (Astronomical Society of India, 1992)
  • Auxiliary control systems for Pachmarhi array of Cverenkov telescopes 
    Gothe, K. S; Acharya, B. S; Bhat, P. N; Chitnis, V. R; D'Souza, A. I; Francis, P. J; John, A. V; Joshi, S. R; Majumdar, P; Nagesh, B. K; Pose, M. S; Purohit, P. N; Rahman, M. A; Rao, K. K; Rao, S. K; Sharma, S. K; Singh, B. B; Stanislaus, A. J; Sudershanan, P. V; Upadhya, S. S; Venkateshmurthy, B. L; Vishwanath, P. R (Astronomical Society of India, 2002)
    Pachmarhi Array of Cverenkov Telescopes (PACT) consists of 25 Telescopes deployed over an area of 100m x 80m. The experiment is based on atmospheric Cverenkov technique to detect Very High Energy celestial gamma-rays using ...
  • Averaging problem in general relativity, macroscopic gravity and using Einstein's equations in cosmology 
    Zalaletdinov, R. M (Astronomical Society of India, 1997)
    The averaging problem in general relativity is briefly discussed. A new setting of the problem as that of macroscopic description of gravitation is proposed. A covariant space-time averaging procedure is described. The ...
  • Axial oscillation of a planetoid in Restricted Three Body Problem : The circular Sitnikov problem 
    Faruque, S. B (Astronomical Society of India, 2002-12)
    Two equally massive primaries are assumed to be moving in circular orbits in Cartesian x-y plane. A planetoid is assumed to be on the z-axis. This is a particular case of the restricted three body problem with mass ratio ...

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