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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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  • A highly flattened stellar disk in the elliptical galaxy NGC 4564 
    Sahu, D. K; Pandey, S. K; Kembhavi, A. K (Astronomical Society of India, 1996)
    We present the R band isophotal shape analysis of the E6 elliptical galaxy NGC 4564 by fittng ellipses to the observed isophotes using Fourier expansion procedure. The galaxy is found to have pointy isophotes, showing ...
  • Hint of a galactic origin for a sub-population of extremely short and hard cosmic gamma-ray bursts 
    Shanthi, K; Rao, A. R; Bhat, C. L; Vahia, M. N (Astronomical Society of India, 1999)
    Gamma Ray Bursts (GRBs) belong to an exotic class of astronomical phenomena whose origin and nature continues to puzzle the astrophysical community. These enigmatic events are seen as intense outbursts of high-energy photon ...
  • Historical aspects of gamma-ray astronomy 
    Sreekantan, B. V (Astronomical Society of India, 2002)
    Over the entire 20th century, Cosmic Rays proved to be the watershed of fundamental knowledge from which poured out several streams that made us familiar with aspects of the universe that could never have been known through ...
  • Hori's method to non-linear coupled oscillators and applications to restricted problem 
    Khan, A; Saha, L. M; Prasad Sarma, T (Astronomical Society of India, 1999)
    Hori's method of solving coupled non-linear differential equations has been used to solve restricted problem of three bodies and non-resonance case has been discussed. For a certain set of values of the parameters, the ...
  • How are the observed frequencies related to solar structure? 
    Christensen-Dalsgaard, J (Astronomical Society of India, 1996)
  • How bright are extra-solar planets? 
    Das, S. R (Astronomical Society of India, 1996)
  • How impossible is topology change? 
    Borde, A (Astronomical Society of India, 1997)
    It is often stated that topology change is impossible in classical general relativity. In particular, it appears to be widely believed that the pleasure of topology change comes at a fixed price: topology – changing space ...
  • How Thick are the Saturn's Rings? 
    Chakrabarti, S. K; Bhattacharyya, A (Astronomical Society of India, 2002-09)
    It has been long thought that the rings of saturn are probably not thicker than a few hundreds of meters. By actually following the motion of particles inside the decaying bending waves of the Saturn's rings and matching the ...
  • HR3040- on the Am track ? 
    Sreedhar Rao, S; Raghavender Rao, C; Kilambi, G. C (Astronomical Society of India, 1999)
    HR 3040 (HD 63589) exhibits pseudo-luminosity effects similar to many a main-sequence Am star, especially a strong Sr II 4077 line indicating a higher luminosity class. Its K-line matches that of A3 V, violet and blue ...
  • The Hubble constant 
    Narlikar, J. V (Astronomical Society of India, 1996)
    In this talk the history of Hubble's constant is reviewed from the discovery of the velocity-distance relation to the present day measurements with the Hubble Space Telescope. The problems encountered in fixing the true ...
  • The Hulse-Taylor binary pulsar PSR 1913+16. 
    Sivaram, C (Astronomical Society of India, 1995)
    The significance of the binary pulsar 1913+16 in establishing evidence for gravitational radiation emission from binary systems is described. It is pointed out that the system has enabled verification of general relativity ...
  • I. A. U Symposium No. 59 on Stellar Stability and Evolution 
    Sinvhal, S. D (Astronomical Society of India, 1973-09)
  • IAU Symposium on Fast Transients in X- and Gamma rays 
    Damle, S. V (Astronomical Society of India, 1975-09)
  • Illumination of the Moon's disc during a total Lunar Eclipse 
    Harrison, E. P (Astronomical Society of India, 1911-01)
  • Image Reconstruction for a Continuously Rotating Coded Mask Camera 
    Shankar, B. T. R; Bhattacharya, D (Astronomical Society of India, 2003)
    We discuss a method for reconstructing the image for Scanning Sky Monitor which is a continuously rotating X-ray coded mask camera aboard the Indian astronomical satellite, ASTROSAT.
  • Image Reconstruction Methods in Radio Astronomy 
    Subramanya, C. R (Astronomical Society of India, 1980-03)
    An observation of a celestial source generally results in data which are insufficient for a unique reconstruction of the desired brightness profiles of the source. Two typical situations are considered here which pertain ...
  • Imaging Fabry-Perot observations of green coronal line during the total solar eclipse of 21 June 2001 
    Chandrasekhar, T; Ashok, N. M; Anandarao, B. G (Astronomical Society of India, 2002-09)
    A Fabry-Perot interferometric experiment on the Green Coronal line was successfully performed during the total solar eclipse of 21 June 2001 from Lusaka, Zambia. Use of a cooled CCD camera permitted 17 separate exposures ...
  • Imaging Fabry-Perot spectroscopic observations on the planetary nebula NGC 1514 
    Muthumariappan, C; Anandarao, B. G; Banerjee, D. P. K (Astronomical Society of India, 1996)
  • Imaging polarimetry of comet Austin 
    Joshi, U. C; Chauhan, J. S; Deshpande, M. R; Sen, A. K; Bhatnagar, A. K (Astronomical Society of India, 1993)
    Comet Austin (1989c) was observed during April and May 1990 when its phase was between 106 deg and 110 deg. No unusual activity in the form of jet is seen in the polarization map. Polarization is low near the nucleus and ...
  • Imaging studies in the near infrared region 
    Anandarao, B. G (Astronomical Society of India, 1993)
    The advent of array detectors has given a tremendous boost to the detection capabilities in the near infrared region over the last 5 years. A variety of instrumentation has been and is being built around these panoramic ...

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