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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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  • Helium abundance in the solar envelope 
    Basu, S (Astronomical Society of India, 2000)
  • HER X-1 observed in a low state 
    Paul, B; Agrawal, P. C; Rao, A. R; Manchanda, R. K (Astronomical Society of India, 1996)
    The X-ray pulsar Her X-1 was observed on 14th December, 1992 with two balloon borne Xenon filled multicell proportional counters (XMPC) from Hyderabad, India. The source intensity was found to be very low in the 20-100 KeV ...
  • HI deficiency in groups: what can we learn from Eridanus ? 
    Omar, A (Astronomical Society of India, 2004-07)
    The HI content of the Eridanus group of galaxies is studied using the GMRT observations and the HIPASS data. A significant Hi deficiency up to a factor of 2 2 - 3 is observed in galaxies in the Eridanus group. The deficiency ...
  • High angular resolution structures in the dust shell surrounding WR 104 from lunar occultation observations at 2.2 µm 
    Mondal, S; Chandrasekhar, T (Astronomical Society of India, 2002-09)
    A rare event of lunar occultation of a Wolf-Rayet star (WRI04) in the near IR K-band (2.2 micron) is reported. AnalYSis of the occultation light curve shows a fully resolved dust envelope departing significantly from a ...
  • High Energy Gamma-Ray Pulsars 
    Ramanamurthy, P. V (Astronomical Society of India, 1997)
    To date we know the existence of six high energy gamma-ray (HEGR) pulsars and a possible seventh candidate, besides a solitary low energy gamma-ray pulsar. In this paper, we briefly summarize the observations on the seven ...
  • A High Energy Photon Detector Simulation System 
    Sinha, S (Astronomical Society of India, 2003)
    A high energy photon detector simulation software based on detailed Monte Carlo method starting from first principles is under development. The current status of this endeavour and some of the results obtained recently ...
  • A high Galactic latitude search for pulsars 
    Joshi, B. C; Burgay, M; Lyne, A. G; Manchester, R. N; Possenti, A; Camilo, F; Amico, N. D; Kramer, M (Astronomical Society of India, 2002-09)
    Millisecond pulsars (MSPs) are an important class of radio pulsars. Their observed spatial distribution is flux limited and is nearly isotropic. Many such pulsars have been observed at high Galactic latitudes. The ...
  • High Resolution Coronal Intensity and Polarization Measurements 
    Streete, John. L; Lacey, Leon. B (Astronomical Society of India, 1980-12)
    The total eclipse of February 16, 1980 was successfully photographed with the High Altitude Observatory's coronal camera from a site in Palem, India. The purpose of the experiment was to obtain, with high spatial resolution, ...
  • High resolution interferometry of astrophysical objects 
    Raju, K. P (Astronomical Society of India, 1993)
    The thesis comprises studies on two distinctly diverse astrophysical situations; one on the outer envelope of a late-type star at its main sequence stage (solar corona), the other on the ionized cloud surrounding an ...
  • High resolution IRAS maps of spiral galaxies 
    Rengarajan, T. N; Ghosh, S. K; Verma, R. P (Astronomical Society of India, 1993)
    High resolution maps of nine spiral galaxies have been generated in the four IRAS bands using the High Resolution (HIRES) routine. These are used in conjunction with maps in H-alpha, CO, HI, radio continuum etc. to study ...
  • High resolution mapping in the far-infrared band 
    Rengarajan, T. N (Astronomical Society of India, 1993)
    The earth's atmosphere is opaque to the far-infrared (far-IR) radiation) and hence observations have to be carried out at altitudes above 12 km using telescopes transported by aircraft, balloon or satellite. The restriction ...
  • A high resolution spectroscopic study of XX Ophiuchi 
    Goswami, A; Kameswara Rao, N; Lambert, D. L (Astronomical Society of India, 2001)
    The star XX Oph has been known to exhibit peculiar spectral variabilities since the work of Merrill in 1924. A high resolution spectroscopic study of the XX Oph spectra taken in July 1996 and later in June 1997 also exhibit ...
  • High Resolution Spectroscopy of QY Sge 
    Kameswara Rao, N; Goswami, A; Lambert, D. L (Astronomical Society of India, 2002-09)
    High resolution spectral analysis of QY Sge, a post AGB star is presented here. The spectrum of QY Sge is characterized by three major components: absorption lines representative of a G supergiant, sharp emission lines ...
  • High resolution spectroscopy with a 10-m class telescope 
    Giridhar, S (Astronomical Society of India, 2000)
  • High Resolution Spectroscopy with Submillimeter-Wave 
    Kumar, V; Dave, H (Astronomical Society of India, 2003)
    In order to explain the characteristic features of planetary atmosphere, detection and precise measurements of environmentally important gases such as CO, CIO, No becomes necessary. Since most of the polyatomic molecules ...
  • A high-speed two-star photometer 
    Venkat Rao, G (Astronomical Society of India, 1990-03)
    Design and performance of a high-speed two-star photometer are presented in this paper. It is an ideal instrument for investigations of time variations of variable stars
  • The highest prominence on record 
    Evershed, J (Astronomical Society of India, 1917)
  • Highlights from the observatories 
    Saikia, D. J (Astronomical Society of India, 2005-03)
  • Highlights of observations of Total Solar Eclipse of October 24, 1995 
    Singh, J (Astronomical Society of India, 1996)
  • Highlights of Symposium on VLBI 
    Joshi, M. N (Astronomical Society of India, 1978-12)

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