Publications of Astronomical Society of India: Recent submissions

  • CCD observations of eruptive prominence of March 19, 1994 
    Uddin, W; Gaur, V. P; Pande, M. C (Astronomical Society of India, 1998)
    The observations of a limb prominence (N 26; E 90) were carried out with the help of a Peltier cooled CCD system. In the beginning the prominence was observed as quiescent prominence with compact helical structure. Rise, ...
  • An improved gnomon 
    Ratna, V (Astronomical Society of India, 1998)
    During a project work done by a group of students at senior secondary stage with the guidance of the author, the vertical pillar kind of gnomon has been improved upon. Whereas the traditional gnomon can measure altitude ...
  • Some thoughts on Bhadra Chowkan and Ankapasha in Indian Mathematics 
    Ghanekar, B (Astronomical Society of India, 1998)
    It is shown how the Indian concepts about bhadra Chowkon (Magic Sqares) can be utilized for developing new computer algorithms and how Indian Ankapasha (series) technique can be used for computing trignometric functions
  • The calendric astronomy of the vedas 
    Sidharth, B. G (Astronomical Society of India, 1998)
    The Rig Veda described both a solar and a luni-solar calendrical scheme. Once the precision of Rig Vedic astronomy is recognized, the Great Cosmis Cycles of ancient India can be interpreted meaningfully.
  • Vedic astronomers 
    Holay, P. V (Astronomical Society of India, 1998)
    The aim of this paper is to show that natural origin of Hindu astronomy in remote antiquity is the Indian environment of six seasons of monsoon climate. The deities and demons described in the Rigveda are either astronomical ...
  • Antiquity of the vedic calendar 
    Abhyankar, K. D (Astronomical Society of India, 1998-03)
    Taking guidance from Vedanga jyotis, it is found that in ancient India the sacrificial year started near the winter solstice. As the position of the winter solstice retrogrades by 1 degree in about 71 years due to the ...
  • The distinctive features of Rik-Jyotisha 
    Holay, P. V (Astronomical Society of India, 1998-03)
    There are six appendices to the veda, which include grammar, Glossary, of words etc. jyotisha is one of those appendices. It mainly states the positions of the sun and moon and gives the method of making calendars required ...
  • Samanta Chandra Sekhar : The great naked eye astronomer 
    Naik, P. C; Satpathy, L (Astronomical Society of India, 1998-03)
    Samanta Chandra Sekhar (1835-1904), popularly known as Pathani Samabta in Orissa, worked in astronomy following traditional methods, completely unaware of the telescope and other aids developed in the west. He took ...
  • Spectrophotometry of the comets C /2000 WM 1(LINEAR) and C /2002 C1 (Ikeya-Zhang) 
    Sanwal, B. B; Kumar, B; Singh, M (Astronomical Society of India, 2002-12)
    Spectrophotometric observations of the coma of the comets Cj2000 WM1 (LINEAR) and Cj2002 C1 (Ikeya-Zhang) were taken during Nov, Dec 2001 and Mar, Apr 2002 respectively with 104-cm telescope of the State Observatory, ...
  • On mass and velocity distributions in members of star clusters: An analytical approach 
    Chatterjee, S; Kumar, B; Sagar, R (Astronomical Society of India, 2002-12)
    Dynamical evolution of stellar mass distribution in star clusters is analysed by considering simultaneously the effects of dynamical friction, stochastic heating and the gravitational potential due to mass distribution ...
  • Photometric Catalogs of Four EMSS Poor Clusters of Galaxies 
    Sharma, M; Prabhu, T. P (Astronomical Society of India, 2002-12)
    We have used the 2.3-meter Vainu Bappu Telescope to perform CCD imaging of X-ray-selected poor clusters of galaxies. Our sample consists of four X-ray luminous clusters in the Einstein Observatory Extended Medium ...
  • 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 ...
  • Evaluation of Lijiang Gaomeigu site for astrophysical observation 
    Tan, H; Cen, X; Qian, T; Wang, J (Astronomical Society of India, 2002-12)
    The work on the site testing at the Gaomeigu village Lijiang country in the northwest of Yunnan province, was started in 1994 after the completion of the investigation on optical astronomical observatory site survey over ...
  • The Distribution of the Quiet Sun Photospheric Magnetic Flux 
    Srikanth, R; Singh, J; Bagare, S. P (Astronomical Society of India, 2002-12)
    A gradient-based tessellating algorithm is used to study the magnetic field structure of the quiet Sun photosphere using SoRO full disk magnetograms. We find that the field is not uniformly distributed, but parcelled ...
  • Geomagnetic storms with H ≥ 400nT during 1979-99 
    Kumar, S; Yadav, M. P (Astronomical Society of India, 2002-12)
    The effect of solar features on geospheric conditions leading to ninety nine geomagnetic storms (OMSs) with H~400 nT and Ap;::;:20 have been investigated using interplanetary magnetic field (IMF) , solar wind plasma (SWP) ...
  • Limited Seeing Measurements at Mount Abu Infrared Observatory 
    Ashok, N. M; Banerjee, D. P. K (Astronomical Society of India, 2002-12)
    Measurements of atmospheric seeing for the Mount Abu Infrared Observatory, Gurusikhar are presented. Observations made with a differential image motion monitor, between 6 December 1999 to 28 April 2000, give an ...
  • Techniques for Achieving Higher Spatial Resolution 
    Sridharan, R (Astronomical Society of India, 2002-09)
    The application of speckle and interferometric techniques for imagmg small scale solar features is studIed In detail. A computer program(speckle code) was dt!v(-joped to analyze the speckle data. The capability of the ...
  • Scattering of light by periodic structure with randomness 
    Chatterjee, S; Vani, V. C (Astronomical Society of India, 2002-09)
  • Imaging with the Scanning Sky Monitor on ASTROSAT 
    Bhattacharya, D; Shankar, B. T. R (Astronomical Society of India, 2002-09)
    This paper describes the status of the development of software for coded mask imaging with the Scanning Sky Monitor aboard the proposed Indian multi wavelength astronomy satellite ASTROSAT.
  • Scanning Sky Monitor (SSM) on ASTROSAT - A status report 
    Seetha, S (Astronomical Society of India, 2002-09)
    The scanning sky monitor (SSM) on the ASTROSAT is an instrument to be used for detecting and locating new x-ray transients and to study the long term behavior of the known bright x-ray sources in the celestial sphere. ...

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