Publications of Astronomical Society of India: Recent submissions

  • Neutron stars : Seen my way 
    Kundt, W (Astronomical Society of India, 2001)
    An unconventional survey is presented of the observable properties of neutron stars and of all astrophysical phenomena possibly related to them, such as their pulsing, clock irregularities, bursting, flickering, and ...
  • Supernova remnants: GMRT based results 
    Bhatnagar, S (Astronomical Society of India, 2001)
  • Multiwavelength studies of galactic black-hole candidates 
    Yadav, J. S (Astronomical Society of India, 2001)
    One of the Galactic Black-hole Candidates GRS 1915+105 has shown spectacular variability on various time scales in X-ray, Infrared (IR) and Radio wavelengths and has been extensively studied in multiwavelengths during last ...
  • Multiwavelength observations of interstellar dust 
    Murthy, J (Astronomical Society of India, 2001)
    Interstellar dust is important in virtually every aspect of Galactic and extragalactic astronomy - whether one simply wants to correct for its effects or to study galactic dynamics and processes. Interstellar dust is found ...
  • Young open clusters and star formation 
    Piskunov, A. E (Astronomical Society of India, 2001)
  • Study of Es occurrences during meteor shower periods at Hyderabad by using FM radio signals 
    Yellaiah, G; Suresh, K; Raghavender, B (Astronomical Society of India, 2001)
    Sporadic-E occurrences are found to be more during meteor shower periods when compared to non-shower periods. Meteor activity can be estimated by recording the radio signals reflected by meteor trails. In the present paper, ...
  • Solar and interplanetary signatures of intense geomagnetic storms during 1997-2000 
    Srivastava, N (Astronomical Society of India, 2001)
    During the ascending phase of the recent solar cycle, the solar and interplanetary signatures of coronal mass ejections (CMEs) observed by Large Angle Spectrometric Coronagraphs (LASCO) aboard SOHO, have been examined. ...
  • Quasi-stellar objects, galaxies, and the big-bang 
    Thakur, R. K (Astronomical Society of India, 1997)
    This paper has been written in a highly personal vein. It’s a resume of the very modest effort made by the author and his students in understanding some aspects of extragalactic astronomy and astrophysics during the former’s ...
  • Change of level population density with time in the solar quiet chromospheric atmosphere 
    Barman, S. K; Kariyappa, R (Astronomical Society of India, 2001)
    Employing a law of weak acoustic wave, the ratio of population density N2/N1 with time for the Ca II H and K lines appropriate for the solar quiet chromosphere have been calculated. This has been done by solving the equations ...
  • My experiences as an astronomer and a survey of binary star research carried out at CASA 
    Sarma, M. B. K (Astronomical Society of India, 1997)
  • Dynamical properties of flare Loops of 27 November 1996 
    Uddin, W; Lalan, P (Astronomical Society of India, 2001)
    We observed a post-flare loop system in Hα on the west limb on 27 November 1996 which started earlier than 05:07:20 UT in NOAA active region 7997 (N04, W89). The post-flare loops were associated with long duration x-ray ...
  • Solar rotation rate from minimum to maximum of activity cycle 
    Jain, K; Tripathy, S. C; Bhatnagar, A; Kumar, B (Astronomical Society of India, 2001)
    Using helioseismic data from SOI/MDI and GONG for the current solar cycle 23, from solar minimum to near maximum phase, we report here on the temporal variation of the rotation rate.
  • On solar coronal heating 
    Pandey, K; Narain, U (Astronomical Society of India, 2001)
    We review heating of solar corona by magnetic fields/currents. Our emphasis is on micro- and nano-flares. In case of a microflare the energy release is ~1026 ergs whereas in a nanoflare ~1023 - 1025 ergs of energy is ...
  • Emission from GRBs and their afterglows : Indian observations 
    Sagar, R (Astronomical Society of India, 2001)
    The study of Gamma-ray bursts, electromagnetically the most luminous events in the Universe though only for a few seconds, was revolutionized in 1997 when the Italian-Dutch X-ray satellite BeppoSAX started providing the ...
  • Research, my passion 
    Bhatnagar, K. B (Astronomical Society of India, 1997)
  • Nonlinear Propagation of Intense Electromagnetic Waves in Quasar and Pulsar Plasmas 
    Gangadhara, R. T (Astronomical Society of India, 1997)
    We present the results of analytical as well as numerical investigations of radiation-plasma interaction instabilities in astrophysical plasmas. We consider the stimulated Raman and Compton scattering in the continuum ...
  • On the EUV Line Diagnostics From N III Solar Ion 
    Gupta, A. K; Mohan, A; Dwivedi, B. N (Astronomical Society of India, 1997)
    We present new calculations for N III ion for diagnostics of solar plasma. The atomic model comprising the first 15 energy levels is considered for evaluating the line emissivities as a function of electron density and ...
  • Equivalent Widths of CA II Triplet Lines of a Few Unidentified IRAS Sources 
    Iyengar, K. V. K (Astronomical Society of India, 1997)
    We report optical infrared spectroscopy of sixteen bright IRAS "unidentified" sources with circumstellar envelopes in the region of the Ca II triplet lines. Several of these sources show low equivalent widths for the Ca ...
  • Do Flat Rotation Curves Include Non-Keplerian Motions? 
    Krishan, V (Astronomical Society of India, 1997)
    In an earlier paper (Prabhu and Krishan 1994) a model of the flat rotation curves of galaxies has been given. This model attempts to explain the rotation curves without invoking dark matter, instead it depends on certain ...
  • Geometrical and physical description of the two-body problem in Maneff's gravitational field 
    Stoica, C; Mioc, V (Astronomical Society of India, 1997)
    A qualitative study of the two-body problem in Maneff's gravitational field is being performed by representing the motion in the (1/r, r-plane. The phase trajectories are found to be only conic sections(or arcs of them). ...

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