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Browsing IIAP Publications by Title

Browsing IIAP Publications by Title

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  • Venkatakrishnan, P (D. Reidel Publishing Co., 1986-02)
    Even the very slow expansion of a star's radius due to evolution on the Main Sequence is shown to be supercritical for cool stars without coronae. Since steady sphericaily-symmetric supercitical solutions are theoretically ...
  • Sinha, K. P; Sivaram, C; Sudarshan, E. C. G (Springer, 1976)
    Some cosmological consequences of the superfluid vacuum state developed previously by the authors are discussed, particularly with regard to the initial stages of the universe. The transition temperature of the hadronic ...
  • Paniveni, U; Krishan, V; Singh, J; Srikanth, R (Cambridge University Press, 2011-08)
    We study the complexity of supergranular cells using the intensity patterns obtained at the Kodaikanal solar observatory during the solar maximum. Our data consists of visually identified supergranular cells, from which a ...
  • Paniveni, U; Krishan, V; Singh, J; Srikanth, R (Cambridge University Press, 2011-08)
    We study the complexity of supergranular cells using the intensity patterns obtained at the Kodaikanal solar observatory during the solar maximum. Our data consists of visually identified supergranular cells, from which a ...
  • Murthy, M. V. N (Indian Institute of Astrophysics, 1988)
    We review the reported neutrino events from the supernova SN 1987A and present a critical analysis of these events for their implications on the mechanism of stellar collapse as well as for neutrino physics.
  • Bhatt, H. C (Indian Institute of Astrophysics, 1988)
    Results obtained from infrared observations of SN 1987A have been summarized. The supernova developed near-infrared excesses with a characteristic temperature ~1250 k beginning around March 15, 1987. Infrared speckle ...
  • Datta, B (Indian Academy of Sciences, 1997-11)
  • Sivaraman, K. R; Prabhu, T. P; Anupama, G. C; Schmeer, P; Smith, H; Royer, R; Lubcke, G; Villi, M; Cortini, G (Smithsonian Astrophysical Observatory, 1991-04)
  • Prabhu, T. P (Indian Academy of Sciences, 1995)
  • Bose, Subhash; Kumar, Brijesh; Sutaria, F. K; Kumar, Brajesh; Roy, Rupak; Bhatt, V. K; Pandey, S. B; Chandola, H. C; Sagar, R; Misra, Kuntal; Chakraborti, Sayan (Oxford University Press, 2013-08-11)
    We present densely sampled UBVRI/griz photometric and low-resolution (6–10 Å) optical spectroscopic observations from 4 to 270 d after explosion of a newly discovered Type II SN 2012aw in a nearby (∼9.9 Mpc) galaxy M95. ...
  • Thejappa, G (Indian Institute of Astrophysics, 1988)
    A Violent shock is formed at the site of the collision of inner and outer cores of a collasping star and the supernova explosion is born. Here we briefly review the evolution of the shock from its birth until its death.
  • Bhatt, H. C; Datta, B (Royal Astronomical Society, 1989-04)
    Using available observational data on supernova SN 1987A, firm quantitative lower limits on the rotation period of the central pulsar (assuming the pulsar luminosity to power the supernova light curve) are derived. It is ...
  • Chakradhari, N. K; Sahu, D. K; Srivastav, S; Anupama, G. C (Oxford University Press on behalf of the Royal Astronomical Society, 2014-09-11)
    We present optical and UV analysis of the luminous Type Ia supernova SN 2012dn covering the period from ∼−11 to +109 d with respect to the B-band maximum, which occurred on JD 245 6132.89 ± 0.19, with an apparent magnitude ...
  • Rajamohan, R; Pati, A. K (International Astronomical Union, 1980)
  • Rajamohan, R; Pati, A. K (Indian Academy of Sciences, 1980-12)
    We put forward evidence that relates the phenomenon of the chemically peculiar stars of the upper main sequence to Supernovae explosions in young clusters. In the Upper Scorpius region we find that a supernova shell has ...
  • Kochhar, R. K (Kluwer Academic Publishers, 1989-07)
    It is argued that all SNI come from short-lived stars and do not occur in a typical, isolationist, gas-free early-type galaxy. SNI occur only in those galaxies which accrete gas and form stars. SN properties of E/SOs are, ...
  • Kumar, B; Pandey, S. B; Pandey, Kanhaiya L; Anapuma, G. C; Surdej, J (Societe Royale des Sciences de Liege, 2018-04)
    The upcoming 4-m International Liquid Mirror Telescope (ILMT) facility will perform deep imaging (in single scan g 0 ∼22 mag) of a narrow strip of sky each clear night in the Time Delayed Integration mode. A cadence of ...
  • Mishra, T; Pai, R. V; Ramanan, S; Luthra, M. S; Das, B. P (The American Physical Society, 2009-10)
    We report our findings on quantum phase transitions in cold bosonic atoms in a one dimensional optical lattice using the finite size density matrix renormalization group method in the framework of the extended Bose-Hubbard ...
  • Anathpindika, S (EDP Sciences, 2009-09)
    It has long been suggested that shocks might play an important role in altering the form of the interstellar medium (ISM). Shocks enhance gas density and sufficiently dense regions may become self gravitating. Potential ...
  • Anathpindika, S (EDP Sciences, 2009-09)
    Aims. In this second paper of the sequel of two papers, we continue to investigate the problem of molecular cloud (MC) collision. The companion paper to this one considered highly supersonic cloud collisions and examined ...

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