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Browsing IIAP Publications by Title

Browsing IIAP Publications by Title

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  • Gopalswamy, N (D. Reidel Publishing Co., 1986-06)
    The shadow events in the dynamic spectra of Jovian decametric emission are explained as the result of interaction between electron bunches responsible for S and L emissions. The relevant dispersion relation is derived for ...
  • Sampoorna, M; Nagendra, K. N; Stenflo, J. O (Astronomical Society of the Pacific, 2009-06)
    We present the theory of polarized partial frequency redistribution (PRD) in the presence of arbitrary magnetic fields. Starting from the classical theory of Bommier & Stenflo (1999) we derive the laboratory frame PRD ...
  • Panini, S. S; Nayak, M; Gupta, Rajkumar; Pradhan, Paresh C.; Majhi, Arindam; Narendranath, S; Sreekumar, P (SPIE-Society of Photo-Optical Instrumentation Engineers, 2018-10)
    W  /  B4C multilayer (ML) mirrors with varying periodicities   (  d  )    =  1.6 to 5.4 nm are tested for rapid thermal and temporal stability, which are required for space-based x-ray telescopes for astronomy. The aging ...
  • Banyal, R. K; Ravindra, B (Elsevier B.V., 2011-08)
    We present a detailed thermal and structural analysis of a 2 m class solar telescope mirror which is subjected to a varying heat load at an observatory site. A 3-dimensional heat transfer model of the mirror takes into ...
  • Taam, R. E; Deloye, C. J; Sengupta, S (Astronomical Society of the Pacific, 2009-08)
    The thermal evolution of arbitrarily degenerate stellar models for the mass losing component in AM CVn binary systems formed through the white dwarf evolutionary channel is investigated for a range of initial orbital periods ...
  • Sivaram, C; Arun, K (Bentham Open, 2011-08)
    There is a lot of current interest in sources of gravitational waves and active ongoing projects to detect such radiation, such as the LIGO project. These are long wavelength, low frequency gravitational waves. LISA would ...
  • Sivaram, C; Arun, K (Bentham Open, 2011-08)
    Thermal gravitational waves can be generated in various sources such as, in the cores of stars, white dwarfs and neutron stars due to the fermion collisions in the dense degenerate Fermi gas [1-3]. Such high frequency ...
  • Joarder, P. S; Gokhale, M. H; Venkatakrishnan, P (Kluwer Academic Publishers, 1987-09)
    The authors investigate the effects of radiative heat losses and thermal conductivity on the hydromagnetic surface waves along a magnetic discontinuity in a plasma of infinite electrical conductivity. They show that the ...
  • Nieves, Jose. F; Palash, B. Pal (The American Physical Society, 1995-05)
    In general the zero momentum limit of thermal self-energies calculated in perturbation theory depends on the order in which the time and the space components of the momentum are taken to zero. We show that this is an ...
  • Krishna Prasad, S; Singh, J; Ichimoto, K (IOP Publishing, 2013-03-10)
    The thermal structure of a coronal loop, both along and across the loop, is vital in determining the exact plasma heating mechanism. High-resolution spectroscopic observations of the off-limb corona were made using the ...
  • Hiremath, K. M; Akshatha, B. B (Springer, 2010)
    We use SOHO/MDI continuum images to measure the average thermal structure of bipolar spots during their initial appearance. Although the average thermal structure of penumbrae is independent of sunspot size and life span, ...
  • Sastri, J. H; Rao, H. N. R; Somayajulu, V. V; Chandra, H (American Geophysical Union, 1994-05)
    Coordinated measurements were made on two nights in December 1992 of thermospheric temperature with a Fabry-Perot Interferometer (FPI) at Kavalur ( dip∼ 9.5° N) and of F-layer height with ionosondes at Trivandrum ( dip∼ ...
  • Baliga, J. K; Mallik, D. C. V (International Astronomical Union, 2006)
    In this work we attempt to find Planetary Nebulae(PNe) belonging to the thick disk population of the Galaxy, based on the proper motion and radial velocity data of the objects available in literature, by using a simulation ...
  • Satyamoorthy, R; Narayandass, Sa. K; Balasubramanian, C; Mangalaraj, D (Indian Institute of Astrophysics, Bangalore, 1991)
    Rare earth oxides and fluorides are well known for their refractory nature and chemical stability and so they find considerable application in electronic and optical devices. The present investigation deals with the optical ...
  • Parthasarathy, M (American Astronomical Society, 2024-01)
    I found thirty high velocity stars that have large V ‑ K values compared to standard stars of similar spectral types indicating the possible presence of late-type companion stars. All these thirty stars are relatively ...
  • Sreedharan, T. D (Indian Institute of Astrophysics, Bangalore, 1995)
  • Reddy, B. E; Lambert, D. L (University of Chicago Press, 2005-06)
    We report on spectroscopic analyses of three K giants previously suggested to be Li-rich: IRAS 12327-6523, 13539-4153, and 17596-3952. High-resolution optical spectra and the LTE model atmospheres are used to derive the ...
  • Ganesh, K. S; Bappu, M. K. V (Kodaikanal Observatory, 1967-10)
  • Singh, M; Dhar, A; Mishra, T; Pai, R. V; Das, B. P (American Physical Society, 2012-05)
    The Mott-insulator-superfluid transition for ultracold bosonic atoms in an optical lattice has been extensively studied in the framework of the Bose-Hubbard model with two-body on-site interactions. In this paper, we analyze ...
  • Muthumariappan, C (Springer, 2010-03)
    Interstellar extinction curves obtained from the ‘extinction without standard’ method were used to constrain the dust characteristics in the mean ISM (RV = 3.1), along the lines of sight through a high latitude diffuse ...

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