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Browsing IIAP Publications by Title

Browsing IIAP Publications by Title

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  • Pathak, A; Pradhan, A. C; Sujatha, N. V; Murthy, J (Wiley-Blackwell, 2011-04)
    We present a survey of interstellar O VI absorption in the Large Magellanic Cloud (LMC) towards 70 lines of sight based on Far Ultraviolet Spectroscopic Explorer (FUSE) observations. The survey covers O VI absorption in a ...
  • Bappu, M. K. V; Parthasarathy, M; Scaria, K. K (Indian Institute of Astrophysics, 1978)
    We have continued the survey for red stars in the direction of the large Magellanic Cloud using the technique of ultra-low dispersion spectroscopy. This paper which is the second one on the series lists 706 stars located ...
  • Bappu, M. K. V; Parthasarathy, M; Scaria, K. K (Indian Institute of Astrophysics, Bangalore, 1985-11)
    We have continued the survey for red stars in the direction of the Large Magellanic Cloud using the technique of ultra-low dispersion spectroscopy. In this paper we list 310 red stars located north of L M C bar. Finding ...
  • Bappu, M. K. V; Parthasarathy, M; Scaria, K. K (Indian Institute of Astrophysics, Bangalore, 1977)
    We have commenced a survey of red stars in the direction of the Large Magellanic Cloud using the technique of ultra-low dispersion spectroscopy. This first paper is a listing of the red stars in the 30 Doradus region for ...
  • Bhattacharjee, P; Alam, J. E; Sinha, B; Raha, S (The American Physical Society, 1993-11-15)
    The question of the survivability of quark nuggets against the process of baryon evaporation from their surfaces is studied within the context of a dynamical model, namely, the chromoelectric flux-tube fission model of ...
  • Dutta, Jayanta; Sur, Sharanya; Stacy, Athena; Bagla, Jasjeet Singh (Cambridge University Press, 2018-05)
    In our earlier studyDutta (2016a), it has been shown that a number of primordial protostars (the ‘first stars’ in the Universe, also known as Population III or Pop III stars) are being ejected from the cluster of their ...
  • Singh, V; Risaliti, G; Braito, V; Shastri, P (Wiley-Blackwell, 2012-01)
    We present the 0.5–50 keV Suzaku broad-band X-ray spectral study of the Compton-thick active galactic nucleus (AGN) in NGC 5135. The Suzaku observation provides the first detection of NGC 5135 above 10 keV that allowed us, ...
  • Mayank, Prateek; Vaidya, Bhargav; Mishra, Wageesh; Chakrabarty, D (American Astronomical Society, 2024-01)
    Coronal mass ejections (CMEs) are primary drivers of space weather, and studying their evolution in the inner heliosphere is vital to prepare for a timely response. Solar wind streams, acting as background, influence their ...
  • Krishan, V (Blackwell Publishing, 2009-12)
    The formation of the Sweet–Parker current sheet, in fact a slab, is studied for a partially ionized plasma. The effects arising from the ion–neutral drag, the ambipolar diffusion, the resistivity resulting from electron–neutral ...
  • Rawat, Nikita; Pandey, J. C; Joshi, Arti; Scaringi, Simone; Yadava, Umesh (Oxford University Press on behalf of Royal Astronomical Society, 2022-12)
    Based on the X-ray observations from XMM–Newton and Swift, and optical observations from Transiting Exoplanet Survey Satellite (TESS) and AAVSO, we present temporal and spectral properties of probable intermediate polar ...
  • Goswami, A; Ramadurai, S; Duorah, H. L (Springer Netherlands, 1992-02)
    The synthesis of Al-26 during combined hydrogen and helium-burning processes in high temperature and density conditions is studied. The possible sites for these processes are believed to be the neutron star surfaces where ...
  • Sastri, J. H; Ramesh, K. B; Ramamoorthy, K. S (Indian Institute of Astrophysics, Bangalore, 1985-11)
    An experimental set-up developed for continuous recording of the phase path variations of reflections at normal incidence from discrete regions of the terrestrial ionosphere is described. Salient features of the system ...
  • Shastri, P; Gomez, E. J; Gupta, M; Madejski, G (Cambridge University Press, 2015-03)
    We investigate the systematics of the properties of highly relativistic jets at multiple frequencies, including Fermi, and MOJAVE data. We test the hypothesis that the blazar divide constitutes a dichotomy. We also explore ...
  • Tomaschitz, R (World Scientific, 1998-04)
    Superluminal signal transfer is studied in the context of a preferred cosmic frame of reference provided by the galactic background. The receding galaxies constitute a frame of absolute rest, in which the energy of tachyons ...
  • Cano, Z; Bersier, D; Guidorzi, C; Margutti, R; Svensson, K. M; Kobayashi, S; Melandri, A; Wiersema, K; Pozanenko, A; van der Horst, A. J; Pooley, G. G; Fernandez-Soto, A; Castro-Tirado, A. J; de Ugarte Postigo, A; Im, M; Kamble, A. P; Sahu, D. K; Alonso-Lorite, J; Anupama, G. C; Bibby, J. L; Burgdorf, M. J; Clay, N; Curran, P. A; Fatkhullin, T. A; Fruchter, A. S; Garnavich, P; Gomboc, A; Gorosabel, J; Graham, J. F; Gurugubelli, U. K; Haislip, J; Huang, K; Huxor, A; Ibrahimov, M; Jeon, Y; Jeon, Y. B; Ivarsen, K; Kasen, D; Klunko, E; Kouveliotou, C; LaCluyze, A; Levan, A. J; Loznikov, V; Mazzali, P. A; Moskvitin, A. S; Mottram, C; Mundell, C. G; Nugent, P. E; Nysewander, M; O’Brien, P. T; Park, W. K; Peris, V; Pian, E; Reichart, D; Rhoads, J. E; Rol, E; Rumyantsev, V; Scowcroft, V; Shakhovskoy, D; Small, E; Smith, R. J; Sokolov, V. V; Starling, R. L. C; Steele, I; Strom, R. G; Tanvir, N. R; Tsapras, Y; Urata, Y; Vaduvescu, O; Volnova, A; Volvach, A; Wijers, R. A. M. J; Woosley, S. E; Young, D. R (Wiley-Blackwell, 2011-05)
    We present ground-based and Hubble Space Telescope optical observations of the optical transients (OTs) of long-duration Gamma Ray Bursts (GRBs) 060729 and 090618, both at a redshift of z= 0.54. For GRB 060729, bumps are ...
  • Mondal, Chayan; Subramaniam, A; George, Koshy (Indian Academy of Sciences, 2021-10)
    We present an ultra-violet study of two nearby dwarf irregular galaxies WLM and IC 2574, using the Far-UV and Near-UV data from the Ultra-Violet Imaging Telescope (UVIT). We used the F148W band Far-UV images and identified ...
  • Kapoor, R. C (University of Science and Technology of China, 2022-09)
    Meteor phenomena are always fascinating and capture popular attention. This paper reports results of a search for references to and records of meteor showers observed in the Indian region, until the close of the nineteenth ...
  • Kapoor, R. C (National Astronomical Research Institute of Thailand, 2021-11)
    This paper discusses the observations of the Great March Comet of 1843 made from India. The observers were at various locations and the newly formed observatories participated in the astronomical observations spread over ...
  • Sinha Ray, Suvonil; Ghosh, A; Chattopadhyay, S; Chaudhuri, R. K (American Chemical Society, 2016-07-28)
    Recently a state-specific multireference perturbation theory (SSMRPT) with an improved virtual orbitals complete active space configuration interaction (IVO-CASCI) reference function has been proposed for treating electronic ...
  • Chaudhuri, R. K; Chattopadhyay, S; Mahapatra, U. S (American Chemical Society, 2013-09-12)
    Theoretical investigations of the super-heavy elements (SHEs) are extremely challenging and are often the sole source of useful chemical information. Relativistic Fock-space multireference coupled cluster (RFS-MRCC) ...

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