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  • Glowing tributes paid to Bappu 
    Newspaper Clippings (Newspaper Clippings, 1982-08-25)
  • GMRT detection of H I absorption in the high-redshift red quasar 3C 190 
    Ishwara-Chandra, C. H; Anantharamaiah, K. R; Dwarakanath, K. S (Astronomical Society of India, 2002-09)
    We report the GMRT detection of H I absorption in the high_ redshlft red quasar 30 190 at a redshift of 1.1946. The most interesting result is that the peak of the H I absorption is blueshifted by I'W 250 kms-1 with respect ...
  • A GMRT H I imaging survey of the ERIDANUS group of galaxies 
    Omar, A; Dwarakanath, K. S; Anantharamaiah, K. R (Astronomical Society of India, 2002-09)
    This project aims to image a subset of galaxies in the nearby Eridanus group in H I emission and in radio continuum using the GMRl'. The typical resolution of H I images will be ",1 kpc with a 30" sensitivity to H I ...
  • GMRT H I study of giant low surface brightness galaxies 
    Mishra, A; Kantharia, N. G; Das, Mousumi; Omar, A; Srivastava, D. C (Oxford University Press on behalf of the Royal Astronomical Society, 2017-01)
    We present H I observations of four giant low surface brightness (GLSB) galaxies UGC 1378, UGC 1922, UGC 4422 and UM 163 using the Giant Meterwave Radio Telescope. We include H I results on UGC 2936, UGC 6614 and Malin 2 ...
  • GMRT Neutral Hydrogen Observations of the Sombrero Galaxy 
    Sengupta, C; Balasubramanyam, R; Bekki, K (Astronomical Society of India, 2003)
  • GMRT Observations of the 2006 outburst of the Nova RS Ophiuchi: First detection of emission at radio frequencies < 1.4 GHz 
    Kantharia, N. G; Anupama, G. C; Prabhu, T. P; Ramya, S; Bode, M. F; Eyres, S. P. S; O'Brien, T. J (University of Chicago Press, 2007-10)
    The first low radio frequency (<1.4 GHz) detection of the outburst of the recurrent nova RS Ophiuchi is presented in this Letter. Radio emission was detected at 0.61 GHz on day 20 with a flux density of 48 mJy and at 0.325 ...
  • GMRT study of extremely faint dwarf irregular galaxies 
    Begum, A; Chengalur, J. N (Astronomical Society of India, 2004-09)
    We present results of deep, high velocity resolution (~1.6 km s-1) Giant Metrewave Radio Telescope (GMRT) HI 21 cm-line observations of a sample of extremely faint (MB > -12.5) dwarf irregular galaxies. unlike previous ...
  • A GMRT study of Seyfert galaxies NGC 4235 and NGC 4594: evidence of episodic activity? 
    Kharb, P; Srivastava, S; Singh, V; Gallimore, J. F; Ishwara-Chandra, C. H; Ananda, H (Oxford University Press on behalf of the Royal Astronomical Society, 2016-06)
    Low-frequency observations at 325 and 610 MHz have been carried out for two ‘radio-loud’ Seyfert galaxies, NGC 4235 and NGC 4594 (Sombrero galaxy), using the Giant Meterwave Radio Telescope (GMRT). The 610 MHz total ...
  • GOLF: A New Proxy for Solar Magnetism 
    Mathur, S; Jimenez-Reyes, S. J; Garcia, R. A (GOLF: A New Proxy for Solar Magnetism, 2009)
    Solar magnetism is measured with different indices: for instance the Magnetic Plage Solar Index (MPSI) and the Mount Wilson Sunspot Index (MWSI), number of sunspots, radio flux at 10.7 cm, Ca II K, Mg II K, EUV, He I or ...
  • GONG instrument and science 
    Harvey, J; The GONG Team (Astronomical Society of India, 1998-09)
    The Global Oscillation Network Group (GONG) is an international project to study the solar interior using helioseismology. The major goal is to accurately measure those modes of solar acoustic oscillations that have global ...
  • GONG p-mode frequency changes with solar activity 
    Bhatnagar, A; Jain, K; Tripathy, S. C (Astronomical Society of India, 2000)
    In this paper, we present a correlation study of nine solar activity indices with p-mode frequency shifts obtained from the GONG data. It is found that the two are closely correlated and a linear relationship exits. Further, ...
  • GONG site evaluation program at Udaipur Solar Observatory 
    Ambastha, A; Bhatnagar, A; Jain, R; Srivastava, N; Gupta, S; Sharma, R; Agrawal, G (Astronomical Society of India, 1991)
    The Global Oscillations Network Group (GONG) project to study the internal structure and dynamic of the sun is discussed. The GONG project will measure waves that penetrate throughout the sun's core. Power spectra of the ...
  • GPS measurements from the Ladakh Himalaya, India: Preliminary tests of plate-like or continuous deformation in Tibet 
    Jade, S; Bhatt, B. C; Yang, Z; Bendick, R; Gaur, V. K; Molnar, P; Anand, M. B; Kumar, D (Geological Society of America, 2004-11)
    Observations of relative motion in a geodetic network in Ladakh, India, and across southern Tibet indicate slow shear on the Karakorum fault, rapid east-west extension across the whole of southern Tibet, and constant ...
  • GPS-derived deformation rates in northwestern Himalaya and Ladakh 
    Jade, S; Raghavendra Rao, H. J; Vijayan, M. S. M; Gaur, V. K; Bhatt, B. C; Kumar, K; Jaganathan, S; Ananda, M. B; Dileep Kumar, P (Springer, 2011-09)
    Deformation rates derived from GPS measurements made at two continuously operating stations at Leh (34.1°N, 77.6°E) and Hanle (32.7°N, 78.9°E), and eight campaign sites in the trans-Himalayan Ladakh spanning 11 years ...
  • Grain Alignment in the Circumstellar Shell of IRC+10° 216 
    Andersson, B. -G; Lopez-Rodriguez, Enrique; Medan, Ilija; Archana Soam; Hoang, Thiem; Vaillancourt, John E; Lazarian, Alex; Sandin, Christer; Mattsson, Lars; Tahani, Mehrnoosh (American Astronomical Society, 2022-06-01)
    Dust-induced polarization in the interstellar medium (ISM) is due to asymmetric grains aligned with an external reference direction, usually the magnetic field. For both the leading alignment theories, the alignment of the ...
  • Gravimagnetic field, torsion, and gravitational shielding 
    de Sabbata, V; Sivaram, C (Springer, 1991-08)
    Many arguments are given in support of the existence of a gravimagnetic field in nature. Its connection with torsion is elaborated. Some consequences of the existence of such a field for effects of gravitational shielding ...
  • Gravitating systems with torsion self-interaction 
    Sivaram, C; de Andrade, L. C. G (Kluwer Academic Publishers, 1993-02)
  • Gravitational collapse of inhomogeneous dust: Naked singularities, black hole formation and Hawking evaporation 
    Unnikrishnan, C. S (Astronomical Society of India, 1993)
    There are several examples of existence of naked singularities in models of spherically symmetric gravitational collapse and they are considered to be counter-examples to the Cosmic Censorship (CCC). In fact, there were ...
  • Gravitational instability of interstellar magnetic clouds 
    Ghosh, K. K; Bhattacharyya, J. C (D. Reidel Publishing Co.,, 1985-12)
    The gravitational instability of a nonrotating isothermal gaseous disk permeated by a uniform frozen-in magnetic field is investigated using a fourth-order perturbation technique. From the results it is found that the disk ...
  • Gravitational Interactions Between Galaxies 
    Alladin, S. M (Astronomical Society of India, 1975-03)

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