IIA Institutional Repository

Browsing IIAP Publications by Title

Browsing IIAP Publications by Title

Sort by: Order: Results:

  • Gas infalling motions in the envelopes of very low luminosity objects 
    Kim, Mi-Ryang; Lee, Chang Won; Maheswar, G; Myers, Philip C; Kim, Gwanjeong (IOP Publishing, 2021-04-01)
    We present the results of a single-dish survey toward 95 very low luminosity objects (VeLLOs) in optically thick (HCN 1−0) and thin (N2H+ 1−0) lines performed for the purpose of understanding the physical processes ...
  • Gaseous outflows in seyferts and unification 
    Shastri, P; Hutchings, J; Murthy, J; Wills, B. J (Astronomical Society of the Pacific, 2006-06)
    We present our results from FUSE observations of Seyfert galaxies of type 2 (Sy 2). We attempt to contrast the properties of the emission lines and absorbing outflows in Sy 1s and 2s in the framework of Unification. We ...
  • Gaseous outflows in Seyferts and unification: The case of Mrk 533 
    Shastri, P; Murthy, J; Hutchings, J; Wills, B. J (Cambridge University Press, 2004-11)
    We present our recent results from the observation of the O VI λ λ1032,1038 emission doublet in Seyfert galaxies of type 2 with the FUV spectrograph on the FUSE satellite. These observations are part of our investigation ...
  • GASP XVIII: star formation quenching due to AGN feedback in the central region of a jellyfish galaxy 
    George, K; Poggianti, B. M; Bellhouse, C; Radovich, M; Fritz, J; Paladino, R; Bettoni, R D; Jaff, Y; Moretti, A; Gullieuszik, M; Vulcani, B; Fasano, G; Stalin, C. S; Subramaniam, A; Tandon, S. N (Oxford University Press on behalf of the Royal Astronomical Society, 2019-08)
    We report evidence for star formation quenching in the central 8.6 kpc region of the jellyfish galaxy JO201 that hosts an active galactic nucleus (AGN), while undergoing strong ram-pressure stripping. The ultraviolet imaging ...
  • GASP XXIII: A Jelly fi sh Galaxy as an Astrophysical Laboratory of the Baryonic Cycle 
    Poggianti, Bianca M.; Ignesti, Alessandro; Gitti, Myriam Gitti; Wolter, Anna; Brighenti, abrizio; Biviano, Andrea; George, K; Vulcani, enedetta; Gullieuszik, Marco; Moretti, Alessia; Paladino, Rosita; Bettoni, Daniela; Franchetto, Andrea; Jaffe, Yara L.; Radovich, Mario; Roediger, Elke; Tomicic, Neven; Tonnesen, Stephanie (IOP Publishing, 2019-12)
    With MUSE, Chandra , VLA, ALMA, and UVIT data from the GAS P program, we study the multiphase baryonic components in a jelly fi sh galaxy ( JW100 ) with a stellar mass 3.2 × 10 11 M e hosting an active ...
  • GASP. XV. A MUSE view of extreme ram-pressure stripping along the line of sight: physical properties of the jellyfish galaxy JO201 
    Bellhouse, C; Jaffe, Y. L; McGee, S. L; Poggianti, B. M; Smith, R; Tonnesen, S; Fritz, J; Hau, G. K .T; Gullieuszik, M; Vulcani, B; Fasano, G G; Moretti, A; George, K; Bettoni, D; nofrio, O, M.D; Omizzolo, A; Sheen, Y.K (Oxford University Press on behalf of the Royal Astronomical Society, 2019-05)
    We present a study of the physical properties of JO201, a unique disc galaxy with extended tails undergoing extreme ram-pressure stripping (RPS) as it moves through the massive cluster Abell 85 at supersonic speeds mostly ...
  • Gauribidanur low-frequency solar spectrograph 
    Kishore, P; Kathiravan, C; Ramesh, R; Rajalingam, M; Barve, Indrajit V (Springer, 2014-10)
    A new radio spectrograph, dedicated to observe the Sun, has been recently commissioned by the Indian Institute of Astrophysics (IIA) at the Gauribidanur Radio Observatory, about 100 km North of Bangalore. The instrument, ...
  • Gauribidanur radio array solar spectrograph (GRASS) 
    Ebenezer, E; Subramanian, K. R; Ramesh, R; Sundararajan, M. S; Kathiravan, C (Astronomical Society of India, 2007-06)
    We describe the Gauribidanur radio array solar spectrograph (GRASS) and its various systems. The system consists of an array of 8 log periodic dipoles,a spectrum analyzer and a data acquisition system. The spectrograph ...
  • The Gauribidanur radio observatory 
    Sastry, Ch. V (National Institute of Science Communication and Information Resources, 1989-08)
    The Raman Research Institute and the Indian Institute of Astrophysics in a joint collaboration program operate the Gauribidanur radio observatory. Details of the various antenna arrays and receiver systems available at the ...
  • The Gauribidanur Radioheliograph 
    Ramesh, R; Subramanian, K. R; Sundararajan, M. S; Sastry, Ch. V (Kluwer Academic Publishers, 1998-08)
    A new radio heliograph for obtaining two-dimensional images of the solar corona sequentially at many frequencies in the range 40-150 MHz has been built by the Indian Institute of Astrophysics at the Gauribidanur Radio ...
  • The Gauribidnur acousto optic spectrometer 
    Subramanian, K. R; Ebenezer, E; Sastry, Ch. V (Tata McGraw- Hill, 1994-07)
    An acousto optic spectrometer (ADS) with 30 MHz bandwidth and 1760 channels used for obtain-_ ing the dynamic spectra of solar radio bursts at Gauribidanur is described.
  • Gender diversity in physics in India: Interventions so far and recommendations for the future 
    Shastri, P; Ramaswamy, R; Narasimhan, S; Rao, S; Ubale, S; Kulkarni, S (American Institute of Physics, 2013-03)
    Several governmental policy initiatives have already taken shape in India during the last few years to address the gender imbalance in the sciences. These initiatives and the barriers to gender inequity that persist in ...
  • Gender status in the Indian physics profession and the way forward 
    Lekshmi, R; Shastri, P; Srubabati Goswami; Pragya, P; Vandana, N; Kharb, P; Sinha, U; Saha-Dasgupta, T; Suratna, Das; Chatterjee, Suchetana (AIP Publishing, 2019-06-21)
    The gender disparity in the Indian physics profession is stark, even compared to other scientific disciplines, reflecting the global trend. While the drivers of the disparity are clearly multiple and complex, we present ...
  • General Properties of Giant Radio Galaxies 
    Klein, U; Mack, K. H; Saripalli, L (International Astronomical Union, 1996)
  • A General Relativistic Calculation of Boundary Layer and Disc Luminosity for Accreting Non-magnetic Neutron Stars in Rapid Rotation 
    Thampan, A. V; Datta, B (The Royal Astronomical Society, 1998-06)
    We calculate the disc and boundary layer luminosities for accreting rapidly rotating neutron stars with low magnetic fields in a fully general relativistic manner. Rotation increases the disc luminosity and decreases the ...
  • General relativistic decollimation of a jet 
    Kapoor, R. C (Gordon and Breach Science Publishers, 1986)
    The effect of defocusing introduced by spacetime curvature in a narrow conical beam of particles emanating from the vicinity of a compact mass is considered, with application to the study of jets. The deflection in particle ...
  • General Relativistic Effects on the Induced Electric Field Exterior to Pulsars 
    Sengupta, S (The American Astronomical Society, 1995-08)
    The importance of general relativity to the induced electric field exterior to pulsars has been investigated by assuming aligned vacuum and nonvacuum magnetosphere models. For this purpose, the stationary and axisymmetric ...
  • General Relativistic Effects on the Ohmic Decay of Crustal Magnetic Fields in Neutron Stars 
    Sengupta, S (The American Astronomical Society, 1997-04)
    The ohmic decay of magnetic fields confined within the crust of neutron stars is considered by incorporating the effect of spacetime curvature produced by the intense gravitational field of the star. It is shown that the ...
  • General relativistic effects on the pulse profile of fast pulsars 
    Datta, B; Kapoor, R. C (Nature Publishing Group, 1985-06-13)
    The recent discovery of millisecond pulsars has led to several theories about the structure and radiation characteristics of rapidly rotating neutron stars. The rapid rotation rate implies that such pulsars will be compact ...
  • General relativistic spectra of accretion discs around rapidly rotating neutron stars: effect of light bending 
    Bhattacharyya, S; Bhattacharya, D; Thampan, A. V (Royal Astronomical Society, 2001-08)
    We present computed spectra, as seen by a distant observer, from the accretion disc around a rapidly rotating neutron star. Our calculations are carried out in a fully general relativistic framework, with an exact treatment ...

Search DSpace


Browse

My Account