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Browsing IIAP Publications by Subject "Seyfert Galaxies"

Browsing IIAP Publications by Subject "Seyfert Galaxies"

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  • 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 ...
  • Jet in seyfert galaxies 
    Shastri, P; Lal, D. V; Gabuzda, D. C (Astronomical Society of the Pacific, 2003)
    We will present the main results from a study of the pc-scale radio structure of our matched sample of Seyfert galaxies, specifically selected to test the Unified Scheme. We chose purportedly face-on (Seyfert 1) and edge-on ...
  • Low frequency radio emission from seyfert galaxies 
    Singh, V; Shastri, P; Athreya, R (Astronomical Society of the Pacific, 2009-09)
    Seyfert galaxies are low-luminosity, radio-quiet, nearby active galaxies. The high-frequency radio observations of several Seyfert galaxies show jet-like features, which tend to be confined within the host galaxy, whereas ...
  • Nucleus of NGC 2903 
    Prabhu, T. P (D.Reidel Publishing Co.,, 1980-04)
    The nucleus of NGC 2903 is identified on near infrared photographs. The energy distribution of this nucleus in the visual region of the spectrum is estimated from available observations. The continuum compares well with ...
  • Parsec-scale radio morphology in Seyfert galaxies 
    Lal, D. V; Shastri, P; Gabuzda, D. C (The Astronomical Society of the Pacific, 2001)
  • Seyfert Galaxies on milliarcsecond scales 
    Lal, D. V; Shastri, P; Gabuzda, D. C (Taylor and Francis, 2001-08)
    We present our results from global VLBI observations of a sample of Seyfert galaxies at 5 GHz. Our goal was to test predictions of the Unified Scheme for Seyfert galaxies, in which observed differences between Seyferts of ...
  • Seyferts and their radio morphology 
    Shastri, P (Taylor and Francis, 2001-08)
    In this short review, current knowledge of the radio structure of Seyfert Galaxies is briefly outlined and its application in addressing 3 key debates, viz., the validity of the Unified Scheme, the validity of the starburst ...
  • Steps toward determination of the size and structure of the broad-line region in active galactic nuclei. 6: Variability of NGC 3783 from ground-based data 
    Stirpe, G. M; Winge, C; Altieri, B; Alloin, D; Aguero, E. L; Anupama, G. C; Ashley, R; Bertram, R; Calderon, J. H; Catchpole, R. M; Corradi, R. L. M; Covino, E; Dottori, H. A; Feast, M. W; Ghosh, K. K; Hutton, R. Gil; Glass, I. S; Grebel, E. K; Jorda, L; Koen, C; Laney, C. D; Maia, M; Marang, F; Mayya, Y. D; Morrell, N; Nakada, Y; Pastoriza, M. G; Pati, A. K; Pelat, D; Peterson, B. M; Prabhu, T. P; Roberts, G; Sagar, R; Salamanca, I; Sekiguchi, K; Storchi-Bergmann, T; Subramaniam, A; Van Winckel, H; Van Wyk, F; Villada, M; Wagner, R. M; Whitelock, P. A; Winkler, H; Clavel, J; Dietrich, M; Kollatschny, W; O'Brien, P. T; Perola, G. C; Recondo-Gonzalez, M. C; Rodriguez-Pascual, P; Santos-Lleo, M (The American Astronomical Society, 1994-04)
    The Seyfert 1 galaxy NGC 3783 was intensely monitored in several bands between 1991 December and 1992 August. This paper presents the results from the ground-based observations in the optical and near-IR bands, which ...
  • X Ray Studies of Active Galactic Nuclei 
    Soundararajaperumal, S (Indian Institute of Astrophysics, Bangalore, 1999)

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