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Browsing by Author "Saikia, D. J"

Browsing by Author "Saikia, D. J"

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  • Saikia, D. J (Astronomical Society of India, 2005-03)
  • Nandi, S; Saikia, D. J; Roy, R; Dabhade, P.; Wadadekar, Y; Larsson, J; Baes, M; Chandola, H. C; Singh, M (Oxford University Press on behalf of the Royal Astronomical Society, 2019-07)
    n order to understand the possible mechanisms of recurrent jet activity in radio galaxies and quasars, which are still unclear, we have identified such sources with a large range of linear sizes (220–917 kpc), and hence ...
  • Nandi, S; Pirya, A; Pal, S; Konar, C; Saikia, D. J; Singh, M (Wiley-Blackwell, 2010-05)
    We present low-frequency observations starting from ∼150 MHz with the Giant Metrewave Radio Telescope, and high-frequency observations with the Very Large Array of two large radio galaxies 3C46 and 3C452. These observations ...
  • Saikia, D. J; Salter, C. J; Banhatti, D. G; Ghosh, T; Gothoskar, P; Manoharan, P. K (Astronomical Society of India, 1991)
  • Saikia, D. J; Gupta, N (Astronomical Society of India, 2003)
    We show that the compact steep spectrum sources are more asymmetric in the polarization of the outer lobes compared with the more extended ones. This could be due to interaction of the jets with infalling material, which ...
  • Saikia, D. J; Subrahmanya, C. R; Patnaik, A. R; Unger, S. W; Cornwell, T. J; Graham, D. A; Prabhu, T. P (Royal Astronomical Society, 1986-04)
    The authors present VLA observations of the S0 galaxy NGC 1218 at λ20 and 6 cm with both the A and D arrays, at λ20 cm with the B array and at λ2 and 1.3 cm with the A array. They also present VLBI observations at λ6 cm ...
  • Hota, A; Saikia, D. J (Astronomical Society of India, 2003)
    We present GMRT and VLA observations of the superwind galaxy, NGC1482, which has been discovered to have a remarkable hour-glass shaped optical emission line outflow on both sides of the galactic disk. The central region ...
  • Wiita, P. J; Kapahi, V. K; Saikia, D. J (Astronomical Society of India, 1982-12)
    We review recent analyses of observations of radio galaxies and quasars that support the relativistic beaming models and appear to produce values for the Lorentz factors of the radiating mateiral in the nuclear jets. Thick ...
  • Konar, C; Saikia, D. J; Ishwara-Chandra, C. H; Kulkarni, V. K (Astronomical Society of India, 2003)
    Multi-frequency radio observations have been made of a sample of 17 giant radio galaxies, many of whose structures were not well determined earlier. These sources were observed with the VLA D- and B/C arrays at C and L ...

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