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5 GHZ Evn Polarization of 3C286

  • D. Dallacasa
  • R. T. Schilizzi
  • H. S. Sanghera
  • D. R. Jiang
  • E. Lüdke
  • W. D. Cotton
Conference paper
Part of the International Astronomical Union book series (IAUS, volume 175)

Abstract

3C286 (1328+307) is a powerful radio source identified with a quasar at z=0.849. There is a foreground galaxy responsible for an H I absorption line system at z=0.6922 (Brown & Roberts 1973), centered approximately 2.″5 to the southeast of 3C286. The radio source has a steep spectrum (α= −0.61, Sν ∝ να between 1.4 and 15 GHz) which turns over at about 100 MHz. Subarcsecond resolution radio images show a misaligned triple structure, dominated by the central component (Spencer et al. 1989) which accounts for at least 95% of the total flux density at all frequencies. 3C286 is one of the strongest extragalactic sources in polarized emission (0.84 Jy at 5 GHz and 1.41 Jy at 1.4 GHz) and with a rotation measure close to 0 rad m−2 (Rudnick and Jones 1983). Hence the observed orientation of the electric field vector is essentially independent of frequency.

Keywords

Radio Source Radio Galaxy Electric Field Vector Extragalactic Radio Source Radio Astronomy Observatory 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© International Astronomical Union 1996

Authors and Affiliations

  • D. Dallacasa
    • 1
  • R. T. Schilizzi
    • 1
  • H. S. Sanghera
    • 1
  • D. R. Jiang
    • 2
  • E. Lüdke
    • 3
  • W. D. Cotton
    • 4
  1. 1.Joint Institute for VLBI in EuropeDwingelooThe Netherlands
  2. 2.Chinese Academy of SciencesShanghai ObservatoryChina
  3. 3.Universidade Federal de Santa MariaSanta MariaBrazil
  4. 4.National Radio Astronomy ObservatoryCharlottesvilleUSA

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