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Magnetic fields in Quasar 3C147 on milliarcsecond scales

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Abstract

VLBA polarimetric observations of the steep-spectrum quasar 3C147 were made at four frequencies in the available 5 GHz band, from which polarization in one bright feature in the inner jet was detected. The rotation measure of this feature (∼ 1300 rad m-2) agrees with the known high rotation measure of the source, which makes it possible to remove the Faraday screen pixel-by-pixel and obtain the intrinsic magnetic field structure. The arch shape of B vectors suggests that a relativistic and distorted jet is being seen in projection.

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References

  • Alef, W., Preuss, E., Kellermann, K.L., Whyborn, N. and Wilkinson, P.N.: 1988, Structural Variability in the Core of 3C147, in: Reid, M.J. and Moran, J.M. (eds.), IAU Symp. 129, The Impact of VLBI in Astrophysics and Geophysics, Kluwer, Dordrecht, pp. 95–96.

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  • Nan, R.D., Zhang, H.Y., Gabuzda, D.C., Ping, J.S., Schillizzi, R.T., Tian, W.W. and Inoue M.: 2000, High RotationMeasure in the Steep Spectrum Quasar 3C147. Astron. Astrophys., accepted, 2000.

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Authors and Affiliations

  1. Beijing Astronomical Observatory, National Astronomical Observatories, Chinese Academy of Sciences, A20 Datun Road, Chaoyang District, Beijing, 100012, P.R. China

    H.Y. Zhang

  2. Astronomy Department, Beijing Normal University, Beijing, 100875, P.R. China

    H.Y. Zhang & R.D. Nan

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  1. H.Y. Zhang
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  2. R.D. Nan
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Zhang, H., Nan, R. Magnetic fields in Quasar 3C147 on milliarcsecond scales. Astrophysics and Space Science 278, 143–146 (2001). https://doi.org/10.1023/A:1013186107765

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  • DOI: https://doi.org/10.1023/A:1013186107765

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