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Recent activity in 3C 273

  • IV. Multifrequency Observations
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Book cover BL Lac Objects

Part of the book series: Lecture Notes in Physics ((LNP,volume 334))

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Abstract

Rapid and bright flaring activity was observed in the emission of 3C 2733 in early 1988. The behaviour of the source during the flare was reminiscent of the behaviour of classical Blazars, with rapid flux variations (several mJy night to night changes) and a high and variable polarization. Spectral slope changes are naturally explained in terms of synchrotron radiation and lead to a direct determination of the magnetic field in the flare emitting region. The value of the magnetic field is found to be ≈0.7G. Very rapid changes in the mm flux probably imply that the flare emitting plasma is moving at relativistic speeds towards us.

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References

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Author information

Authors and Affiliations

  1. Observatoire de Genève, CH-1290, SAUVERNY, Switzerland

    Thierry J. -L. Courvoisier

  2. School of Physics and Astronomy Lancashire Polytechnic, GB-PRESTON, PR1 2TQ, UK

    E. Ian Robson

Authors
  1. Thierry J. -L. Courvoisier
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  2. E. Ian Robson
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Editor information

L. Maraschi T. Maccacaro M. -H. Ulrich

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© 1989 Springer-Verlag

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Courvoisier, T.J.L., Robson, E.I. (1989). Recent activity in 3C 273. In: Maraschi, L., Maccacaro, T., Ulrich, M.H. (eds) BL Lac Objects. Lecture Notes in Physics, vol 334. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0031163

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  • DOI: https://doi.org/10.1007/BFb0031163

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-51389-6

  • Online ISBN: 978-3-540-46203-3

  • eBook Packages: Springer Book Archive

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