The Radio Jet of 3C273

  • R. G. Conway
Part of the International Astronomical Union / Union Astronomique Internationale book series (IAUS, volume 97)


Most radio sources are two-sided, like Cygnus A. A minority, however, are one-sided, and the first-known and brightest example is 3C273 (see Fig. 1), a high-luminosity QSO, showing ‘super-luminal’ proper motions in the core. The explanation of such one-sided sources may follow one of two lines (and it seems that both schools of thought are represented at the present meeting): on the one hand, the ejection of material from the central object may truly be one-sided, while on the other hand the ejection may be two-sided but at a relativistic speed, so that the receding half is hidden by Doppler beaming.

Copyright information

© IAU 1982

Authors and Affiliations

  • R. G. Conway
    • 1
  1. 1.Nuffield Radio Astronomy Laboratories, Jodrell BankUniversity of ManchesterUK

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