Superluminal motion in the double-lobed quasar 3C263

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1987 English Publisher:Springer Science and Business Media LLCJournal:Nature, volume 325, pages 36-38 (issn: 0028-0836, eissn: 1476-4687,

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Authors: J. A. Zensus; D. H. Hough; R. W. Porcas;

doi: 10.1038/325036a0

Superluminal motion in the double-lobed quasar 3C263

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Abstract

The detection of superluminal motion in the quasar 3C263 is reported. The milliarcsecond structure of this source consists of two nearly unresolved components whose separation is increasing at a rate of 0.06 + or - 0.02 marcsec/yr. This corresponds to an expansion speed of 2.7 + or - 0.9 c (H/0/ = 55 km/s/Mpc, q/0/ = 0.05). This quasar is the weakest superluminal source found so far, and there are indications that superluminal motion occurs frequently in this class of object.

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