A QSO with precessing jets - 2300-189

Details A QSO with precessing jets - 2300-189 A QSO with precessing jets - 2300-189

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mnras.207...55h&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 207, March 1, 1984, p. 55-71. Research supported by the

Astronomy and Astrophysics

Astronomy

26

Astronomical Spectroscopy, Plasma Jets, Quasars, Radio Sources (Astronomy), Astronomical Photography, Elliptical Galaxies, Visible Spectrum

Scientific paper

The QSO 2300-189 (z = 0.1287) is found to have a faint companion galaxy at the same redshift. The separation is 6.8 arcsec on the sky. A spectrum of the fuzz around the QSO shows absorption features typical of late-type stars, which argues for its occurrence in a normal disc or E galaxy. Radio maps obtained with the VLA at 1465 MHz and 4885 MHz show inversion (or S-shaped) symmetry, which the authors explain as due to the ejection of jets along an axis which is precessing, probably due to the tidal influence of the nearby galaxy. Several kinematic parameters are deduced including an upper limit for the jet velocity. Further support for tidal interaction comes from the detection of an extensive region of low-brightness optical emission in the vicinity of the QSO.

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