Discovery of an Optical Jet in the BL Lac Object 3C 371

Details Discovery of an Optical Jet in the BL Lac Object 3C 371 Discovery of an Optical Jet in the BL Lac Object 3C 371

1997-05-22

arxiv.org/abs/astro-ph/9705179v1

Astronomy and Astrophysics

Astrophysics

11 pages, LaTeX, 4 figures (1 eps, 3 gifs), accepted for publication in ApJ Letters

Scientific paper

10.1086/310790

We have detected an optical jet in the BL Lac object 3C 371 that coincides with the radio jet in this object in the central few kpc. The most notable feature is a bright optical knot 3 arcsec (4 kpc) from the nucleus that occurs at the location where the jet apparently changes its direction by ~30 degrees. The radio, near-infrared and optical observations of this knot are consistent with a single power-law spectrum with a radio-optical spectral index alpha = -0.81. One possible scenario for the observed turn is that the jet is interacting with the material in the bridge connecting 3C 371 to nearby galaxies and the pressure gradient is deflecting the jet significantly.

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