3C 216 - A new type of superluminal quasar

Details 3C 216 - A new type of superluminal quasar 3C 216 - A new type of superluminal quasar

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...329l..51b&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 329, June 15, 1988, p. L51-L55. NSF-supported research.

Astronomy and Astrophysics

Astronomy

42

Extragalactic Radio Sources, Interstellar Matter, Quasars, Sky Surveys (Astronomy), Very Large Array (Vla), Very Long Base Interferometry, Blazars, Blue Stars, Morphology, Radio Spectra, Red Shift

Scientific paper

VLBI maps of the core in the compact, steep-spectrum radio source 3C 216, associated with the quasar 0906 + 430, are presented. The data indicate an apparent superluminal core expansion speed of (4.7 + or - 0.9)/h c (H(0) = 100h km/s Mpc and q(o) = 0.5). A high dynamic range VLA map of 3C 216 at 1.4 GHz is also presented which reveals the presence of a low surface brightness halo about 8 arcsec in extent. 3C 216 has some of the features of both a relativistically beamed blazar and a steep-spectrum compact radio source interacting with an interstellar medium, and therefore cannot easily be understood in the context of current models for extragalactic radio sources.

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