The core of J2310-4347

Details The core of J2310-4347 The core of J2310-4347

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007atnf.prop.1157b&link_type=abstract

ATNF proposal V257, Semester: October, 2007

Physics

Extragalactic, Lba

Scientific paper

J2310-437 is an active galaxy with extreme properties. It hosts a bright X-ray and radio core, with a one-sided radio jet and two-sided extended radio structure. However, despite intense optical imaging, no indication of a bright optical core has been detected - the galaxy shows no central blue continuum, nor any obvious central optical dust to hide the nucleus, nor any detectable emission lines. We interpret this as implying that J2310-437 is an unusually optically-quiet BL Lac object, perhaps the optically quietest yet detected, but it is also possible that the core has recently ceased strong activity, and the radio and X-ray outputs are historical records of activity and originate from the base of a jet emerging from the core. We wish to use the LBA to test this possibility by making a high-resolution C-band image of the core to see its central structure.

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