Chandra X-ray Scrutiny of New Radio-Shy BL Lac Candidates

Details Chandra X-ray Scrutiny of New Radio-Shy BL Lac Candidates Chandra X-ray Scrutiny of New Radio-Shy BL Lac Candidates

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cxo..prop.2642a&link_type=abstract

Chandra proposal ID #10700689

Physics

Scientific paper

BL Lacs are rare X-ray emitting AGN, oft-unified with FR I radio galaxies viewed along a jet. Despite decades of study it is still uncertain whether all BL Lacs are strong radio sources: venerable BL Lac samples include just dozens of objects, too few to test for an even rarer radio-quiet subset. But, recent large area surveys have found a few intriguing BL Lacs lying on the radio faint tail; SDSS alone provides hundreds of new BL Lacs, with several dozen potentially radio-shy cases. We propose brief Chandra images of 3 such BL Lac candidates having deep VLA data but lacking X-ray constraints. Chandra scrutiny is a prerequisite to claiming them as radio quiet BL Lacs; confirmation would provide fascinating challenges to our understanding of this peculiar AGN subclass.

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