HST And VLA Polarimetry Of 3C 264 And 3C 66B

Details HST And VLA Polarimetry Of 3C 264 And 3C 66B HST And VLA Polarimetry Of 3C 264 And 3C 66B

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006head....9.0746p&link_type=abstract

American Astronomical Society, HEAD meeting #9, #7.46; Bulletin of the American Astronomical Society, Vol. 38, p.357

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We present new VLA A- and B-array radio polarimetry at 22.5 GHz, and images at 8.4GHz of 3C 264, a low luminosity FR I in Abell 1367. We also present high resolution VLA A-array polarimetry of the jet of 3C 66B, both at 22.5 GHz and 43 GHz. This is the latest addition to an ongoing study of these objects, which includes optical polarimetry in several bands and multiband imaging with HST, and X-ray observations with Chandra. We find further evidence for the hypothesis that 3C 264 falls into the category of low luminosity BL Lac objects (Rector, Stocke & Perlman, 1999) in significant variability of the polarization position angle in the core of this object in only 4 years (Lara et al, 2003). This variability, together with our measured value of its optical spectral index of alpha = 0.77, and a previously derived viewing angle of < 50 degrees (Baum et al, 1997; Lara et al, 2003), puts a fairly strong constraint on the classification of 3C 264 as a low luminosity BL Lac. We also present matched resolution HST and VLA data for both of these objects, allowing for direct morphological comparisons to be made, as well as full resolution radio to optical spectral index maps.

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