Now showing items 1-2 of 2

    • The deep x-ray radio blazar survey. III. radio number counts, evolutionary properties, and luminosity function of blazars 

      Padovani, Paolo; Giommi, Paolo; Landt, Hermine; Perlman, Eric S. (2007-07-10)
      Our knowledge of the blazar surface densities and luminosity functions, which are fundamental parameters, relies still on samples at relatively high flux limits. As a result, our understanding of this rare class of active ...
    • A flare in the jet of pictor A 

      Marshall, Herman L.; Hardcastle, Martin J.; Birkinshaw, Mark; Croston, Judith H.; Evans, Daniel A.; Landt, Hermine; Lenc, Emil; Massaro, Francesco; Perlman, Eric S.; Schwartz, Daniel A. (2010-04-13)
      A Chandra X-ray imaging observation of the jet in Pictor A showed a feature that appears to be a flare that faded between 2000 and 2002. The feature was not detected in a follow-up observation in 2009. The jet itself is ...