An unusual iron Lo-BAL quasar detected by ISOCAM
  We report the discovery of an unusual low--ionization broad absorption line quasar at z=1.776 which exhibits absorption lines from many excited states of Feii. This member of the rare class of 'FeLoBAL' quasars was serendipitously found in a mid-infrared (MIR) survey of distant clusters carried out with the ISOCAM camera. ISO J005645.1-273816 has a high MIR to UV luminosity ratio, suggesting a strong dust obscuration plus emission from very hot dust. This characteristic makes MIR surveys particularly efficient at detecting LoBAL quasars. 
P.-A. Duc, P. B. Hall, D. Fadda, P. Chanial, D. Elbaz, P. Monaco, E.   Pompei, B.M. Poggianti, H. Flores, A. Franceschini, A...