Browsing by Author "Duc, PA"

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    An unusual iron Lo-BAL quasar detected by ISOCAM
    (2002) Duc, PA; Hall, PB; Fadda, D; Chanial, P; Elbaz, D; Monaco, P; Pompei, E; Poggianti, BM; Flores, H; Franceschini, A; Biviano, A; Moorwood, A; Cesarsky, C
    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 Fe II. 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.