Details

Autor(en) / Beteiligte

• P.–A. Duc
• Hall, P. B.
• Fadda, D.
• Chanial, P.
• Elbaz, D.
• Monaco, P.
• Pompei, E.
• Poggianti, B. M.
• Flores, H.
• Franceschini, A.
• Biviano, A.
• Moorwood, A.
• Cesarsky, C.

Titel

An unusual iron Lo-BAL quasar detected by ISOCAM

Ist Teil von

• Astronomy and astrophysics (Berlin), 2002-07, Vol.389 (2), p.L47-L50

Ort / Verlag

EDP Sciences

Erscheinungsjahr

2002

Quelle

Electronic Journals Library

Beschreibungen/Notizen

• 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.