The SCUBA Bright Quasar Survey II: unveiling the quasar epoch at submillimetre wavelengths

Robert S. Priddey , Kate G. Isaak , Richard G. Mcmahon , Alain Omont (1)

1 IAP - Institut d'Astrophysique de Paris

We present results of the first systematic search for submillimetre continuum emission from z=2, radio-quiet, optically-luminous quasars, using the SCUBA/JCMT. We have observed a homogeneous sample of 57 quasars in the redshift range 1.54) redshift. The target sensitivity of the survey (3sigma=10mJy at 850um) was chosen to enable efficient identification of bright submm sources, suitable for detailed follow-up. 9 targets are detected, with fluxes in the range 7-17mJy. Although there is a suggestion of variation of submm detectability between z=2 and z=4, this is consistent with the K-correction of a characteristic far-infrared spectrum. Additionally, the weighted mean fluxes of non-detections at z=2 and z>4 are comparable.

Domaines: Cosmologie et astrophysique extra-galactique [astro-ph.CO]

Robert S. Priddey, Kate G. Isaak, Richard G. Mcmahon, Alain Omont. The SCUBA Bright Quasar Survey II: unveiling the quasar epoch at submillimetre wavelengths. Monthly Notices of the Royal Astronomical Society, 2003, 339 (4), pp.1183. ⟨10.1046/j.1365-8711.2003.06279.x⟩. ⟨hal-00005493⟩