Submillimetre Observations of z>6 Quasars

(2) Imperial College London; 3); (3) University of Hertfordshire; (4) University of Wales; (5) IoA; Cambridge); Cardiff; Edinburgh; Hatfield; Ian Robson (1)

arxiv: astro-ph/0405177 · v1 · submitted 2004-05-10 · 🌌 astro-ph

Submillimetre Observations of z>6 Quasars

Ian Robson (1) , Robert Priddey (2 , 3) , Kate Isaak (4) , Richard McMahon (5) ((1) UK ATC , Edinburgh , (2) Imperial College London , (3) University of Hertfordshire

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Hatfield (4) University of Wales Cardiff (5) IoA Cambridge)

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keywords quasarsdetecteddustobservationsredshiftsubmillimetreallowcamera

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We report on submillimetre observations of three high redshift (z>6) quasars, made using the SCUBA camera on the JCMT. Only one of the sample was detected at 850um-- SDSS J1148+5251 (z=6.43). It was also detected (>3 sigma significance) at 450um, one of the few z>4 quasars for which this is the case. In combination with existing millimetric data, the submm detections allow us to place limits on the temperature of the submm-emitting dust, hence on the mass of dust to be synthesized under the time constraint imposed by the quasar's redshift.

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Submillimetre Observations of z>6 Quasars

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