The UKIRT Infrared Deep Sky Survey and the search for the most distant quasars

(2) University of Cambridge; (3) Liverpool John Moores University; (4) Anglo-Australian Observatory); Bram P. Venemans (2); Chris Simpson (3); Daniel J. Mortlock (1); Mitesh Patel (1); Paul Hewett (2); Richard G. McMahon (2); Rob G. Sharp (4) ((1) Imperial College London

arxiv: 0810.3859 · v1 · submitted 2008-10-21 · 🌌 astro-ph

The UKIRT Infrared Deep Sky Survey and the search for the most distant quasars

Daniel J. Mortlock (1) , Mitesh Patel (1) , Stephen J. Warren (1) , Bram P. Venemans (2) , Richard G. McMahon (2) , Paul Hewett (2) , Chris Simpson (3) , Rob G. Sharp (4) ((1) Imperial College London

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(2) University of Cambridge (3) Liverpool John Moores University (4) Anglo-Australian Observatory)

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keywords quasarssurveyareadeepinfraredukirtulascombination

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The UKIRT Infrared Deep Sky Survey (UKIDSS) Large Area Survey (LAS) has the necessary combination of filters (Y, J, H and K), depth (Y <~ 20.2) and area coverage (~4000 deg^2) to detect several redshift z >~ 6.4 quasars. The Third Data Release (DR3) included ~1000 deg^2 of LAS observations which have so far yielded two previously known z ~= 6 quasars and two new discoveries: ULAS J0203+0012, at z = 5.72; and ULAS J1319+0950, at z = 6.13.

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The UKIRT Infrared Deep Sky Survey and the search for the most distant quasars

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