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

Дата и время публикации : 2008-10-21T15:27:10Z

Авторы публикации и институты :
Daniel J. Mortlock (Imperial College London)
Mitesh Patel (Imperial College London)
Stephen J. Warren (Imperial College London)
Bram P. Venemans (University of Cambridge)
Richard G. McMahon (University of Cambridge)
Paul Hewett (University of Cambridge)
Chris Simpson (Liverpool John Moores University)
Rob G. Sharp (Anglo-Australian Observatory)

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: to appear in Proceedings of the XXth Moriond Meeting: Cosmology, J. Tran Thanh Van et al., eds.; 4 pages, 2 figures
Первичная категория: astro-ph

Все категории : astro-ph

Краткий обзор статьи: 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.

Category: Physics