The Color Selection of Quasars from Redshifts 5 to 10: Cloning and Discovery

Details The Color Selection of Quasars from Redshifts 5 to 10: Cloning and Discovery The Color Selection of Quasars from Redshifts 5 to 10: Cloning and Discovery

2005-03-31

arxiv.org/abs/astro-ph/0504001v1

Astron.J.130:13-22,2005

Astronomy and Astrophysics

Astrophysics

14 pages, 11 Postscript figures, uses emulateapj.sty The Astronomical Journal, accepted, in press

Scientific paper

10.1086/430525

We present simulations of quasar colors, magnitudes, and numbers at redshifts 56 epoch taking advantage of the new UKIDSS near-infrared filter set, and we examine the redshift intervals of maximum productivity, discussing color selection and survey depth issues. On the basis of the SDSS sample, we find that the surface density of z>4.7 quasars increases by a factor of 3X by extending 0.7 i-magnitudes deeper than the SDSS spectroscopic survey limit of i=20.2 -- correspondingly we predict a total of ~400 faint quasars in the SDSS main area that have redshift z>4.7 and magnitudes $<20.9.

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