NOAO >   Observing Info >   Approved Programs >   2018A-0054

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Program Information for 2018A-0054


PI: Jan-Torge Schindler, U. of Arizona, jtschindler@email.arizona.edu
Address: Steward Observatory, Department of Astronomy, 933 N. Cherry Ave., Tucson, AZ 85719 United States of America

CoI: Xiaohui Fan, U. of Arizona
CoI: Ian McGreer, U. of Arizona

Title: The Southern Extremely Luminous Quasar Survey (ELQS) at z~3-5

Abstract: Statistical samples of luminous quasars are important probes for the evolution of super-massive black holes. They further facilitate research on the intergalactic medium, circum-galactic gas, fundamental constants and large-scale structure formation in the Universe through absorption line studies and incited extended Ly{$alpha$} emission. While their potential to serve as useful probes for these areas of research is directly proportional to their luminosity, extremely luminous quasars are very rare. We have developed a candidate selection based on complementary near-infrared and optical photometry with focus on high completeness. In the past year we have successfully discovered $>30$ new QSOs with $i <17.5$ at $z=2.8-4.5$ in the already well surveyed SDSS footprint. The recently published PanSTARRS photometry allows us to extend this survey to an additional $approx7300,rm{deg}^2$ in the southern hemisphere. In 2017B we are starting a survey for extremely luminous ($i<18.5$) quasars at $z=3-5$ in the southern hemisphere ($approx4300,rm{deg}^2$) with 8 nights on SOAR. We propose to continue this survey throughout 2018A in a region of $approx3000,rm{deg}^2$, that has yet to be mapped by quasar surveys. This survey will likely triple the number of known luminous quasars in that area. It will provide invaluable targets for cosmology and extragalactic astronomy, making use of the powerful telescopes of the southern hemisphere.

Program Type: Standard/Extragalactic

Scheduled Nights:
Run 1 (2018A):  SOAR/Goodman -- 6n on Apr 04 - Apr 06 2018, Jun 02 - Jun 04 2018


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2018A-0054

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