Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21733404m&link_type=abstract
American Astronomical Society, AAS Meeting #217, #334.04; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
The Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) is a survey telescope that will image 30,000 square degrees in the optical and near infrared (the grizy filters). Because of its huge area and red filters, Pan-STARRS will be able to identify quasar candidates out to z = 7.5. Because of their intense luminosity, quasars are unique probes of the high redshift universe. Previous high redshift quasar searches have found metal spectral lines, probed the black hole-galaxy mass ratio and measured neutral hydrogen fractions at z > 6. Measuring neutral hydrogen fractions is particularly interesting, because it tells us when reionization occurred and constrains galaxy evolution and star formation models. We have identified 300 high z quasar candidates and will soon be making followup observations at the Calar Alto 3.5 meter telescope and the ESO 2.2 meter telescope.
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