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Model-independent evidence in favor of an end to reionization by z~6
Ian McGreer, Andrei Mesinger, Valentina D'Odorico
We present new upper limits on the volume-weighted neutral hydrogen fraction, <xHI>, at z~5-6 derived from spectroscopy of bright quasars. The fraction of the Lyman-alpha and Lyman…
The Sloan Digital Sky Survey Reverberation Mapping Project: Technical Overview
Yue Shen, W. N. Brandt, Kyle S. Dawson +36
The Sloan Digital Sky Survey Reverberation Mapping project (SDSS-RM) is a dedicated multi-object RM experiment that has spectroscopically monitored a sample of 849 broad-line quasa…
A Glimpse at Quasar Host Galaxy Far-UV Emission, Using DLAs as Natural Coronagraphs
Zheng Cai, Xiaohui Fan, Pasquier Noterdaeme +12
In merger-driven models of massive galaxy evolution, the luminous quasar phase is expected to be accompanied by vigorous star formation in quasar host galaxies. In this paper, we u…
The Sloan Digital Sky Survey Stripe 82 Imaging Data: Depth-Optimized Co-adds Over 300 Deg^2 in Five Filters
Linhua Jiang, Xiaohui Fan, Fuyan Bian +9
We present and release co-added images of the Sloan Digital Sky Survey (SDSS) Stripe 82. Stripe 82 covers an area of 300 deg^2 on the Celestial Equator, and has been repeatedly sca…
Discovery of eight z ~ 6 quasars from Pan-STARRS1
E. Bañados, B. P. Venemans, E. Morganson +24
High-redshift quasars are currently the only probes of the growth of supermassive black holes and potential tracers of structure evolution at early cosmic time. Here we present our…
Close companions to two high-redshift quasars
Ian D. McGreer, Xiaohui Fan, Michael A. Strauss +5
We report the serendipitous discoveries of companion galaxies to two high-redshift quasars. SDSS J025617.7+001904 is a z=4.79 quasar included in our recent survey of faint quasars…