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Placing High-Redshift Quasars in Perspective: a Catalog of Spectroscopic Properties from the Gemini Near Infrared Spectrograph -- Distant Quasar Survey
Brandon M. Matthews, Ohad Shemmer, Cooper Dix +15
We present spectroscopic measurements for 226 sources from the Gemini Near Infrared Spectrograph - Distant Quasar Survey (GNIRS-DQS). Being the largest uniform, homogeneous survey…
ALMA Observations of Quasar Host Galaxies at
Nathen H. Nguyen, Paulina Lira, Benny Trakhtenbrot +4
We present ALMA band-7 data of the [CII] emission line and underlying far-infrared (FIR) continuum for twelve luminous quasars at , powered…
Prescriptions for Correcting Ultraviolet-Based Redshifts for Luminous Quasars at High Redshift
Cooper Dix, Ohad Shemmer, Michael S. Brotherton +3
High-redshift quasars typically have their redshift determined from rest-frame ultraviolet (UV) emission lines. However, these lines, and more specifically the prominent C IV $λ154…
An Extreme X-ray Variability Event of a Weak-Line Quasar
Qingling Ni, W. N. Brandt, W. Yi +8
We report the discovery of an extreme X-ray flux rise (by a factor of > 20) of the weak-line quasar SDSS J153913.47+395423.4 (hereafter SDSS J1539+3954) at z = 1.935. SDSS J1539+39…