TY - JOUR
T1 - Placing high-redshift quasars in perspective
T2 - A catalog of spectroscopic properties from the gemini near infrared spectrograph-distant quasar survey
AU - Matthews, Brandon M.
AU - Shemmer, Ohad
AU - Dix, Cooper
AU - Brotherton, Michael S.
AU - Myers, Adam D.
AU - Andruchow, I.
AU - Brandt, W. N.
AU - Ferrero, Gabriel A.
AU - Gallagher, S. C.
AU - Green, Richard
AU - Lira, Paulina
AU - Plotkin, Richard M.
AU - Richards, Gordon T.
AU - Runnoe, Jessie C.
AU - Schneider, Donald P.
AU - Shen, Yue
AU - Strauss, Michael A.
AU - Wills, Beverley J.
N1 - Funding Information:
This work is supported by National Science Foundation grants AST-1815281 (B.M.M., O.S., C.D.), AST-1815645 (M.S.B., A.D.M.), AST-1516784 (W.N.B.), and AST-1715579 (Y.S.). A.D.M. was also supported, in part, by the Director, Office of Science, Office of High Energy Physics of the U.S. Department of Energy under Award No. DE-SC0019022. Y.S. acknowledges support from an Alfred P. Sloan Research Fellowship. We thank an anonymous referee for thoughtful and valuable comments that helped improve this manuscript. This research has made use of the NASA/IPAC Extragalactic Database (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. We thank Jin Wu and the Gemini Observatory staff for helpful discussions, and providing assistance with data reduction for this project. This work was enabled by observations made from the Gemini North telescope, located within the Maunakea Science Reserve and adjacent to the summit of Maunakea. We are grateful for the privilege of observing the universe from a place that is unique in both its astronomical quality and its cultural significance.
Publisher Copyright:
© 2021. The American Astronomical Society. All rights reserved.
PY - 2021/2
Y1 - 2021/2
N2 - We present spectroscopic measurements for 226 sources from the Gemini Near Infrared Spectrograph-Distant Quasar Survey (GNIRS-DQS). Being the largest uniform, homogeneous survey of its kind, it represents a fluxlimited sample (mi≤19.0 mag, H≤16.5 mag) of Sloan Digital Sky Survey (SDSS) quasars at 1.5 ≤ z ≤ 3.5 with a monochromatic luminosity (λLλ) at 5100 Å in the range of 1044-1046 erg s-1. A combination of the GNIRS and SDSS spectra covers principal quasar diagnostic features, chiefly the C IV λ1549, Mg II λλ2798, 2803, Hβ λ4861, and [O III] λλ4959, 5007 emission lines, in each source. The spectral inventory will be utilized primarily to develop prescriptions for obtaining more accurate and precise redshifts, black hole masses, and accretion rates for all quasars. Additionally, the measurements will facilitate an understanding of the dependence of rest-frame ultraviolet-optical spectral properties of quasars on redshift, luminosity, and Eddington ratio, and test whether the physical properties of the quasar central engine evolve over cosmic time.
AB - We present spectroscopic measurements for 226 sources from the Gemini Near Infrared Spectrograph-Distant Quasar Survey (GNIRS-DQS). Being the largest uniform, homogeneous survey of its kind, it represents a fluxlimited sample (mi≤19.0 mag, H≤16.5 mag) of Sloan Digital Sky Survey (SDSS) quasars at 1.5 ≤ z ≤ 3.5 with a monochromatic luminosity (λLλ) at 5100 Å in the range of 1044-1046 erg s-1. A combination of the GNIRS and SDSS spectra covers principal quasar diagnostic features, chiefly the C IV λ1549, Mg II λλ2798, 2803, Hβ λ4861, and [O III] λλ4959, 5007 emission lines, in each source. The spectral inventory will be utilized primarily to develop prescriptions for obtaining more accurate and precise redshifts, black hole masses, and accretion rates for all quasars. Additionally, the measurements will facilitate an understanding of the dependence of rest-frame ultraviolet-optical spectral properties of quasars on redshift, luminosity, and Eddington ratio, and test whether the physical properties of the quasar central engine evolve over cosmic time.
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U2 - 10.3847/1538-4365/abc705
DO - 10.3847/1538-4365/abc705
M3 - Article
AN - SCOPUS:85101601199
SN - 0067-0049
VL - 252
JO - Astrophysical Journal, Supplement Series
JF - Astrophysical Journal, Supplement Series
IS - 2
M1 - abc705
ER -