The Sloan Digital Sky Survey Quasar Catalog: Sixteenth Data Release [PDF]
Astrophysical Journal Supplement Series, 2020 We present the final Sloan Digital Sky Survey IV (SDSS-IV) quasar catalog from Data Release 16 of the extended Baryon Oscillation Spectroscopic Survey (eBOSS).
B. Lyke +36 more
semanticscholar +1 more source
Probing Early Supermassive Black Hole Growth and Quasar Evolution with Near-infrared Spectroscopy of 37 Reionization-era Quasars at 6.3 < z ≤ 7.64 [PDF]
Astrophysical Journal, 2021 We report the results of near-infrared spectroscopic observations of 37 quasars in the redshift range 6.3 < z ≤ 7.64, including 32 quasars at z > 6.5, forming the largest quasar near-infrared spectral sample at this redshift. The spectra, taken with Keck,
Jinyi Yang +20 more
semanticscholar +1 more source
The Kinematics of z ≳ 6 Quasar Host Galaxies [PDF]
Astrophysical Journal, 2021 We explore the kinematics of 27 z ≳ 6 quasar host galaxies observed in [C ii] 158 μm ([C ii]) emission with the Atacama Large Millimeter/submillimeter Array at a resolution of ≈025. We find that nine of the galaxies show disturbed [C ii] emission, due to
M. Neeleman +11 more
semanticscholar +1 more source
Spectral Classification of Quasar Subject to Redshift: A Statistical Study
Computer Sciences & Mathematics Forum, 2023 Quasars are astronomical star-like objects having a large ultraviolet flux of radiation accompanied by generally broad emission lines and absorption lines in some cases found at large redshift. The used data is extracted from the Veron Cetti Catalogue of
Prithwish Ghosh, Shinjon Chakraborty
doaj +1 more source
Pōniuā‘ena: A Luminous z = 7.5 Quasar Hosting a 1.5 Billion Solar Mass Black Hole [PDF]
Astrophysical Journal, 2020 We report the discovery of a luminous quasar, J1007+2115 at z = 7.515 (“Pōniuā‘ena”), from our wide-field reionization-era quasar survey. J1007+2115 is the second quasar now known at z > 7.5, deep into the reionization epoch.
Jinyi Yang +18 more
semanticscholar +1 more source
The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: BAO and RSD measurements from anisotropic clustering analysis of the quasar sample in configuration space between redshift 0.8 and 2.2 [PDF]
Monthly notices of the Royal Astronomical Society, 2020 We measure the anisotropic clustering of the quasar sample from Data Release 16 (DR16) of the Sloan Digital Sky Survey IV extended Baryon Oscillation Spectroscopic Survey (eBOSS). A sample of 343 708 spectroscopically confirmed quasars between redshift
Jiamin Hou +29 more
semanticscholar +1 more source
The bolometric quasar luminosity function at z = 0–7 [PDF]
Monthly notices of the Royal Astronomical Society, 2020 In this paper, we provide updated constraints on the bolometric quasar luminosity function (QLF) from z = 0 to z = 7. The constraints are based on an observational compilation that includes observations in the rest-frame IR, B band, UV, soft, and hard ...
Xuejian Shen +6 more
semanticscholar +1 more source
Investigating Gravitationally Lensed Quasars Observable by Nancy Grace Roman Space Telescope
Galaxies, 2023 In this work, we investigate the possibility of observing quasars, particularly lensed quasars, by the Nancy Grace Roman Space Telescope (Roman).
Lindita Hamolli +3 more
doaj +1 more source
The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: BAO and RSD measurements from the anisotropic power spectrum of the quasar sample between redshift 0.8 and 2.2 [PDF]
Monthly notices of the Royal Astronomical Society, 2020 We measure the clustering of quasars of the final data release (DR16) of eBOSS. The sample contains $343\, 708$ quasars between redshifts 0.8 ≤ z ≤ 2.2 over $4699\, \mathrm{deg}^2$.
R. Neveux +24 more
semanticscholar +1 more source
The Large Sky Area Multi-object Fiber Spectroscopic Telescope (LAMOST) Quasar Survey: The Fourth and Fifth Data Releases [PDF]
Astrophysical Journal Supplement Series, 2018 We present Data Releases 4 and 5 of the quasar catalog from the quasar survey by the Large Sky Area Multi-object Fiber Spectroscopic Telescope (LAMOST), which includes quasars observed between 2015 September and 2017 June.
S. Yao +17 more
semanticscholar +1 more source