The Large Sky Area Multi-Object Fiber Spectroscopic Telescope Quasar Survey: Quasar Properties from First Data Release

Abstract

We present preliminary results of the quasar survey in Large Sky Area Multi- Object Fiber Spectroscopic Telescope (LAMOST) first data release (DR1), which includes pilot survey and the first year regular survey. There are 3921 quasars identified with reliability, among which 1180 are new quasars discovered in the survey. These quasars are at low to median redshifts, with highest z of 4.83. We compile emission line measurements around the Hα, Hβ, Mg II, and C IV regions for the new quasars. The continuum luminosities are inferred from SDSS photo- metric data with model fitting as the spectra in DR1 are non-flux-calibrated. We also compile the virial black hole mass estimates, and flags indicating the selec- tion methods, broad absorption line quasars. The catalog and spectra for these quasars are available online. 28% of the 3921 quasars are selected with optical- infrared colours independently, indicating that the method is quite promising in completeness of quasar survey. LAMOST DR1 and the on-going quasar survey will provide valuable data in the studies of quasars.

accepted for publication in AJ

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Cited by in corpus (21)

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• A survey of luminous high-redshift quasars with SDSS and WISE. I. target selection and optical spectroscopy
• Overview of the LAMOST survey in the first decade
• Catalogues of Active Galactic Nuclei From Gaia and unWISE Data
• AGN Continuum Reverberation Mapping Based on Zwicky Transient Facility Light Curves
• The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) Quasar Survey: the 4th and 5th Data Release
• MPS-ATLAS: A fast all-in-one code for synthesising stellar spectra
• The Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) Quasar Survey: Quasar Properties from Data Release Two and Three
• The Large Sky Area Multi-object Fiber Spectroscopic Telescope (LAMOST) Quasar Survey: Quasar Properties from Data Release Six to Nine
• A Systematic Analysis of Stellar Populations in the Host Galaxies of Changing-look AGNs
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• Central velocity dispersion catalog of LAMOST-DR7 galaxies
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• Characterizing Some Gaia Alerts with LAMOST and SDSS