The Large Sky Area Multi-object Fiber Spectroscopic Telescope (LAMOST) Quasar Survey: The Fourth and Fifth Data Releases

By S. Yao, Xue-bing Wu, Y. Ai, Jinyi Yang, Qian Yang, Xiaoyi Dong, R. Joshi, Feige Wang, Xiaotong Feng, Yuming Fu and 8 more. Astrophysical Journal Supplement Series, 2018

366 citations recorded by the source corpus.

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. There are a total of 19,253 quasars identified by visual inspections of the spectra. Among them, 11,458 were independently discovered by LAMOST, in which 3296 were reported by the SDSS DR12 and DR14 quasar catalog after our survey began, while the remaining 8162 are new discoveries of LAMOST. We provide the emission line measurements for Hα, Hβ, Mg ii, and/or C iv for 18,100 quasars. Since LAMOST does not have absolute flux calibration information, we obtain the monochromatic continuum luminosities by fitting the SDSS photometric data using the quasar spectra, and then estimate the black hole masses. The catalog and spectra for these quasars are available online. This is the third installment in the series of LAMOST quasar surveys that has released spectra for ∼43,000 quasars to date. There are 24,772 independently discovered quasars, 17,128 of which are newly discovered. In addition to this great supplement to the new quasar discoveries, LAMOST has also provided a large database (overlapped with SDSS) for investigating quasar spectral variability and discovering unusual quasars, including changing-look quasars, with ongoing and upcoming large surveys.

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/e2f097d76a9a33d50a026f8fd1f79cf654d1949d

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Citations in the corpus

The Robotic Multiobject Focal Plane System of the Dark Energy Spectroscopic Instrument (DESI) (2022, methodology): “Robotic systems have been demonstrated on both the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) (Cui et al. 2012) and the Fiber Multi-Object Spectrograph (FMOS) (Kimura et al. 2010) on the Subaru telescope.”
Painting a portrait of the Galactic disc with its stellar clusters (2020, background): “…surveys such as APOGEE (Majewski et al. 2017), Gaia-ESO (Gilmore et al. 2012; Randich et al. 2013), GALAH (De Silva et al. 2015), LAMOST (Cui et al. 2012), or the upcoming WEAVE (Dalton et al. 2012) and 4MOST (de Jong et al. 2012; Guiglion et al. 2019) will provide additional…”
The biggest splash (2019, neutral): “…(Majewski et al. 2017; Garcı́a Pérez et al. 2016) DR14 (Abolfathi et al. 2018), LAMOST DR3 (Large Sky Area MultiObject Fibre Spectroscopic Telescope, Cui et al. 2012; Zhao et al. 2012), RAVE (Steinmetz et al. 2006) DR5 (Kunder et al. 2017), Gaia-ESO DR3 (Gilmore et al. 2012), GALAH (GALactic…”