4 papers
The Large Sky Area Multi-object Fiber Spectroscopic Telescope (LAMOST) Quasar Survey: Quasar Properties from Data Release 10 to 12
Bing Lyu, Xue-Bing Wu, Jun-Jie Jin +9
We present the quasar catalog from Data Releases 10 to 12 of the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) Quasar Survey, comprising quasars observed betwe…
Finding Quasars behind the Galactic Plane. IV. Candidate Selection from Chandra with Random Forest
Xu Zhang, Yanli Ai, Yanxia Zhang +8
Quasar samples remain severely incomplete at low Galactic latitudes because of strong extinction and source confusion. We conduct a systematic search for quasars behind the Galacti…
The CatSouth Quasar Candidate Catalog for the Southern Sky and a Unified All-Sky Catalog Based on Gaia DR3
Yuming Fu, Xue-Bing Wu, R. J. Bouwens +12
The Gaia DR3 has provided a large sample of more than 6.6 million quasar candidates with high completeness but low purity. Previous work on the CatNorth quasar candidate catalog ha…
Highly Variable Quasar Candidates Selected from 4XMM-DR13 with Machine Learning
Heng Wang, Yanli Ai, Yanxia Zhang +6
We present a sample of 12 quasar candidates with highly variable soft X-ray emission from the 4th XMM-newton Serendipitous Source Catalog (4XMM-DR13) using random forest. We obtain…