2 papers
astro-ph.GA2026
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…
astro-ph.GA2025
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…