Catalog of QSO candidates with Gaia EDR3
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Quasars are very important in materializing the reference frame. The excess emission of AGNs (active galactic nuclei) in the mid-infrared band can be used to identify quasar...
类星体（Quasars）在构建天文参考系方面具有至关重要的意义。活动星系核（Active Galactic Nuclei, AGN）在中红外波段的过剩辐射可用于识别类星体……
