SEXSI catalog. II
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The Serendipitous Extragalactic X-ray Source Identification (SEXSI) Program is designed to expand significantly the sample of identified extragalactic hard X-ray sources at...
偶遇河外X射线源证认（Serendipitous Extragalactic X-ray Source Identification, SEXSI）计划旨在大幅扩充已证认的河外硬X射线源样本……
