Chandra Serendipitous Extragalactic X-Ray Source ID (SEXSI) Catalog
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https://data.nasa.gov/dataset/chandra-serendipitous-extragalactic-x-ray-source-id-sexsi-catalog
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资源简介：
The Serendipitous Extragalactic X-Ray Source Identification (SEXSI) program is designed to extend greatly the sample of identified extragalactic hard X-ray (2 - 10 keV) sources...
偶遇型河外X射线源识别（Serendipitous Extragalactic X-Ray Source Identification，简称SEXSI）项目旨在大幅扩充已证认的河外硬X射线（2~10 keV）源样本。
