核光谱望远镜阵列河外巡天:扩展钱德拉南天与钱德拉北天深场星表  

The NuSTAR extragalactic surveys:Source catalogs from the Extended Chandra Deep Field-South and the Chandra Deep Field-North

作　　者：张天逸 薛永泉 Tianyi Zhang;Yongquan Xue(CAS Key Laboratory for Research in Galaxies and Cosmology,Department of Astronomy,University of Science and Technology of China,Hefei 230026,China;School of Astronomy and Space Sciences,University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学技术大学物理学院天文学系,中国科学院星系宇宙学重点实验室,安徽合肥230026 [2]中国科学技术大学天文与空间科学学院,安徽合肥230026

出　　处：《中国科学技术大学学报》2023年第7期44-54,70,共12页JUSTC

基　　金：supported by the National Natural Science Foundation of China (12025303, 11890693);the National Key R&D Program of China (2022YFF0503401);the K.C.Wong Education Foundation;the China Manned S pace Project (CMS-CSST-2021-A06)

摘　　要：我们提出一种常规且可靠的方法以获得核光谱望远镜阵列在扩展钱德拉南天深场与钱德拉北天深场的星表。核光谱望远镜阵列在扩展钱德拉南天深场的观测天区覆盖了30'×30'大小的面积,其最深曝光时长在3-24 keV波段作晕影修正后可达230 ks,共有58个源被探测到并收录在本工作的星表中;核光谱望远镜阵列在钱德拉北天深场的观测天区覆盖了7'×10'大小的面积,其最深曝光时长在3-24 keV波段作晕影修正后可达440 ks,共有42个源被首次探测到并收录在本工作的星表中。通过与钱德拉X射线天文台在对应天区的星表结果进行交叉匹配后,我们发现核光谱望远镜阵列星表中的源与它们在钱德拉X射线望远镜星表中的对应体有着大致相当的流量,由此验证了本工作两个星表的可靠性。我们的两个星表通过完全一致的方法制作而成且公开释放,这为后续涉及这两个天区的研究提供了一个统一的平台。我们的源探测方法为核光谱望远镜阵列其他河外巡天的星表制作提供了一种系统的方法。We present a routinized and reliable method to obtain source catalogs from the Nuclear Spectroscopic Telescope Array(NuSTAR)extragalactic surveys of the Extended Chandra Deep Field-South(E-CDF-S)and Chandra Deep Field-North(CDF-N).The NuSTAR E-CDF-S survey covers a sky area of≈30′×30′to a maximum depth of≈230ks corrected for vignetting in the 3–24 keV band,with a total of 58 sources detected in our E-CDF-S catalog;the NuSTAR CDFN survey covers a sky area of≈7′×10′to a maximum depth of≈440ks corrected for vignetting in the 3–24 keV band,with a total of 42 sources detected in our CDF-N catalog that is produced for the first time.We verify the reliability of our two catalogs by crossmatching them with the relevant catalogs from the Chandra X-ray observatory and find that the fluxes of our NuSTAR sources are generally consistent with those of their Chandra counterparts.Our two catalogs are produced following the exact same method and made publicly available,thereby providing a uniform platform that facilitates further studies involving these two fields.Our source-detection method provides a systematic approach for source cataloging in other NuSTAR extragalactic surveys.

关 键 词：核光谱望远镜阵列 河外巡天 X射线源 扩展钱德拉南天深场 钱德拉北天深场 

分 类 号：P157.6[天文地球—天文学]