YNAO OpenIR  > 大样本恒星演化研究组
A Census of Optically Dark Massive Galaxies in the Early Universe from Magnification by Lensing Galaxy Clusters
Shu, Xinwen1; Yang, Lei1; Liu, Daizhong2; Wang, Wei-Hao3; Wang, Tao4; Han YK(韩云坤)5; Huang, Xingxing6; Lim, Chen-Fatt3; Chang, Yu-Yen3,7; Zheng, Wei8; Zheng, XianZhong9; Wang, Junxian6; Kong, Xu6
发表期刊ASTROPHYSICAL JOURNAL
2022-02-01
卷号926期号:2
DOI10.3847/1538-4357/ac3de5
产权排序第5完成单位
收录类别SCI
摘要

We present ALMA 870 mu m and JCMT/SCUBA2 850 mu m dust continuum observations of a sample of optically dark and strongly lensed galaxies in cluster fields. The ALMA and SCUBA2 observations reach a median rms of similar to 0.11 mJy and 0.44 mJy, respectively, with the latter close to the confusion limit of the data at 850 mu m. This represents one of the most sensitive searches for dust emission in optically dark galaxies. We detect the dust emission in 12 out of 15 galaxies at >3.8 sigma, corresponding to a detection rate of 80%. Thanks to the gravitational lensing, we reach a deeper limiting flux than previous surveys in blank fields by a factor of similar to 3. We estimate delensed infrared luminosities in the range 2.9 x 10(11)-4.9 x 10(12) L-circle dot, which correspond to dust-obscured star formation rates of similar to 30-520 M-circle dot yr(-1). Stellar population fits to the optical-to-NIR photometric data yield a median redshift z = 4.26 and delensed stellar mass 6.0 x 10(10) M-circle dot. They contribute a lensing-corrected star formation rate density at least an order of magnitude higher than that of equivalently massive UV-selected galaxies at z > 3. The results suggest that there is a missing population of massive star-forming galaxies in the early Universe, which may dominate the SFR density at the massive end (M-* > 10(10.3) M-circle dot). Five optically dark galaxies are located within r < 50 '' in one cluster field, representing a potential overdensity structure that has a physical origin at a confidence level >99.974% from Poisson statistics. Follow-up spectroscopic observations with ALMA and/or JWST are crucial to confirm whether it is associated with a protocluster at similar redshifts.

资助项目NASA/ESA Hubble Space Telescope from the CLASH Multi-Cycle Treasury Program[GO-12065] ; NASANational Aeronautics & Space Administration (NASA)[NAS 5-26555] ; Chinese Academy of SciencesChinese Academy of Sciences[XDB09000000] ; Science and Technology Facilities Council of the United KingdomUK Research & Innovation (UKRI)Science & Technology Facilities Council (STFC) ; Chinese NSFNational Natural Science Foundation of China (NSFC)[11822301] ; Chinese NSFNational Natural Science Foundation of China (NSFC)[12192221] ; Chinese NSFNational Natural Science Foundation of China (NSFC)[11890693] ; Chinese NSFNational Natural Science Foundation of China (NSFC)[11773063] ; China Manned Space Project[CMS-CSST-2021-A06] ; Ministry of Science and Technology of TaiwanMinistry of Science and Technology, Taiwan[110-2112-M-001-006] ; Natural Science Foundation of Yunnan ProvinceNatural Science Foundation of Yunnan Province[2017FB007]
项目资助者NASA/ESA Hubble Space Telescope from the CLASH Multi-Cycle Treasury Program[GO-12065] ; NASANational Aeronautics & Space Administration (NASA)[NAS 5-26555] ; Chinese Academy of SciencesChinese Academy of Sciences[XDB09000000] ; Science and Technology Facilities Council of the United KingdomUK Research & Innovation (UKRI)Science & Technology Facilities Council (STFC) ; Chinese NSFNational Natural Science Foundation of China (NSFC)[11822301, 12192221, 11890693, 11773063] ; China Manned Space Project[CMS-CSST-2021-A06] ; Ministry of Science and Technology of TaiwanMinistry of Science and Technology, Taiwan[110-2112-M-001-006] ; Natural Science Foundation of Yunnan ProvinceNatural Science Foundation of Yunnan Province[2017FB007]
语种英语
学科领域天文学 ; 星系与宇宙学
学科门类理学 ; 理学::天文学
文章类型Article
出版者IOP Publishing Ltd
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
WOS记录号WOS:000758434400001
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]DEEP-FIELD-SOUTH ; LYMAN BREAK GALAXIES ; SUBMILLIMETER GALAXIES ; ALMA SURVEY ; STAR-FORMATION ; SOURCE CATALOG ; REDSHIFT SURVEY ; BULLET CLUSTER ; NUMBER COUNTS ; C II
引用统计
被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.ynao.ac.cn/handle/114a53/24918
专题大样本恒星演化研究组
通讯作者Shu, Xinwen
作者单位1.Department of Physics, Anhui Normal University, Wuhu, Anhui, 241002, People's Republic of China; xwshu@ahnu.edu.cn;
2.Max-Planck-Institut für Extraterrestrische Physik (MPE), Giessenbachstr. 1, D-85748 Garching, Germany;
3.Academia Sinica Institute of Astronomy and Astrophysics (ASIAA), No. 1, Section 4, Roosevelt Rd., Taipei 10617, Taiwan; whwang@asiaa.sinica.edu.tw;
4.School of Astronomy and Space Science, Nanjing University, Nanjing 210093, People's Republic of China;
5.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, People's Republic of China;
6.CAS Key Laboratory for Researches in Galaxies and Cosmology, Department of Astronomy, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China;
7.Department of Physics, National Chung Hsing University, 40227, Taichung, Taiwan;
8.Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218, USA;
9.Purple Mountain Observatory, Chinese Academy of Sciences, 10 Yuanhua Rd., Nanjing, 210023, People's Republic of China
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Shu, Xinwen,Yang, Lei,Liu, Daizhong,et al. A Census of Optically Dark Massive Galaxies in the Early Universe from Magnification by Lensing Galaxy Clusters[J]. ASTROPHYSICAL JOURNAL,2022,926(2).
APA Shu, Xinwen.,Yang, Lei.,Liu, Daizhong.,Wang, Wei-Hao.,Wang, Tao.,...&Kong, Xu.(2022).A Census of Optically Dark Massive Galaxies in the Early Universe from Magnification by Lensing Galaxy Clusters.ASTROPHYSICAL JOURNAL,926(2).
MLA Shu, Xinwen,et al."A Census of Optically Dark Massive Galaxies in the Early Universe from Magnification by Lensing Galaxy Clusters".ASTROPHYSICAL JOURNAL 926.2(2022).
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