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Unveiling the Quenching Mode of Dwarf Galaxies Beyond Redshift z =1 with JWST Image Stacking

文献类型：期刊论文

作者Li YB(李宇斌)1,2,3; Li, Nan2,3; Liu, Fengshan2,3; Mao JR(毛基荣)1,2; Cui, Qifan3,4; Ren, Jian3; Zhao, Pinsong3,5; Mo, Hao2,3; Song, Qi3; Zhang, Xin3
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2025-05-01
卷号25期号:5
关键词galaxies: high-redshift galaxies: dwarf galaxies: star formation
ISSN号1674-4527
DOI10.1088/1674-4527/adc85c
产权排序第1完成单位
文献子类Article
英文摘要Recent JWST observations have revealed that dwarf galaxies start to cease star formation at redshifts z > 1, yet the quenching process remains unclear. In this study, we selected a large sample of 3405 dwarf galaxies with stellar masses below 10(9.5)M(circle dot) and redshifts ranging from 1.0 to 1.5 across all five CANDELS fields. By utilizing multi-wavelength imaging data from both JWST and HST, we examined the growth patterns and modes of star formation quenching in dwarf galaxies during the cosmic noon era. Based on their specific star formation rates (sSFR), we categorized the sample into three subgroups: star-forming dwarf galaxies below and above the star formation main sequence (SFMS), and quiescent dwarf galaxies. To analyze the UVJ color profiles of these three subgroups of dwarf galaxies, we applied the image stacking technique. This method improves the signal-to-noise ratio and extends the color profiles to the outer regions of the galaxies. Our results show that these galaxies generally exhibit nearly flat stacked color profiles, suggesting that, on average, their growth and star formation quenching patterns are self-similar, differing from those previously observed in dwarf galaxies at lower redshifts. We further discuss the potential roles of internal and external physical processes in the star formation quenching of dwarf galaxies during the cosmic noon period.
学科主题天文学 ; 星系与宇宙学
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词STAR-FORMING GALAXIES ; CATALOGS SOURCE IDENTIFICATION ; SDSS-IV MANGA ; SIMILAR-TO 2 ; OPTICAL COLOR GRADIENTS ; INSIDE-OUT GROWTH ; LESS-THAN 1 ; STELLAR MASS ; MAIN-SEQUENCE ; GOODS-SOUTH
资助项目National Natural Science Foundation of China (NSFC)[12273052]; National Natural Science Foundation of China (NSFC)[11733006]; National Natural Science Foundation of China (NSFC)[12090040]; National Natural Science Foundation of China (NSFC)[12090041]; National Natural Science Foundation of China (NSFC)[12073051]; China Manned Space Project[CMS-CSST-2025-A07]; Ministry of Science and Technology of China[2020SKA0110100]; CAS Project for Young Scientists in Basic Research[YSBR-062]; National Key RD Program[2023YFE0101200]; NSFC[12393813]; Yunnan Revitalization Talent Support Program
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001485527700001
出版者IOP Publishing Ltd
资助机构National Natural Science Foundation of China (NSFC)[12273052, 11733006, 12090040, 12090041, 12073051] ; China Manned Space Project[CMS-CSST-2025-A07] ; Ministry of Science and Technology of China[2020SKA0110100] ; CAS Project for Young Scientists in Basic Research[YSBR-062] ; National Key RD Program[2023YFE0101200] ; NSFC[12393813] ; Yunnan Revitalization Talent Support Program
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/28301]  
专题星系类星体研究组
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China; jirongmao@mail.ynao.ac.cn;
2.University of Chinese Academy of Sciences, Beijing 100049, China; nan.li@nao.cas.cn, fsliu@nao.cas.cn;
3.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China;
4.Shanghai Key Lab for Astrophysics, Shanghai Normal University, Shanghai 200234, China;
5.Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, China
推荐引用方式
GB/T 7714		 Li YB,Li, Nan,Liu, Fengshan,et al. Unveiling the Quenching Mode of Dwarf Galaxies Beyond Redshift z =1 with JWST Image Stacking[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2025,25(5).
APA 李宇斌.,Li, Nan.,Liu, Fengshan.,毛基荣.,Cui, Qifan.,...&Zhang, Xin.(2025).Unveiling the Quenching Mode of Dwarf Galaxies Beyond Redshift z =1 with JWST Image Stacking.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,25(5).
MLA 李宇斌,et al."Unveiling the Quenching Mode of Dwarf Galaxies Beyond Redshift z =1 with JWST Image Stacking".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 25.5(2025).

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来源：云南天文台

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