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Multiwavelength Properties of Infrared-faint Radio Sources Based on Analysis of Their Spectral Energy Distribution

文献类型：期刊论文

作者Zhang, Yihang8,9; Fan, Lulu7,8,9; An, Tao3; Yang, Jun6; Sun, Weibin8,9; Yu, Haoran8,9; Han YK(韩云坤)1,2,4,5
刊名ASTROPHYSICAL JOURNAL
出版日期2025
卷号978期号:1
ISSN号0004-637X
DOI10.3847/1538-4357/ad968b
产权排序第6完成单位
文献子类Article
英文摘要Infrared-faint radio sources (IFRSs) are believed to be a rare class of radio-loud active galactic nuclei (AGNs) characterized by their high radio-to-infrared flux density ratios of up to several thousand. Previous studies have shown that a fraction of IFRSs are likely to be hosted in dust-obscured galaxies. In this paper, our aim is to probe the dust properties, star formation rate (SFR), and AGN activity of IFRSs by modeling the UV-to-infrared spectral energy distribution (SED) of 20 IFRSs with spectroscopic redshifts ranging from 1.2 to 3.7. We compare the Bayesian evidence of a three-component model (stellar, AGN, and cold dust) with that of a two-component model (stellar and cold dust) for six IFRSs in our sample with far-infrared photometry and find that the three-component model has significantly higher Bayesian evidence, suggesting that IFRSs are most likely to be AGNs. The median SED of our IFRS sample shows similarities to an AGN-starburst composite in the IR regime. The derived IR luminosities of IFRSs indicate that they are low-luminosity counterparts of high-redshift radio galaxies. We disentangle the contributions of AGN-heated and star formation-heated dust to the IR luminosity of IFRSs and find that our sample is likely AGN-dominated. However, despite the evidence for significant impact of an AGN on the host galaxy, the AGN luminosity of our sample does not show correlation with the SFR of the sources.
学科主题天文学 ; 星系与宇宙学 ; 恒星与银河系
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词ACTIVE GALACTIC NUCLEI ; DEEP FIELD-SOUTH ; AGN DUSTY TORI ; PHOTOMETRIC REDSHIFT ; STAR-FORMATION ; ARRAY CAMERA ; SKY SURVEY ; GALAXIES ; HERSCHEL ; 1ST
资助项目MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[2021YFA1600401]; MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[2021YFA1600400]; National Key Research and Development Program of China[12173037]; National Key Research and Development Program of China[12233008]; National Natural Science Foundation of China (NSFC)[YSBR-092]; CAS Project for Young Scientists in Basic Research[WK3440000006]; Fundamental Research Funds for the Central Universities; Cyrus Chun Ying Tang Foundations; Light of West China Program of Chinese Academy of Sciences; Yunnan Ten Thousand Talents Plan Young & Elite Talents Project[202201BC070003]; Natural Science Foundation of Yunnan Province[202302AN360001]; International Centre of Supernovae, Yunnan Key Laboratory
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001385271500001
出版者IOP Publishing Ltd
资助机构MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[2021YFA1600401, 2021YFA1600400] ; National Key Research and Development Program of China[12173037, 12233008] ; National Natural Science Foundation of China (NSFC)[YSBR-092] ; CAS Project for Young Scientists in Basic Research[WK3440000006] ; Fundamental Research Funds for the Central Universities ; Cyrus Chun Ying Tang Foundations ; Light of West China Program of Chinese Academy of Sciences ; Yunnan Ten Thousand Talents Plan Young & Elite Talents Project[202201BC070003] ; Natural Science Foundation of Yunnan Province[202302AN360001] ; International Centre of Supernovae, Yunnan Key Laboratory
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/27940]  
专题云南天文台_大样本恒星演化研究组
云南天文台_中国科学院天体结构与演化重点实验室
作者单位1.International Centre of Supernovae, Yunnan Key Laboratory, Kunming 650216, People's Republic of China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, People's Republic of China;
3.Key Laboratory of Radio Astronomy, Shanghai Astronomical Observatory, 80 Nandan Road, 200030 Shanghai, People's Republic of China;
4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, People's Republic of China;
5.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, People's Republic of China;
6.Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, Sweden;
7.Deep Space Exploration Laboratory, Hefei 230088, People's Republic of China;
8.School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, People's Republic of China;
9.Department of Astronomy, University of Science and Technology of China, Hefei 230026, People's Republic of China; zhang_yh@mail.ustc.edu.cn, llfan@ustc.edu.cn;
推荐引用方式
GB/T 7714		 Zhang, Yihang,Fan, Lulu,An, Tao,et al. Multiwavelength Properties of Infrared-faint Radio Sources Based on Analysis of Their Spectral Energy Distribution[J]. ASTROPHYSICAL JOURNAL,2025,978(1).
APA Zhang, Yihang.,Fan, Lulu.,An, Tao.,Yang, Jun.,Sun, Weibin.,...&韩云坤.(2025).Multiwavelength Properties of Infrared-faint Radio Sources Based on Analysis of Their Spectral Energy Distribution.ASTROPHYSICAL JOURNAL,978(1).
MLA Zhang, Yihang,et al."Multiwavelength Properties of Infrared-faint Radio Sources Based on Analysis of Their Spectral Energy Distribution".ASTROPHYSICAL JOURNAL 978.1(2025).

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