| Multiwavelength Properties of Infrared-faint Radio Sources Based on Analysis of Their Spectral Energy Distribution | |
Zhang, Yihang1,2; Fan, Lulu1,2,3; An, Tao4; Yang, Jun5; Sun, Weibin1,2; Yu, Haoran1,2; Han YK(韩云坤)6,7,8,9
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| 发表期刊 | ASTROPHYSICAL JOURNAL
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| 2025 | |
| 卷号 | 978期号:1 |
| DOI | 10.3847/1538-4357/ad968b |
| 产权排序 | 第6完成单位 |
| 收录类别 | SCI |
| 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. |
| 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 |
| 项目资助者 | 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 |
| 语种 | 英语 |
| 学科领域 | 天文学 ; 星系与宇宙学 ; 恒星与银河系 |
| 文章类型 | Article |
| 出版者 | IOP Publishing Ltd |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| ISSN | 0004-637X |
| URL | 查看原文 |
| WOS记录号 | WOS:001385271500001 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | ACTIVE GALACTIC NUCLEI ; DEEP FIELD-SOUTH ; AGN DUSTY TORI ; PHOTOMETRIC REDSHIFT ; STAR-FORMATION ; ARRAY CAMERA ; SKY SURVEY ; GALAXIES ; HERSCHEL ; 1ST |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/27940 |
| 专题 | 大样本恒星演化研究组 中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Department of Astronomy, University of Science and Technology of China, Hefei 230026, People's Republic of China; [email protected], [email protected]; 2.School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, People's Republic of China; 3.Deep Space Exploration Laboratory, Hefei 230088, People's Republic of China; 4.Key Laboratory of Radio Astronomy, Shanghai Astronomical Observatory, 80 Nandan Road, 200030 Shanghai, People's Republic of China; 5.Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, Sweden; 6.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, People's Republic of China; 7.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, People's Republic of China; 8.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; 9.International Centre of Supernovae, Yunnan Key Laboratory, Kunming 650216, People's Republic of China |
| 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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