A Morphological Study of AGN-host Dwarf Galaxies
文献类型：期刊论文
| 作者 | Tian J(田杰)1,2 ; Zhao YH(赵应和)1,3; Li XJ(李谢瑾)1,2; Bai JM(白金明)1
|
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2025-06-10 |
| 卷号 | 986期号:1 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/add140 |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | The study of morphology in galaxies offers a convenient and quantitative method to measure the shapes and characteristics of galaxy light distribution that reflect the evolutionary history. For active galactic nucleus (AGN)-host dwarf galaxies, however, there is a lack of detailed studies of their morphologies. In this work, we compile a relatively large sample (similar to 400 members) of local AGN-host dwarf (M-star <= 10(9.5)M(circle dot) and z < 0.055) galaxies selected via various methods. We use the grz bands images from DESI DR10 and the Python package statmorph to measure nonparametric coefficients. We also carry out visual inspection with the assistance of deep learning to classify these galaxies into early-type galaxies (ETGs), late-type galaxies (LTGs), and mergers, and find that about 37%, 44%, and 13% of the total sample sources are ETGs, LTGs, and mergers, respectively. In comparison to normal dwarf galaxies, AGN-host dwarfs have a higher probability to be LTGs, and a lower merger rate, indicating that mergers/interactions are not the primary driver of AGN activities. Among the subsamples selected with different methods, the Baldwin, Phillips & Terlevich sample has the highest fraction of ETGs, the variability sample consists of the largest fraction of LTGs, and the mid-IR sample contains the most mergers. |
| 学科主题 | 天文学 ; 天体物理学 ; 高能天体物理学 ; 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 ; BLACK-HOLE GROWTH ; X-RAY-EMISSION ; NUCLEAR ACTIVITY ; ENVIRONMENTAL DEPENDENCE ; STELLAR POPULATIONS ; LUMINOSITY FUNCTION ; EVOLUTION ; NEARBY ; MERGER |
| 资助项目 | MOST divided by National Natural Science Foundation of China (NSFC)[CMS-CSST-2021-A06]; China Manned Space Project[12173079]; NSFC; Dark Energy Camera Legacy Survey; NSF's NOIRLab; Association of Universities for Research in Astronomy (AURA); National Science Foundation; Lawrence Berkeley National Laboratory (LBNL) - National Aeronautics and Space Administration; Office of Science, Office of High Energy Physics of the U.S. Department of Energy; National Energy Research Scientific Computing Center, a DOE Office of Science User Facility; U.S. National Science Foundation, Division of Astronomical Sciences; Chinese Academy of Sciences; Chinese National Natural Science Foundation; University of California |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001504277100001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | MOST divided by National Natural Science Foundation of China (NSFC)[CMS-CSST-2021-A06] ; China Manned Space Project[12173079] ; NSFC ; Dark Energy Camera Legacy Survey ; NSF's NOIRLab ; Association of Universities for Research in Astronomy (AURA) ; National Science Foundation ; Lawrence Berkeley National Laboratory (LBNL) - National Aeronautics and Space Administration ; Office of Science, Office of High Energy Physics of the U.S. Department of Energy ; National Energy Research Scientific Computing Center, a DOE Office of Science User Facility ; U.S. National Science Foundation, Division of Astronomical Sciences ; Chinese Academy of Sciences ; Chinese National Natural Science Foundation ; University of California |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28337]  |
| 专题 | 星系类星体研究组 云南天文台_丽江天文观测站（南方基地） |
| 通讯作者 | Zhao YH(赵应和) |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; zhaoyinghe@ynao.ac.cn; 2.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China; 3.Key Laboratory of Radio Astronomy and Technology (Chinese Academy of Sciences), A20 Datun Road, Chaoyang District, Beijing 100101, People's Republic of China |
| 推荐引用方式 GB/T 7714 | Tian J,Zhao YH,Li XJ,et al. A Morphological Study of AGN-host Dwarf Galaxies[J]. ASTROPHYSICAL JOURNAL,2025,986(1). |
| APA | 田杰,赵应和,李谢瑾,&白金明.(2025).A Morphological Study of AGN-host Dwarf Galaxies.ASTROPHYSICAL JOURNAL,986(1). |
| MLA | 田杰,et al."A Morphological Study of AGN-host Dwarf Galaxies".ASTROPHYSICAL JOURNAL 986.1(2025). |
入库方式： OAI收割
来源：云南天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。