The growth of the central region by acquisition of counterrotating gas in star-forming galaxies
文献类型：期刊论文
| 作者 | Chen, Yan-Mei2,3,4; Shi, Yong2,3,4; Tremonti, Christy A.5; Bershady, Matt5; Merrifield, Michael6; Emsellem, Eric7,8,9; Jin, Yi-Fei2,3,4; Huang, Song10; Fu, Hai11; Wake, David A.12 |
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2016-10-19 |
| 卷号 | 7 |
| ISSN号 | 2041-1723 |
| DOI | 10.1038/ncomms13269 |
| 英文摘要 | Galaxies grow through both internal and external processes. In about 10% of nearby red galaxies with little star formation, gas and stars are counter-rotating, demonstrating the importance of external gas acquisition in these galaxies. However, systematic studies of such phenomena in blue, star-forming galaxies are rare, leaving uncertain the role of external gas acquisition in driving evolution of blue galaxies. Here, based on new measurements with integral field spectroscopy of a large representative galaxy sample, we find an appreciable fraction of counter-rotators among blue galaxies (9 out of 489 galaxies). The central regions of blue counter-rotators show younger stellar populations and more intense, ongoing star formation than their outer parts, indicating ongoing growth of the central regions. The result offers observational evidence that the acquisition of external gas in blue galaxies is possible; the interaction with pre-existing gas funnels the gas into nuclear regions (<1 kpc) to form new stars. |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000385618300001 |
| 出版者 | NATURE PUBLISHING GROUP |
| 源URL | [http://119.78.226.72/handle/331011/32729]  |
| 专题 | 中国科学院上海天文台 |
| 通讯作者 | Chen, Yan-Mei |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 10012, Peoples R China 2.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China 3.Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210093, Jiangsu, Peoples R China 4.Collaborat Innovat Ctr Modern Astron & Space Expl, Nanjing 210093, Jiangsu, Peoples R China 5.Univ Wisconsin, Dept Astron, 1150 Univ Ave, Madison, WI 53706 USA 6.Univ Nottingham, Sch Phys & Astron, Univ Pk, Nottingham NG7 2RD, England 7.European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany 8.Univ Lyon 1, Observ Lyon, Ctr Rech Astrophys Lyon, 9 Ave Charles Andre, F-69230 St Genis Laval, France 9.Univ Lyon 1, Observ Lyon, Ecole Normale Super Lyon, 9 Ave Charles Andre, F-69230 St Genis Laval, France 10.Univ Tokyo, Todai Inst Adv Study, Kavli Inst Phys & Math Univ Kavli IPMU WPI, Kashiwa, Chiba 2778583, Japan |
| 推荐引用方式 GB/T 7714 | Chen, Yan-Mei,Shi, Yong,Tremonti, Christy A.,et al. The growth of the central region by acquisition of counterrotating gas in star-forming galaxies[J]. NATURE COMMUNICATIONS,2016,7. |
| APA | Chen, Yan-Mei.,Shi, Yong.,Tremonti, Christy A..,Bershady, Matt.,Merrifield, Michael.,...&Yan, Ren-Bin.(2016).The growth of the central region by acquisition of counterrotating gas in star-forming galaxies.NATURE COMMUNICATIONS,7. |
| MLA | Chen, Yan-Mei,et al."The growth of the central region by acquisition of counterrotating gas in star-forming galaxies".NATURE COMMUNICATIONS 7(2016). |
入库方式： OAI收割
来源：上海天文台
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