On the Correlation between Atomic Gas and Bars in Galaxies
文献类型：期刊论文
| 作者 | Zhou,Zhimin1 ; Ma,Jun1,2; Wu,Hong1,2
|
| 刊名 | The Astronomical Journal
 |
| 出版日期 | 2021-05-07 |
| 卷号 | 161期号:6 |
| 关键词 | Barred spiral galaxies Galaxy evolution Interstellar atomic gas Star formation |
| ISSN号 | 0004-6256 |
| DOI | 10.3847/1538-3881/abf2ba |
| 英文摘要 | Abstract We analyze the correlation between properties of large-scale bars and atomic gas content of galaxies to explore the role of H i gas on bar evolution in galaxies. We show that the absolute bar size depends strongly on total stellar mass of galaxies and does not change significantly with H i gas fraction at fixed stellar mass. Furthermore, the physical size of the bar is small and nearly constant in high H i gas fraction and low-mass galaxies and becomes larger with increasing galactic stellar mass in low gas fraction galaxies. When the stellar masses are fixed, the relative bar length normalized to the disk shows a decrease with increasing H i gas fraction due to the larger disks in gas-richer galaxies. We measure the gas deficiency of the samples and find that the gas-rich galaxies have longer and stronger bars compared with the H i gas-deficient galaxies at fixed stellar mass, especially for the massive ones. When splitting the samples into star-forming and quiescent subgroups, the star-forming galaxies tend to have longer bars than the quiescent ones at fixed stellar mass and gas deficiency. In addition, our results suggest two different types of bar properties, in which the bars in gas-rich galaxies grow longer but retain similar axial ratio over time, while they grow longer and fatter over time in gas-poor galaxies. |
| 语种 | 英语 |
| WOS记录号 | IOP:0004-6256-161-6-ABF2BA |
| 出版者 | The American Astronomical Society |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/58173]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Zhou,Zhimin |
| 作者单位 | 1.Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012, People’s Republic of China zmzhou@nao.cas.cn 2.College of Astronomy and Space Sciences, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Zhou,Zhimin,Ma,Jun,Wu,Hong. On the Correlation between Atomic Gas and Bars in Galaxies[J]. The Astronomical Journal,2021,161(6). |
| APA | Zhou,Zhimin,Ma,Jun,&Wu,Hong.(2021).On the Correlation between Atomic Gas and Bars in Galaxies.The Astronomical Journal,161(6). |
| MLA | Zhou,Zhimin,et al."On the Correlation between Atomic Gas and Bars in Galaxies".The Astronomical Journal 161.6(2021). |
入库方式： OAI收割
来源：国家天文台
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