Carbon monoxide in an extremely metal-poor galaxy
文献类型：期刊论文
| 作者 | Shi, Yong2,3,4; Wang, Junzhi5,6; Zhang, Zhi-Yu8; Gao, Yu1,6; Hao, Cai-Na9; Xia, Xiao-Yang7,9; Gu, Qiusheng2,3,4 |
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2016-12-09 |
| 卷号 | 7 |
| ISSN号 | 2041-1723 |
| DOI | 10.1038/ncomms13789 |
| 英文摘要 | Extremely metal-poor galaxies with metallicity below 10% of the solar value in the local universe are the best analogues to investigating the interstellar medium at a quasi-primitive environment in the early universe. In spite of the ongoing formation of stars in these galaxies, the presence of molecular gas (which is known to provide the material reservoir for star formation in galaxies such as our Milky Way) remains unclear. Here we report the detection of carbon monoxide (CO), the primary tracer of molecular gas, in a galaxy with 7% solar metallicity, with additional detections in two galaxies at higher metallicities. Such detections offer direct evidence for the existence of molecular gas in these galaxies that contain few metals. Using archived infrared data, it is shown that the molecular gas mass per CO luminosity at extremely low metallicity is approximately one-thousand times the Milky Way value. |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| 出版者 | NATURE PUBLISHING GROUP |
| WOS记录号 | WOS:000389538100001 |
| 源URL | [http://119.78.226.72/handle/331011/32679]  |
| 专题 | 中国科学院上海天文台 |
| 通讯作者 | Shi, Yong |
| 作者单位 | 1.Chinese Acad Sci, Purple Mt Observ, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China 2.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China 3.Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210093, Jiangsu, Peoples R China 4.Collaborat Innovat Ctr Modern Astron & Space Expl, Nanjing 210093, Jiangsu, Peoples R China 5.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 6.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China 7.Royal Observ, Univ Edinburgh, Astron Inst, Blackford Hill, Edinburgh EH9 3HJ, Midlothian, Scotland 8.ESO, Karl Schwarzschild Str 2, D-85748 Garching, Germany 9.Tianjin Normal Univ, Tianjin Astrophys Ctr, Tianjin 300387, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Yong,Wang, Junzhi,Zhang, Zhi-Yu,et al. Carbon monoxide in an extremely metal-poor galaxy[J]. NATURE COMMUNICATIONS,2016,7. |
| APA | Shi, Yong.,Wang, Junzhi.,Zhang, Zhi-Yu.,Gao, Yu.,Hao, Cai-Na.,...&Gu, Qiusheng.(2016).Carbon monoxide in an extremely metal-poor galaxy.NATURE COMMUNICATIONS,7. |
| MLA | Shi, Yong,et al."Carbon monoxide in an extremely metal-poor galaxy".NATURE COMMUNICATIONS 7(2016). |
入库方式： OAI收割
来源：上海天文台
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