An analytic model of galactic winds and mass outflows
文献类型：期刊论文
| 作者 | Shu, CG; Mo, HJ; Mao, SD |
| 刊名 | CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2005 |
| 卷号 | 5期号:4页码:327-346 |
| 关键词 | galaxies : starburst galaxies : ISM galaxies : kinematics and dynamics galaxies : formation and evolution |
| 英文摘要 | Galactic winds and mass outflows are observed both in nearby starburst galaxies and in high-redshift star-forming galaxies. We develop a simple analytic model to understand the observed superwind phenomenon with a discussion of the model uncertainties. Our model is built upon the model of McKee & Ostriker for the interstellar medium. It allows one to predict how properties of a superwind, such as wind velocity and mass outflow rate, are related to properties of its starforming host galaxy, such as size, gas density and star formation rate. The model predicts a threshold of star formation rate density for the generation of observable galactic winds. Galaxies with more concentrated star formation activities produce superwinds with higher velocities. The predicted mass outflow rates are comparable to (or slightly larger than) the corresponding star formation rates. We apply our model to both local starburst galaxies and high-redshift Lyman break galaxies, and find its predictions to be in good agreement with current observations.. Our model is simple and so can be easily incorporated into numerical simulations and semi-analytical models of galaxy formation. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | LYMAN-BREAK GALAXIES ; X-RAY-EMISSION ; STARBURST-DRIVEN SUPERWIND ; HIGH-REDSHIFT GALAXIES ; COLD DARK-MATTER ; DWARF GALAXIES ; STAR-FORMATION ; INTERSTELLAR-MEDIUM ; CHANDRA OBSERVATIONS ; INTERGALACTIC MEDIUM |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000231442100001 |
| 公开日期 | 2010-11-08 |
| 源URL | [http://119.78.226.72//handle/331011/12262]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Shanghai Normal Univ, Joint Ctr Astrophys, Shanghai 200234, Peoples R China 2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 3.Max Planck Inst Astrophys, D-85741 Garching, Germany 4.Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA 5.Univ Manchester, Jodrell Bank Observ, Macclesfield SK11 9DL, Cheshire, England |
| 推荐引用方式 GB/T 7714 | Shu, CG,Mo, HJ,Mao, SD. An analytic model of galactic winds and mass outflows[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2005,5(4):327-346. |
| APA | Shu, CG,Mo, HJ,&Mao, SD.(2005).An analytic model of galactic winds and mass outflows.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,5(4),327-346. |
| MLA | Shu, CG,et al."An analytic model of galactic winds and mass outflows".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 5.4(2005):327-346. |
入库方式： OAI收割
来源：上海天文台
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