The Bluedisks project, a study of unusually H i-rich galaxies - I. H i sizes and morphology
文献类型：期刊论文
| 作者 | Wang, Jing1; Kauffmann, Guinevere1; Jozsa, Gyula I. G.2,3; Serra, Paolo2; van der Hulst, Thijs4; Bigiel, Frank5; Brinchmann, Jarle6; Verheijen, M. A. W.4; Oosterloo, Tom2,4; Wang, Enci7,8 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2013-07-01 |
| 卷号 | 433期号:1页码:270-294 |
| 关键词 | galaxies: evolution galaxies: ISM galaxies: spiral |
| 英文摘要 | We introduce the 'Bluedisk' project, a large programme at the Westerbork Synthesis Radio Telescope that has mapped the H i in a sample of 23 nearby galaxies with unusually high H i mass fractions, along with a similar-sized sample of control galaxies. This paper presents the sample selection, observational set-up, data reduction strategy and a first analysis of the sizes and structural properties of the H i discs. We find that the H i-rich galaxies lie on the same H i mass versus H i size relation as normal spiral galaxies, extending it to total H i masses of 2 x 10(10) M-circle dot and radii R1 of similar to 100 kpc. The H i-rich galaxies have significantly larger values of H i-to-optical size ratio and more clumpy H i discs than those of normal spirals. There is no evidence that the discs of H i-rich galaxies are more disturbed. In fact, the centre of the H i distribution corresponds more closely with the centre of the optical light in the H i-rich galaxies than in the controls. All these results argue against a scenario in which new gas has been brought in by mergers. It is possible that they may be more consistent with cooling from a surrounding quasi-static halo of warm/hot gas. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | DIFFUSE IONIZED-GAS ; HIGH-VELOCITY CLOUDS ; ARECIBO SDSS SURVEY ; IRAM LEGACY SURVEY ; IRREGULAR GALAXIES ; MASSIVE GALAXIES ; SPIRAL GALAXIES ; FORMATION HISTORIES ; METAL ABUNDANCES ; LOCAL UNIVERSE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000321461200023 |
| 公开日期 | 2014-09-22 |
| 源URL | [http://119.78.226.72//handle/331011/15189]  |
| 专题 | 上海天文台_空间导航与定位技术重点实验室 |
| 作者单位 | 1.Max Planck Inst Astrophys, D-85741 Garching, Germany 2.Netherlands Inst Radio Astron ASTRON, NL-7990 AA Dwingeloo, Netherlands 3.Argelander Inst Astron, D-53121 Bonn, Germany 4.Univ Groningen, Kapteyn Astron Inst, NL-9747 AD Groningen, Netherlands 5.Heidelberg Univ, Inst Theoret Astrophys, Zentrum Astron, D-69120 Heidelberg, Germany 6.Leiden Univ, Leiden Observ, NL-2300 RA Leiden, Netherlands 7.Max Planck Inst Astrophys, Partner Grp, Shanghai 200030, Peoples R China 8.Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jing,Kauffmann, Guinevere,Jozsa, Gyula I. G.,et al. The Bluedisks project, a study of unusually H i-rich galaxies - I. H i sizes and morphology[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2013,433(1):270-294. |
| APA | Wang, Jing.,Kauffmann, Guinevere.,Jozsa, Gyula I. G..,Serra, Paolo.,van der Hulst, Thijs.,...&Kerp, Juergen.(2013).The Bluedisks project, a study of unusually H i-rich galaxies - I. H i sizes and morphology.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,433(1),270-294. |
| MLA | Wang, Jing,et al."The Bluedisks project, a study of unusually H i-rich galaxies - I. H i sizes and morphology".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 433.1(2013):270-294. |
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来源：上海天文台
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