Academic Journal
The Bluedisks project, a study of unusually H I-rich galaxies - I. H I sizes and morphology
| العنوان: | The Bluedisks project, a study of unusually H I-rich galaxies - I. H I sizes and morphology |
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| المؤلفون: | Wang, Jing, Kauffmann, Guinevere, Jozsa, Gyula I. G., Serra, Paolo, van der Hulst, Thijs, Bigiel, Frank, Brinchmann, Jarle, Verheijen, M. A. W., Oosterloo, Tom, Wang, Enci, Li, Cheng, den Heijer, Milan, Kerp, Juergen |
| المصدر: | Wang , J , Kauffmann , G , Jozsa , G I G , Serra , P , van der Hulst , T , Bigiel , F , Brinchmann , J , Verheijen , M A W , Oosterloo , T , Wang , E , Li , C , den Heijer , M & Kerp , J 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 , vol. 433 , no. 1 , pp. 270-294 . https://doi.org/10.1093/mnras/stt722 |
| سنة النشر: | 2013 |
| المجموعة: | University of Groningen research database |
| مصطلحات موضوعية: | galaxies: evolution, galaxies: ISM, galaxies: spiral, DIFFUSE IONIZED-GAS, HIGH-VELOCITY CLOUDS, ARECIBO SDSS SURVEY, IRAM LEGACY SURVEY, IRREGULAR GALAXIES, MASSIVE GALAXIES, SPIRAL GALAXIES, FORMATION HISTORIES, METAL ABUNDANCES, LOCAL UNIVERSE |
| الوصف: | 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. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | https://research.rug.nl/en/publications/b62f58b5-fe0c-40da-b58b-831270ce8917 |
| DOI: | 10.1093/mnras/stt722 |
| الاتاحة: | https://hdl.handle.net/11370/b62f58b5-fe0c-40da-b58b-831270ce8917 https://research.rug.nl/en/publications/b62f58b5-fe0c-40da-b58b-831270ce8917 https://doi.org/10.1093/mnras/stt722 https://pure.rug.nl/ws/files/56505262/The_Bluedisks_project.pdf |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.CF232043 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1093/mnras/stt722 |
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