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From filamentary clouds to prestellar cores to the stellar IMF: Initial highlights from the Herschel Gould Belt Survey
文献类型：期刊论文
| 作者 | Andre, Ph.1; Men'shchikov, A.1; Bontemps, S.1; Koenyves, V.1; Motte, F.1; Schneider, N.1; Didelon, P.1; Minier, V.1; Saraceno, P.5; Ward-Thompson, D.3 |
| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2010-07-01 |
| 卷号 | 518 |
| 关键词 | stars: formation circumstellar matter ISM: clouds ISM: structure submillimeter: ISM |
| 英文摘要 | We summarize the first results from the Gould Belt Survey, obtained toward the Aquila rift and Polaris Flare regions during the science demonstration phase of Herschel. Our 70-500 mu m images taken in parallel mode with the SPIRE and PACS cameras reveal a wealth of filamentary structure, as well as numerous dense cores embedded in the filaments. Between similar to 350 and 500 prestellar cores and similar to 45-60 Class 0 protostars can be identified in the Aquila field, while similar to 300 unbound starless cores and no protostars are observed in the Polaris field. The prestellar core mass function (CMF) derived for the Aquila region bears a strong resemblance to the stellar initial mass function (IMF), already confirming the close connection between the CMF and the IMF with much better statistics than earlier studies. Comparing and contrasting our Herschel results in Aquila and Polaris, we propose an observationally-driven scenario for core formation according to which complex networks of long, thin filaments form first within molecular clouds, and then the densest filaments fragment into a number of prestellar cores via gravitational instability. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000281527200103 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/8378]  |
| 专题 | 国家天文台_应用天文研究部 |
| 作者单位 | 1.Univ Paris Diderot, Lab AIM,CEA Saclay, CEA DSM CNRS, IRFU Serv Astrophys, F-91191 Gif Sur Yvette, France 2.Univ Paris 11, CNRS, Inst Astrophys Spatiale, F-91405 Orsay, France 3.Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales 4.Univ Aix Marseille 1, CNRS, INSU, Lab Astrophys Marseille, F-13388 Marseille 13, France 5.INAF Ist Fis Spazio Interplanetario, I-00133 Rome, Italy 6.Univ Toulouse, CNRS UPS, CESR, Observ Midi Pyrenees, F-31028 Toulouse 04, France 7.Katholieke Univ Leuven, Inst Sterrenkunde, B-3001 Louvain, Belgium 8.Observ Strasbourg, CDS, F-67000 Strasbourg, France 9.IRAM, F-38406 St Martin Dheres, France 10.Herzberg Inst Astrophys, Natl Res Council Canada, Victoria, BC V9E 2E7, Canada |
| 推荐引用方式 GB/T 7714 | Andre, Ph.,Men'shchikov, A.,Bontemps, S.,et al. From filamentary clouds to prestellar cores to the stellar IMF: Initial highlights from the Herschel Gould Belt Survey[J]. ASTRONOMY & ASTROPHYSICS,2010,518. |
| APA | Andre, Ph..,Men'shchikov, A..,Bontemps, S..,Koenyves, V..,Motte, F..,...&Zavagno, A..(2010).From filamentary clouds to prestellar cores to the stellar IMF: Initial highlights from the Herschel Gould Belt Survey.ASTRONOMY & ASTROPHYSICS,518. |
| MLA | Andre, Ph.,et al."From filamentary clouds to prestellar cores to the stellar IMF: Initial highlights from the Herschel Gould Belt Survey".ASTRONOMY & ASTROPHYSICS 518(2010). |
入库方式： OAI收割
来源：国家天文台
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