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题名: HERSCHEL PHOTOMETRY OF DISKS AROUND LOW-MASS STARS IN THE R CrA CLOUD
作者: Harvey, Paul M.1; Henning, Thomas2; Liu Yao(刘尧)3, 4; Wolf, Sebastian5
刊名: ASTROPHYSICAL JOURNAL
出版日期: 2014-11-01
卷号: 795, 期号:1, 页码:21
关键词: brown dwarfs ; protoplanetary disks ; stars: formation
学科分类: 天文和天体物理
DOI: 10.1088/0004-637X/795/1/21
文章类型: Article
英文摘要: We report photometric results from a subset of a Herschel-PACS program to observe cool dust in disks around low-mass stars as a complement to our earlier program to measure far-infrared emission from brown dwarfs. In this latest study we observed five low-mass objects in the nearby R Corona Australis region and detected at least three at 70 mu m. Using a Monte Carlo radiative transfer code we have investigated the disk masses and geometry based on detailed spectral energy distribution (SED) modeling, and we compare these new results to those from our earlier larger sample of brown dwarfs. In particular, our SED analysis for these five objects shows again that disk geometries of brown dwarfs or low-mass stars are generally similar to their higher mass counterparts like T Tauri disks, but the range of disk mass extends to well below the value found in T Tauri stars.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: RADIATIVE-TRANSFER ; CORONA AUSTRALIS ; COLD DUST ; EVOLUTION
收录类别: SCI
语种: 英语
WOS记录号: WOS:000343857300021
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/11567
Appears in Collections:行星科学与深空探测实验室_期刊论文

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作者单位: 1.Univ Texas Austin, Dept Astron, Austin, TX 78712 USA
2.Max Planck Inst Astron, D-69117 Heidelberg, Germany
3.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
4.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China
5.Univ Kiel, Inst Theoret Phys & Astrophys, D-24098 Kiel, Germany

Recommended Citation:
Harvey, Paul M.; Henning, Thomas; Liu, Yao; Wolf, Sebastian.HERSCHEL PHOTOMETRY OF DISKS AROUND LOW-MASS STARS IN THE R CrA CLOUD,ASTROPHYSICAL JOURNAL,2014,795(1):21
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