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题名: Unveiling deeply embedded sources by near-infrared polarimetric imaging
作者: Yao, YQ; Ishii, M; Nagata, T; Nakaya, H; Sato, S
刊名: ASTROPHYSICAL JOURNAL
出版日期: 2000-10-10
卷号: 542, 期号:1, 页码:392-399
关键词: infrared : ISM : lines and bands ; ISM : individual (AFGL 5180, AFGL 6366S, IRAS 20050+2720, IRAS 20126+4104, IRAS 20188+3928, S233) ; polarization ; reflection nebulae ; stars : formation
文章类型: Article
英文摘要: Near-infrared polarimetric images are presented for six molecular outflow sources: IRAS 20050+2720, IRAS 20126+4104, IRAS 20188+3928, S233, AFGL 5180, and AFGL 6366S. All the regions are found to exhibit reflection nebulae and to be associated with massive and clustered star formation. By inspecting polarimetric patterns in the nebulae, we have identified six deeply embedded sources (DESs) which illuminate circumstellar nebulosity but are not detectable in wavelengths shorter than 2 mum While the DES in IRAS 20050 coincides with an infrared source in a previous, longer wavelength observation and the one in IRAS 20126 with a hot molecular core, the nature of the other newly discovered DESs is not known. From the compilation of the observations of DESs over a large wavelength range, we suspect that the DESs possess characteristics similar to hot molecular cores and are likely to be in the preultracompact H nr region phase of massive star 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]: YOUNG STELLAR OBJECTS ; MOLECULAR CLOUD G35.2-0.74 ; MODEL SCATTERING ENVELOPES ; H-II-REGIONS ; BIPOLAR NEBULAE ; H2O MASERS ; (PROTO)STAR IRAS-20126+4104 ; PROTOSTELLAR CANDIDATES ; MULTIPOLAR OUTFLOW ; POLARIZATION MAPS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000089954400037
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内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15992
Appears in Collections:暗物质和空间天文实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Natl Astron Observ, Purple Mtn Observ, Nanjing 210008, Peoples R China
2.Natl Astron Observ, Okayama Astrophys Observ, Okayama 7190232, Japan
3.Nagoya Univ, Fac Sci, Dept Astrophys, Nagoya, Aichi 4648602, Japan
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