PMO OpenIR  > 暗物质和空间天文实验室
Unveiling deeply embedded sources by near-infrared polarimetric imaging
Yao, YQ; Ishii, M; Nagata, T; Nakaya, H; Sato, S
2000-10-10
Source PublicationASTROPHYSICAL JOURNAL
Volume542Issue:1Pages:392-399
AbstractNear-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.
KeywordInfrared : 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
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordYOUNG 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
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000089954400037
Citation statistics
Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/15992
Collection暗物质和空间天文实验室
Affiliation1.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
Recommended Citation
GB/T 7714
Yao, YQ,Ishii, M,Nagata, T,et al. Unveiling deeply embedded sources by near-infrared polarimetric imaging[J]. ASTROPHYSICAL JOURNAL,2000,542(1):392-399.
APA Yao, YQ,Ishii, M,Nagata, T,Nakaya, H,&Sato, S.(2000).Unveiling deeply embedded sources by near-infrared polarimetric imaging.ASTROPHYSICAL JOURNAL,542(1),392-399.
MLA Yao, YQ,et al."Unveiling deeply embedded sources by near-infrared polarimetric imaging".ASTROPHYSICAL JOURNAL 542.1(2000):392-399.
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