The M 16 molecular complex under the influence of NGC 6611 Herschel's perspective of the heating effect on the Eagle Nebula
文献类型:期刊论文
作者 | Hill, T.1; Motte, F.1; Didelon, P.1; White, G. J.2,3; Marston, A. P.; Luong, Q. Nguyen1; Bontemps, S.4; Andre, Ph.1; Schneider, N.1; Hennemann, M.1 |
刊名 | ASTRONOMY & ASTROPHYSICS |
出版日期 | 2012-06-01 |
卷号 | 542 |
关键词 | ISM: clouds ISM: structure dust, extinction stars: early-type stars: protostars |
英文摘要 | We present Herschel images from the HOBYS key program of the Eagle Nebula (M 16) in the far-infrared and sub-millimetre, using the PACS and SPIRE cameras at 70 mu m, 160 mu m, 250 mu m, 350 mu m, 500 mu m. M 16, home to the Pillars of Creation, is largely under the influence of the nearby NGC 6611 high-mass star cluster. The Herschel images reveal a clear dust temperature gradient running away from the centre of the cavity carved by the OB cluster. We investigate the heating effect of NGC 6611 on the entire M 16 star-forming complex seen by Herschel including the diffuse cloud environment and the dense filamentary structures identified in this region. In addition, we interpret the three-dimensional geometry of M 16 with respect to the nebula, its surrounding environment, and the NGC 6611 cavity. The dust temperature and column density maps reveal a prominent eastern filament running north-south and away from the high-mass star-forming central region and the NGC 6611 cluster, as well as a northern filament which extends around and away from the cluster. The dust temperature in each of these filaments decreases with increasing distance from the NGC 6611 cluster, indicating a heating penetration depth of similar to 10 pc in each direction in 3-6 x 10(22) cm(-2) column density filaments. We show that in high-mass star-forming regions OB clusters impact the temperature of future star-forming sites, modifying the initial conditions for collapse and effecting the evolutionary criteria of protostars developed from spectral energy distributions. Possible scenarios for the origin of the morphology seen in this region are discussed, including a western equivalent to the eastern filament, which was destroyed by the creation of the OB cluster and its subsequent winds and radiation. |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000305803300127 |
源URL | [http://ir.bao.ac.cn/handle/114a11/6311] |
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,IRFU,CNRS,INSU, F-91191 Gif Sur Yvette, France 2.Rutherford Appleton Lab, Didcot OX11 0NL, Oxon, England 3.Open Univ, Dept Phys & Astron, Milton Keynes MK7 6AA, Bucks, England 4.Univ Bordeaux, OASU, Bordeaux, France 5.Natl Res Council Canada, Victoria, BC V9E 2E7, Canada 6.W Virginia Univ, Dept Phys, Morgantown, WV 26506 USA 7.Univ Toulouse, UPS, CESR, CNRS,UMR 5187, F-31028 Toulouse 4, France 8.IAPS, I-00133 Rome, Italy 9.Cardiff Univ, Sch Phys & Astron, Cardiff CF243AA, S Glam, Wales 10.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
推荐引用方式 GB/T 7714 | Hill, T.,Motte, F.,Didelon, P.,et al. The M 16 molecular complex under the influence of NGC 6611 Herschel's perspective of the heating effect on the Eagle Nebula[J]. ASTRONOMY & ASTROPHYSICS,2012,542. |
APA | Hill, T..,Motte, F..,Didelon, P..,White, G. J..,Marston, A. P..,...&Zavagno, A..(2012).The M 16 molecular complex under the influence of NGC 6611 Herschel's perspective of the heating effect on the Eagle Nebula.ASTRONOMY & ASTROPHYSICS,542. |
MLA | Hill, T.,et al."The M 16 molecular complex under the influence of NGC 6611 Herschel's perspective of the heating effect on the Eagle Nebula".ASTRONOMY & ASTROPHYSICS 542(2012). |
入库方式: OAI收割
来源:国家天文台
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