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HAL - OMP | |
| HAL : hal-00702330, version 1 |
| arXiv : 1204.6317 |
| DOI : 10.1051/0004-6361/201219009 |
| Fiche détaillée |  Récupérer au format |
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| Astronomy and Astrophysics 542 (2012) A114 |
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| The M16 molecular complex under the influence of NGC6611. Herschel's perspective of the heating effect on the Eagle Nebula |
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| T. Hill 1F. Motte 2, 3 |
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| (2012) |
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| We present Herschel images from the HOBYS key program of the Eagle Nebula (M16) 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. M16, home to the Pillars of Creation, is largely under the influence of the nearby NGC6611 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 NGC6611 on the entire M16 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 M16 with respect to the nebula, its surrounding environment, and the NGC6611 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 NGC6611 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 NGC6611 cluster, indicating a heating penetration depth of \sim 10 pc in each direction in 3 - 6 \times 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. |
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| 1 : | Astrophysique Interactions Multi-échelles (AIM) |
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CNRS : UMR7158 – INSU – Université Paris VII - Paris Diderot – CEA : DSM/IRFU |
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| 2 : | Laboratoire AIM (AIM) |
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CEA – Université Paris VII - Paris Diderot |
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| 3 : | Institut de Recherches sur les lois Fondamentales de l'Univers (ex DAPNIA) (IRFU) |
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CEA : DSM/IRFU |
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| 4 : | Engineering Department |
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University of Cambridge |
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| 5 : | Observatoire aquitain des sciences de l'univers (OASU) |
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CNRS : UMS2567 – INSU – Université Sciences et Technologies - Bordeaux I |
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| 6 : | Université Sciences et Technologies - Bordeaux 1 |
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Université Sciences et Technologies - Bordeaux I |
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| 7 : | Laboratoire d'Astrophysique de Bordeaux (LAB) |
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CNRS : UMR5804 – INSU – Université Sciences et Technologies - Bordeaux I |
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| 8 : | Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux (L3AB) |
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CNRS : UMR5804 – INSU – Université Sciences et Technologies - Bordeaux I |
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| 9 : | Laboratory for Atmospheric and Space Physics |
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University of Colorado |
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| 10 : | National Research Council of Canada, Herzberg Institute of Astrophysics |
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Herzberg Institute of Astrophysics |
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| 11 : | Centre d'étude spatiale des rayonnements (CESR) |
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CNRS : UMR5187 – Observatoire Midi-Pyrénées – INSU – Université Paul Sabatier [UPS] - Toulouse III |
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| 12 : | Institut d'astrophysique spatiale (IAS) |
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CNRS : UMR8617 – INSU – Université Paris XI - Paris Sud |
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| 13 : | National Astronomical Observatories |
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Chinese Academy of Sciences |
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| 14 : | Interplanetary Space Physics Institute (IFSI) (IFSI-INAF) |
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Interplanetary Space Physics Institute |
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| 15 : | Centre de Recherche Astrophysique de Lyon (CRAL) |
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CNRS : UMR5574 – INSU – Université Claude Bernard - Lyon I – École Normale Supérieure - Lyon |
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| 16 : | European Southern Observatory (ESO) |
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ESO |
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| FORMATION STELLAIRE 2012 |
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| Domaine | : | Physique/Astrophysique/Astrophysique stellaire et solaire Planète et Univers/Astrophysique/Astrophysique stellaire et solaire |
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| Lien vers le texte intégral : |
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| http://fr.arXiv.org/abs/1204.6317 |
| hal-00702330, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00702330 | |
| oai:hal.archives-ouvertes.fr:hal-00702330 | |
| Contributeur : Marie-Paule Pomies | |
| Soumis le : Mercredi 30 Mai 2012, 08:21:48 | |
| Dernière modification le : Jeudi 12 Juillet 2012, 10:18:07 | |
