| DOI | Trouver le DOI : https://doi.org/10.1051/0004-6361/201117934 |
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| Auteur | Rechercher : Sadavoy, S. I.1; Rechercher : Di Francesco, J.1; Rechercher : André, Ph.; Rechercher : Pezzuto, S.; Rechercher : Bernard, J.-P.; Rechercher : Bontemps, S.; Rechercher : Bressert, E.; Rechercher : Chitsazzadeh, S.1; Rechercher : Fallscheer, C.1; Rechercher : Hennemann, M.; Rechercher : Hill, T.; Rechercher : Martin, P.; Rechercher : Motte, F.; Rechercher : Nguyn Lu’o’ng, Q.; Rechercher : Peretto, N.; Rechercher : Reid, M.; Rechercher : Schneider, N.; Rechercher : Testi, L.; Rechercher : White, G. J.; Rechercher : Wilson, C. |
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| Affiliation | - Conseil national de recherches du Canada. Institut Herzberg d'astrophysique du CNRC
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| Format | Texte, Article |
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| Sujet | stars; formation; dust; extinction; Perseus B1-E |
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| Résumé | We present continuum observations of the Perseus B1-E region from the Herschel Gould Belt Survey. These Herschel data reveal a loose grouping of substructures at 160−500 μm not seen in previous submillimetre observations. We measure temperature and column density from these data and select the nine densest and coolest substructures for follow-up spectral line observations with the Green Bank Telescope. We find that the B1-E clump has a mass of ~100 M⊙ and appears to be gravitationally bound. Furthermore, of the nine substructures examined here, one substructure (B1-E2) appears to be itself bound. The substructures are typically less than a Jeans length from their nearest neighbour and thus, may interact on a timescale of ~1 Myr. We propose that B1-E may be forming a first generation of dense cores, which could provide important constraints on the initial conditions of prestellar core formation. Our results suggest that B1-E may be influenced by a strong, localized magnetic field, but further observations are still required. |
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| Date de publication | 2012-03-15 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 21268983 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | d769ef23-911d-4982-b33d-10d196ce74b2 |
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| Enregistrement créé | 2013-11-28 |
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| Enregistrement modifié | 2020-04-21 |
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