| DOI | Trouver le DOI : https://doi.org/10.1088/0004-6256/141/4/139 |
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| Auteur | Rechercher : Aspin, Colin; Rechercher : Beck, Tracy L.; Rechercher : Davis, Chris J.; Rechercher : Froebrich, Dirk; Rechercher : Khanzadyan, Tigran; Rechercher : Magakian, Tigran Yu.; Rechercher : Moriarty-Schieven, Gerald H.1; Rechercher : Movsessian, Tigran A.; Rechercher : Mitchison, Sharon; Rechercher : Nikogossian, Elena G.; Rechercher : Pyo, Tae-Soo; Rechercher : Smith, Michael D. |
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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 | ISM: clouds; ISM: jets and outflows; stars: formation |
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| Résumé | We present a 1.1 mm map of the Braid Nebula star formation region in Cygnus OB7 taken using Bolocam on the Caltech Submillimeter Observatory. Within the 1 deg(2) covered by the map, we have detected 55 cold dust clumps all of which are new detections. A number of these clumps are coincident with IRAS point sources although the majority are not. Some of the previously studied optical/near-IR sources are detected at 1.1 mm. We estimate total dust/gas masses for the 55 clumps together with peak visual extinctions. We conclude that over the whole region, approximately 20% of the clumps are associated with IRAS sources suggesting that these are protostellar objects. The remaining 80% are classed as starless clumps. In addition, both FU Orionis (FUor) like objects in the field, the Braid Star and HH 381 IRS, are associated with strong millimeter emission. This implies that FUor eruptions can occur at very early stages of pre-main-sequence life. Finally, we determine that the cumulative clump mass function for the region is very similar to that found in both the Perseus and rho Ophiuchus star-forming regions. |
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| Date de publication | 2011-03-11 |
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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 | 19727321 |
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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 | c3c56a0e-e983-4db7-be8f-8aa021530c20 |
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| Enregistrement créé | 2012-03-27 |
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| Enregistrement modifié | 2020-04-21 |
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