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The Aquila prestellar core population revealed by Herschel

Könyves, V., André, Ph., Men'shchikov, A., Schneider, N., Arzoumanian, D., Bontemps, S., Attard, M., Motte, F., Didelon, P., Maury, A., Abergel, A., Ali, B., Baluteau, J.-P., Bernard, J.-Ph., Cambrésy, L., Cox, P., Di Francesco, J., di Giorgio, A. M., Griffin, Matthew Joseph, Hargrave, Peter Charles, Huang, M., Kirk, Jason Matthew, Li, J. Z., Martin, P., Minier, V., Molinari, S., Olofsson, G., Pezzuto, S., Russeil, D., Roussel, H., Saraceno, P., Sauvage, M., Sibthorpe, B., Spinoglio, L., Testi, L., Ward-Thompson, Derek, White, G., Wilson, C. D., Woodcraft, A. and Zavagno, A. 2010. The Aquila prestellar core population revealed by Herschel. Astronomy and Astrophysics 518 , L106. 10.1051/0004-6361/201014689

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Abstract

The origin and possible universality of the stellar initial mass function (IMF) is a major issue in astrophysics. One of the main objectives of the Herschel Gould Belt Survey is to clarify the link between the prestellar core mass function (CMF) and the IMF. We present and discuss the core mass function derived from Herschel data for the large population of prestellar cores discovered with SPIRE and PACS in the Aquila rift cloud complex at d ~ 260 pc. We detect a total of 541 starless cores in the entire ~11 deg2 area of the field imaged at 70–500 μm with SPIRE/PACS. Most of these cores appear to be gravitationally bound, and thus prestellar in nature. Our Herschel results confirm that the shape of the prestellar CMF resembles the stellar IMF, with much higher quality statistics than earlier submillimeter continuum ground-based surveys.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Uncontrolled Keywords: ISM: individual objects: Aquila rift complex ; stars: formation
Publisher: EDP Sciences
ISSN: 0004-6361
Last Modified: 03 Dec 2017 00:50
URI: http://orca-mwe.cf.ac.uk/id/eprint/7309

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