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The Herschel first look at protostars in the Aquila Rift
Bontemps S., Andre P., Konyves V., Men'shchikov A., Schneider N., Maury A., Peretto N., Arzoumanian D., Attard M., Motte F. et al
Astronomy and Astrophysics 518 (2010) L85 - http://hal.archives-ouvertes.fr/hal-00523476
Article in peer-reviewed journal
Sciences of the Universe/Astrophysics/Solar and Stellar Astrophysics
Physics/Astrophysics/Solar and Stellar Astrophysics
The Herschel first look at protostars in the Aquila Rift
S. Bontemps 1, 2, 3, 4, Ph. Andre 5, V. Konyves, A. Men'shchikov 5, N. Schneider 5, A. Maury 6, N. Peretto 5, D. Arzoumanian, M. Attard, F. Motte 5, 7, V. Minier 5, 7, P. Didelon 5, P. Saraceno 8, A. Abergel 9, J. -P. Baluteau 10, J. -Ph. Bernard 11, L. Cambresy, P. Cox, J. Di Francesco 12, A. M. Di Giorgo, M. Griffin 13, P. Hargrave, M. Huang 14, J. Kirk 15, J. Li 16, P. Martin 17, B. Merin, S. Molinari 8, G. Olofsson 18, S. Pezzuto 8, T. Prusti, H. Roussel 19, D. Russeil 10, M. Sauvage 5, B. Sibthorpe 20, L. Spinoglio 21, L. Testi 6, R. Vavrek, D. Ward-Thompson 13, G. White 22, C. Wilson 23, A. Woodcraft 20, A. Zavagno 10, 24
1:  Laboratoire d'Astrophysique de Bordeaux (LAB)
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CNRS : UMR5804 – INSU – Université Sciences et Technologies - Bordeaux I
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2:  Observatoire aquitain des sciences de l'univers (OASU)
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3:  Université Sciences et Technologies - Bordeaux 1
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Université Sciences et Technologies - Bordeaux I
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4:  Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux (L3AB)
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5:  Astrophysique Interactions Multi-échelles (AIM - UMR 7158)
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CNRS : UMR7158 – INSU – Université Paris VII - Paris Diderot – CEA : DSM/IRFU
AIM - UMR 7158, Service d'astrophysique, CEA/Saclay, Orme des Merisiers F-91191 GIF SUR YVETTE CEDEX
France
6:  European Southern Observatory (ESO)
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7:  Institut de Recherches sur les lois Fondamentales de l'Univers (ex DAPNIA) (IRFU)
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8:  Interplanetary Space Physics Institute (IFSI) (IFSI-INAF)
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11:  Centre d'étude spatiale des rayonnements (CESR)
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12:  National Research Council of Canada, Herzberg Institute of Astrophysics
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18:  Stockholm University
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23:  University of Exeter
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24:  Observatoire Astronomique de Marseille Provence (OAMP)
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France
As part of the science demonstration phase of the Herschel mission of the Gould Belt Key Program, the Aquila Rift molecular complex has been observed. The complete ~ 3.3deg x 3.3deg imaging with SPIRE 250/350/500 micron and PACS 70/160 micron allows a deep investigation of embedded protostellar phases, probing of the dust emission from warm inner regions at 70 and 160 micron to the bulk of the cold envelopes between 250 and 500 micron. We used a systematic detection technique operating simultaneously on all Herschel bands to build a sample of protostars. Spectral energy distributions are derived to measure luminosities and envelope masses, and to place the protostars in an M_env - L_bol evolutionary diagram. The spatial distribution of protostars indicates three star-forming sites in Aquila, with W40/Sh2-64 HII region by far the richest. Most of the detected protostars are newly discovered. For a reduced area around the Serpens South cluster, we could compare the Herschel census of protostars with Spitzer results. The Herschel protostars are younger than in Spitzer with 7 Class 0 YSOs newly revealed by Herschel. For the entire Aquila field, we find a total of ~ 45-60 Class 0 YSOs discovered by Herschel. This confirms the global statistics of several hundred Class~0 YSOs that should be found in the whole Gould Belt survey.
English
2010

Astronomy and Astrophysics (Astron. Astrophys.)
Publisher EDP Sciences
ISSN 0004-6361 (eISSN : 1432-0756)
international
2010
518
L85

Fulltext link: 
http://fr.arXiv.org/abs/1005.2634