The Open UniversitySkip to content
 

The Herschel first look at protostars in the Aquila rift

Bontemps, S.; André, Ph.; Könyves, V.; Men'shchikov, A.; Schneider, N.; Maury, A.; Peretto, N.; Arzoumanian, D.; Attard, M.; Motte, F.; Minier, V.; Didelon, P.; Saraceno, P.; Abergel, A.; Baluteau, J.-P.; Bernard, J.-Ph.; Cambrésy, L.; Cox, P.; Di Francesco, J.; Di Giorgo, A. M.; Griffin, M.; Hargrave, P.; Huang, M.; Kirk, J.; Li, J.; Martin, P.; Merín, B.; Molinari, S.; Olofsson, G.; Pezzuto, S.; Prusti, T.; Roussel, H.; Russeil, D.; Sauvage, M.; Sibthorpe, B.; Spinoglio, L.; Testi, L.; Vavrek, R.; Ward-Thompson, D.; White, G.; Wilson, C.; Woodcraft, A. and Zavagno, A. (2010). The Herschel first look at protostars in the Aquila rift. Astronomy & Astrophysics, 518, article no. L85.

Full text available as:
[img] PDF (Version of Record) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (1257Kb)
DOI (Digital Object Identifier) Link: http://dx.doi.org/10.1051/0004-6361/201014661
Google Scholar: Look up in Google Scholar

Abstract

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 ~3.3 × 3.3 imaging with SPIRE 250/350/500 μm and PACS 70/160 μm allows a deep investigation of embedded protostellar phases, probing of the dust emission from warm inner regions at 70 and 160 μm to the bulk of the cold envelopes between 250 and 500 μm. 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 MenvLbol 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.

Item Type: Journal Article
Copyright Holders: 2010 ESO
ISSN: 1432-0746
Extra Information: 5 pp.
Keywords: stellar formation; interstellar clouds
Academic Unit/Department: Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 25288
Depositing User: Mairi Harding
Date Deposited: 09 Dec 2010 16:16
Last Modified: 23 Jul 2014 15:10
URI: http://oro.open.ac.uk/id/eprint/25288
Share this page:

Actions (login may be required)

View Item
Report issue / request change

Policies | Disclaimer

© The Open University   + 44 (0)870 333 4340   general-enquiries@open.ac.uk