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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 559360.0, MPI für Astronomie / Publikationen_mpia
Initial highlights of the HOBYS key program, the Herschel imaging survey of OB young stellar objects
Authors:Motte, F.; Zavagno, A.; Bontemps, S.; Schneider, N.; Hennemann, M.; di Francesco, J.; André, P.; Saraceno, P.; Griffin, M.; Marston, A.; Ward-Thompson, D.; White, G.; Minier, V.; Men'shchikov, A.; Hill, T.; Abergel, A.; Anderson, L. D.; Aussel, H.; Balog, Z.; Baluteau, J. P.; Bernard, J. P.; Cox, P.; Csengeri, T.; Deharveng, L.; Didelon, P.; di Giorgio, A. M.; Hargrave, P.; Huang, M.; Kirk, J.; Leeks, S.; Li, J. Z.; Martin, P.; Molinari, S.; Nguyen-Luong, Q.; Olofsson, G.; Persi, P.; Peretto, N.; Pezzuto, S.; Roussel, H.; Russeil, D.; Sadavoy, S.; Sauvage, M.; Sibthorpe, B.; Spinoglio, L.; Testi, L.; Teyssier, D.; Vavrek, R.; Wilson, C. D.; Woodcraft, A.
Date of Publication (YYYY-MM-DD):2010
Journal Abbrev.:Astronomy and Astrophysics
Start Page:id.L77
Audience:Not Specified
Abstract / Description:We present the initial highlights of the HOBYS key program, which are based on Herschel images of the Rosette molecular complex and maps of the RCW120 H ii region. Using both SPIRE at 250/350/500 μm and PACS at 70/160 μm or 100/160 μm, the HOBYS survey provides an unbiased and complete census of intermediate- to high-mass young stellar objects, some of which are not detected by Spitzer. Key core properties, such as bolometric luminosity and mass (as derived from spectral energy distributions), are used to constrain their evolutionary stages. We identify a handful of high-mass prestellar cores and show that their lifetimes could be shorter in the Rosette molecular complex than in nearby low-mass star-forming regions. We also quantify the impact of expanding H ii regions on the star formation process acting in both Rosette and RCW 120. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.Figures 4 and 5 are only available in electronic form at <A href=""></A>
Free Keywords:stars: formation; stars: massive; telescopes; stars: protostars; H ii regions; dust; extinction
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
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