Initial highlights of the HOBYS key program, the Herschel imaging survey of OB young stellar objects

F. Motte; A. Zavagno; S. Bontemps; N. Schneider; M. Hennemann; J. Di Francesco; Ph. André; P. Saraceno; M. Griffin; A. Marston; D. Ward-Thompson; G. White; V. Minier; A. Men'shchikov; T. Hill; A. Abergel; L. D. Anderson; H. Aussel; Z. Balog; J.-P. Baluteau; J.-Ph. Bernard; P. Cox; T. Csengeri; L. Deharveng; P. Didelon; A.-M. Di Giorgio; P. Hargrave; M. Huang; J. Kirk; S. Leeks; J. Z. Li; P. Martin; S. Molinari; Q. Nguyen-Luong; G. Olofsson; P. Persi; N. Peretto; S. Pezzuto; H. Roussel; D. Russeil; S. Sadavoy; M. Sauvage; B. Sibthorpe; L. Spinoglio; L. Testi; D. Teyssier; R. Vavrek; C. D. Wilson; A. Woodcraft

HAL: hal-00526246, version 1

ADS Bibliographic id: 2010A&A...518L..77M

DOI: 10.1051/0004-6361/201014690

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Astronomy and Astrophysics 518 (2010) L77

Initial highlights of the HOBYS key program, the Herschel imaging survey of OB young stellar objects

F. Motte ^1, 2, A. Zavagno ^3, 4, S. Bontemps ^{5, 6, 7, 8}, N. Schneider ⁹, M. Hennemann ⁹, J. Di Francesco ¹⁰, Ph. André ⁹, P. Saraceno ¹¹, M. Griffin ¹², A. Marston, D. Ward-Thompson ¹², G. White ¹³, V. Minier ^1, 2, A. Men'shchikov ⁹, T. Hill ⁹, A. Abergel ¹⁴, L. D. Anderson ³, H. Aussel ¹⁵, Z. Balog ¹⁶, J.-P. Baluteau, J.-Ph. Bernard ¹⁷, P. Cox, T. Csengeri ⁹, L. Deharveng ^3, 4, P. Didelon ⁹, A.-M. Di Giorgio ¹¹, P. Hargrave, M. Huang ¹⁸, J. Kirk ¹⁹, S. Leeks ¹³, J. Z. Li ¹⁸, P. Martin ²⁰, S. Molinari ¹¹, Q. Nguyen-Luong ⁹, G. Olofsson ²¹, P. Persi ¹¹, N. Peretto ⁹, S. Pezzuto ¹¹, H. Roussel ²², D. Russeil ³, S. Sadavoy ¹⁰, M. Sauvage ⁹, B. Sibthorpe ²³, L. Spinoglio ²⁴, L. Testi ²⁵, D. Teyssier ²⁶, R. Vavrek, C. D. Wilson, A. Woodcraft ²³

(2010-07)

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 http://www.aanda.org

1:	Laboratoire AIM (AIM)

	CEA – Université Paris VII - Paris Diderot

2:	Institut de Recherches sur les lois Fondamentales de l'Univers (ex DAPNIA) (IRFU)

	CEA : DSM/IRFU

3:	Laboratoire d'Astrophysique de Marseille (LAM)

	CNRS : UMR6110 – INSU – Université de Provence - Aix-Marseille I

4:	Observatoire Astronomique de Marseille Provence (OAMP)

	INSU – Université de Provence - Aix-Marseille I – CNRS : UMR6110

5:	Laboratoire d'Astrophysique de Bordeaux (LAB)

	CNRS : UMR5804 – INSU – Université Sciences et Technologies - Bordeaux I

6:	Observatoire aquitain des sciences de l'univers (OASU)

	CNRS : UMS2567 – INSU – Université Sciences et Technologies - Bordeaux I

7:	Université Sciences et Technologies - Bordeaux 1

	Université Sciences et Technologies - Bordeaux I

8:	Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux (L3AB)

	CNRS : UMR5804 – INSU – Université Sciences et Technologies - Bordeaux I

9:	Astrophysique Interactions Multi-échelles (AIM)

	CNRS : UMR7158 – INSU – Université Paris VII - Paris Diderot – CEA : DSM/IRFU

10:	National Research Council of Canada, Herzberg Institute of Astrophysics

	Herzberg Institute of Astrophysics

11:	Interplanetary Space Physics Institute (IFSI) (IFSI-INAF)

	Interplanetary Space Physics Institute

12:	School of Physics & Astronomy

	Cardiff University

13:	Rutherford Appleton Laboratory - Didcot (RAL)

	Science & Technologie Facilities Council

14:	Institut d'astrophysique spatiale (IAS)

	CNRS : UMR8617 – INSU – Université Paris XI - Paris Sud

15:	Autres

	AUTRE

16:	Max Planck Institut für Astronomie (MPIA)

	Max Planck Institut für Astronomie

17:	Centre d'étude spatiale des rayonnements (CESR)

	CNRS : UMR5187 – Observatoire Midi-Pyrénées – INSU – Université Paul Sabatier [UPS] - Toulouse III

18:	National Astronomical Observatories

	Chinese Academy of Sciences

19:	School of Physis & Astronomy

	Cardiff University

20:	CITA

	University of Toronto

21:	Stockholm University

	Stockholm University

22:	Institut d'Astrophysique de Paris (IAP)

	CNRS : UMR7095 – INSU – Université Pierre et Marie Curie [UPMC] - Paris VI

23:	Royal Observatory Edinburgh

	Royal Observatory Edinburgh

24:	Antarctic Research a European Network for Astrophysics (ARENA)

	CEA

25:	European Southern Observatory (ESO)

	ESO

26:	Herschel Science Center

	ESA

Subject

Sciences of the Universe/Astrophysics/Solar and Stellar Astrophysics

Physics/Astrophysics/Solar and Stellar Astrophysics

Keyword(s): stars: formation – stars: massive – telescopes – stars: protostars – H ii regions – dust – extinction


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From: Marie-Paule Pomies <>
Submitted on: Thursday, 14 October 2010 09:35:15
Updated on: Thursday, 14 October 2010 09:35:15