English

The Aquila prestellar core population revealed by Herschel

Solar and Stellar Astrophysics 2015-05-19 v1 Astrophysics of Galaxies

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 deg^2 area of the field imaged at 70-500 micron 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.

Keywords

Cite

@article{arxiv.1005.2981,
  title  = {The Aquila prestellar core population revealed by Herschel},
  author = {V. Könyves and Ph. André and A. Men'shchikov and N. Schneider and D. Arzoumanian and S. Bontemps and M. Attard and F. Motte and P. Didelon and A. Maury and A. Abergel and B. Ali and J. -P. Baluteau and J. -Ph. Bernard and L. Cambrésy and P. Cox and J. Di Francesco and A. M. di Giorgio and M. J. Griffin and P. Hargrave and M. Huang and J. Kirk and J. Z. Li and P. Martin and V. Minier and S. Molinari and G. Olofsson and S. Pezzuto and D. Russeil and H. Roussel and P. Saraceno and M. Sauvage and B. Sibthorpe and L. Spinoglio and L. Testi and D. Ward-Thompson and G. White and C. D. Wilson and A. Woodcraft and A. Zavagno},
  journal= {arXiv preprint arXiv:1005.2981},
  year   = {2015}
}