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Origin of the prestellar core mass function and link to the IMF – Herschel first results

Published online by Cambridge University Press:  27 April 2011

Ph. André ,
A. Men'shchikov ,
V. Könyves  and
D. Arzoumanian
Ph. André
Affiliation:
Laboratoire AIM, CEA Saclay, IRFU/Service d'Astrophysique, F-91191, Gif-sur-Yvette, France email: pandre@cea.fr
A. Men'shchikov
Affiliation:
Laboratoire AIM, CEA Saclay, IRFU/Service d'Astrophysique, F-91191, Gif-sur-Yvette, France email: pandre@cea.fr
V. Könyves
Affiliation:
Laboratoire AIM, CEA Saclay, IRFU/Service d'Astrophysique, F-91191, Gif-sur-Yvette, France email: pandre@cea.fr
D. Arzoumanian
Affiliation:
Laboratoire AIM, CEA Saclay, IRFU/Service d'Astrophysique, F-91191, Gif-sur-Yvette, France email: pandre@cea.fr
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Abstract

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We briefly review ground-based (sub)millimeter dust continuum observations of the prestellar core mass function (CMF) and its connection to the stellar initial mass function (IMF). We also summarize the first results obtained on this topic from the Herschel Gould Belt survey, one of the largest key projects with the Herschel Space Observatory. Our early findings with Herschel confirm the existence of a close relationship between the CMF and the IMF. Furthermore, they suggest a scenario according to which the formation of prestellar cores occurs in two main steps: 1) complex networks of long, thin filaments form first, probably as a result of interstellar MHD turbulence; 2) the densest filaments then fragment and develop prestellar cores via gravitational instability.

Keywords

stars: formation – ISM: clouds – ISM: structure – submillimeter
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S270: Computational Star Formation , May 2010 , pp. 255 - 262
Copyright
Copyright © International Astronomical Union 2011

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