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Probing the formation mechanism of prestellar cores and the origin of the imf: first results from the herschel gould belt survey

Published online by Cambridge University Press:  25 November 2011

M. Röllig ,
R. Simon ,
V. Ossenkopf ,
J. Stutzki ,
Ph. André ,
A. Men’shchikov ,
V. Könyves  and
D. Arzoumanian
Ph. André
Affiliation:
Laboratoire AIM, CEA Saclay, IRFU/Service d’Astrophysique, 91191 Gif-sur-Yvette, France. e-mail: [email protected] ;
A. Men’shchikov
Affiliation:
Laboratoire AIM, CEA Saclay, IRFU/Service d’Astrophysique, 91191 Gif-sur-Yvette, France. e-mail: [email protected] ;
V. Könyves
Affiliation:
Laboratoire AIM, CEA Saclay, IRFU/Service d’Astrophysique, 91191 Gif-sur-Yvette, France. e-mail: [email protected] ;
D. Arzoumanian
Affiliation:
Laboratoire AIM, CEA Saclay, IRFU/Service d’Astrophysique, 91191 Gif-sur-Yvette, France. e-mail: [email protected] ;
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Abstract

We summarize the first results from the Herschel Gould Belt survey, one of the largest key projects with the Herschel Space Observatory. Our early findings confirm the existence of a close relationship between the prestellar core mass function (CMF) the stellar initial mass function (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.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 52: Conditions and Impact of Star Formation , 2011 , pp. 167 - 172
Copyright
© EAS, EDP Sciences 2011

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