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Radiative, magnetic and numerical feedbacks on small-scale fragmentation

Published online by Cambridge University Press:  27 April 2011

Benoît Commerçon ,
Patrick Hennebelle ,
Edouard Audit ,
Gilles Chabrier  and
Romain Teyssier
Benoît Commerçon
Affiliation:
Max PLanck Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, Germany email: benoit@mpia-hd.mpg.de
Patrick Hennebelle
Affiliation:
Laboratoire de radioastronomie, École Normale Supérieure et Observatoire de Paris, 24 rue Lhomond, F-75231 Paris Cedex 05, France
Edouard Audit
Affiliation:
Laboratoire AIM, CEA/DSM - CNRS - Université Paris Diderot, IRFU/SAp, F-91191 Gif sur Yvette, France
Gilles Chabrier
Affiliation:
École Normale Supérieure de Lyon, Centre de recherche Astrophysique de Lyon, 46 allée d'Italie, F-69364 Lyon Cedex 07, France
Romain Teyssier
Affiliation:
Laboratoire AIM, CEA/DSM - CNRS - Université Paris Diderot, IRFU/SAp, F-91191 Gif sur Yvette, France Universität Zürich, Institute für Theoretische Physik, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
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Abstract

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Radiative feedback and magnetic field are understood to have a strong impact on the protostellar collapse. We present high resolution numerical calculations of the collapse of a 1 M⊙ dense core in solid body rotation, including both radiative transfer and magnetic field. Using typical parameters for low-mass cores, we study thoroughly the effect of radiative transfer and magnetic field on the first core formation and fragmentation. We show that including the two aforementioned physical processes does not correspond to the simple picture of adding them separately. The interplay between the two is extremely strong, via the magnetic braking and the radiation from the accretion shock.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S270: Computational Star Formation , May 2010 , pp. 227 - 230
Copyright
Copyright © International Astronomical Union 2011

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