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Radiative, magnetic and numerical feedbacks on small-scale fragmentation

Commerçon, Benoît ; Hennebelle, Patrick ; Audit, Edouard ; Chabrier, Gilles ; Teyssier, Romain

In: Proceedings of the International Astronomical Union, 2010, vol. 6, no. S270, p. 227-230

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    Titre
    • Radiative, magnetic and numerical feedbacks on small-scale fragmentation
    Auteur
    • Commerçon, Benoît. Max PLanck Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, Germany email: benoit@mpia-hd.mpg.de
    • Hennebelle, Patrick. Laboratoire de radioastronomie, École Normale Supérieure et Observatoire de Paris, 24 rue Lhomond, F-75231 Paris Cedex 05, France
    • Audit, Edouard. Laboratoire AIM, CEA/DSM - CNRS - Université Paris Diderot, IRFU/SAp, F-91191 Gif sur Yvette, France
    • Chabrier, Gilles. École Normale Supérieure de Lyon, Centre de recherche Astrophysique de Lyon, 46 allée d'Italie, F-69364 Lyon Cedex 07, France
    • Teyssier, Romain. Laboratoire AIM, CEA/DSM - CNRS - Université Paris Diderot, IRFU/SAp, F-91191 Gif sur Yvette, France
    Type de document
    • Postprint
    Langue
    • Inglese
    Publié dans
    • Proceedings of the International Astronomical Union, 2010, vol. 6, no. S270, p. 227-230. Cambridge University Press
    Autre version électronique
    Classification
    • Astronomie, Astrophysique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:299599
    Summary
    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