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Disk formation and fragmentation during collapse of prestellar clouds

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If you have a question about this talk, please contact Sijme-Jan Paardekooper.

It is well established that stars form through the collapse of dense cores within molecular clouds. However, the conditions under which this happens are still the subject of intense researches. Particularly debatted is the question of the disk formation. While in purely hydrodynamical cases, massive disks tend to form early and fragment quickly, the situation appears to be more complex in the magnetized cases. Indeed, various teams have concluded that even for modest values of the magnetic intensity, magnetic braking is sufficiently efficient to prevent disk formation. In the seminar, I will first give an introduction to this problem and then review the various solutions, which have been proposed and are still under investigation.

This talk is part of the DAMTP Astrophysics Seminars series.

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