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The role of magnetic fields, dust, and radiation in star formation

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If you have a question about this talk, please contact Laurène Jouve .

Magnetic fields are an importunate necessity in the formulation of a theory of star formation. Not only do they play a crucial role in the fragmentation of molecular clouds and the subsequent contraction of prestellar cores, but they also significantly affect (and are affected by) the dynamics of dust grains and hence the emitted radiation. I will present results of the first radiative, 7-fluid, nonideal MHD star formation simulations to accurately track the evolution of a protostellar fragment over eleven orders of magnitude in density, from the early ambipolar-diffusion—initiated fragmentation phase, through the magnetically-supercritical dynamical collapse phase and the magnetic decoupling stage, all the way to the nonisothermal phase, including the formation and evolution of the hydrostatic core.

This talk is part of the DAMTP Astrophysics Seminars series.

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