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Formation Stellaire Aux Échelles Des Galaxies

Samuel Boissier 1 
1 Physique Des Galaxies
LAM - Laboratoire d'Astrophysique de Marseille
Abstract : Star Formation is at the very core of the evolution of galaxies. From their gas reservoir (filled by infall or fusions), stars form at the "Star Formation Rate" (SFR), with an enormous impact on many aspects of the evolution of galaxies. This HDR presents first the formalism concerning star formation (SFR, IMF), some theoretical suggestions on physical processes that may affect star formation on various galactic scales, and the methods used to determine the SFR from observations. A large part is dedicated to the "Star Formation Laws" (e.g. Schmidt law) on various scales (local, radial, and global law). Finally, the last part concerns the largest scales (evolution of the "cosmic" SFR and effect of the environment).
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Submitted on : Wednesday, December 5, 2012 - 9:51:33 AM
Last modification on : Thursday, October 21, 2021 - 3:59:39 AM
Long-term archiving on: : Wednesday, March 6, 2013 - 5:00:12 PM


  • HAL Id : tel-00761183, version 1



Samuel Boissier. Formation Stellaire Aux Échelles Des Galaxies. Cosmologie et astrophysique extra-galactique [astro-ph.CO]. Aix-Marseille Université, 2012. ⟨tel-00761183⟩



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