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The First Stars and Galaxies: Challenges for the Next Decade Participants
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Talk
Title: Low-Metallicity Star Formation: the Pop III-II Transition Author(s): Kazu Omukai Abstract: I study the evolution of low-metallicity star-forming clouds up to the formation of protostars by way of radiation hydrodynamics with spherical symmetry. From the obtained thermal evolution, I then discuss their fragmentation mass scales. From the structure of the envelope at the time of protostar formation, I derive the protostellar accretion rate and calculate the evolution of protostars in the main accretion phase. Finally, I discuss the stellar feedback and evaluate the upper limit on the stellar mass by the stellar feedback.
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