Date : 5/17 (Wed) [15:00 - 17:00] @ F313
Speaker: Prof. Kazuyuki Omukai (Hohoku University)
Title : Supermassive star formation in the early universe
Abstract: Discovery of SMBHs in the universe with age less than 1Gyrs renewed our interest in supermassive stars (>10^5Msun) as possible progenitors of the seed BHs. Among possible formation scenarios, so-called the direct collapse scenario attracts most attention these days. Here I discuss necessary conditions for their formation, i.e., protostellar collapse without fragmentation, accretion growth to the supermassive range, and the final collapse to BHs.


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