1304.6794 (Hajime Susa)
Hajime Susa
We investigate the final mass of the first stars by simulating the gravitational collapse of a primordial gas cloud until \sim 0.1 Myrs after the formation of the primary proto-first-star. According to our numerical experiment using the radiative hydrodynamics calculations, we find that the mass accretions onto the proto-first-stars are significantly suppressed by the radiative feedback from themselves. As a result, we find five stars formed in this particular simulation, and that the final mass of the stars are less than 60Msun, including a star of 4.4Msun. Although it is larger than 0.8 Msun, presence of such a low mass star infer the existence of first stars in the local universe.
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http://arxiv.org/abs/1304.6794
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