Variable accretion rates and fluffy first stars

@article{Smith2011VariableAR,
  title={Variable accretion rates and fluffy first stars},
  author={Rowan J. Smith and T. Hosokawa and K. Omukai and S. Glover and R. Klessen},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2011},
  volume={424},
  pages={457-463}
}
We combine the output of hydrodynamical simulations of Population III star cluster formation with stellar evolution models, and calculate the evolution of protostars experiencing variable mass accretion rates due to interactions within a massive disc. We find that the primordial protostars are extended ‘fluffy’ objects for the bulk of their pre-main-sequence lifetimes. Accretion luminosity feedback from such objects is high, but, as shown in previous work, it has a minimal effect on the star… Expand

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