Evolution of the grain size distribution in Milky Way-like galaxies in post-processed IllustrisTNG simulations

  title={Evolution of the grain size distribution in Milky Way-like galaxies in post-processed IllustrisTNG simulations},
  author={Yu-Hsiu Huang and Hiroyuki Hirashita and Yung-Hsin Hsu and Yen-Ting Lin and Dylan Nelson and Andrew P Cooper},
  journal={Monthly Notices of the Royal Astronomical Society},
We model dust evolution in Milky Way-like galaxies by post-processing the IllustrisTNG cosmological hydrodynamical simulations in order to predict dust-to-gas ratios and grain size distributions. We treat grain-size-dependent dust growth and destruction processes using a 64-bin discrete grain size evolution model without spatially resolving each galaxy. Our model broadly reproduces the observed dust--metallicity scaling relation in nearby galaxies. The grain size distribution is dominated by… 
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