Dark-matter-deficient galaxies in hydrodynamical simulations

  title={Dark-matter-deficient galaxies in hydrodynamical simulations},
  author={Ying-Jie Jing and Chunxiang Wang and Ran Li and Shihong Liao and Jie-Shuang Wang and Qi Guo and Liang Gao},
  journal={Monthly Notices of the Royal Astronomical Society},
Low-mass galaxies are expected to be dark-matter-dominated even within their central regions. Recently, two observations reported two dwarf galaxies in a group environment with very little dark matter in their central regions. We explore the population and origins of dark-matter-deficient galaxies (DMDGs) using two state-of-the-art hydrodynamical simulations, the EAGLE and Illustris projects. For all satellite galaxies with 109 < M* < 1010 M$\odot$ in groups with M200 > 1013 M$\odot$, we find… 

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