Massive disc galaxies in cosmological hydrodynamical simulations are too dark matter-dominated

@article{Marasco2020MassiveDG,
  title={Massive disc galaxies in cosmological hydrodynamical simulations are too dark matter-dominated},
  author={A. Marasco and L. Posti and K. Oman and B. Famaey and G. Cresci and F. Fraternali},
  journal={arXiv: Astrophysics of Galaxies},
  year={2020}
}
We investigate the disc-halo connection in massive (Mstar/Msun>5e10) disc galaxies from the cosmological hydrodynamical simulations EAGLE and IllustrisTNG, and compare it with that inferred from the study of HI rotation curves in nearby massive spirals from the Spitzer Photometry and Accurate Rotation Curves (SPARC) dataset. We find that discrepancies between the the simulated and observed discs arise both on global and on local scales. Globally, the simulated discs inhabit halos that are a… Expand

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