Chemical pre-processing of cluster galaxies over the past 10 billion years in the IllustrisTNG simulations

  title={Chemical pre-processing of cluster galaxies over the past 10 billion years in the IllustrisTNG simulations},
  author={Anshu Gupta and Tiantian Yuan and Paul Torrey and Mark Vogelsberger and Davide Martizzi and K. V. Tran and Lisa J. Kewley and Federico Marinacci and Dylan Nelson and Annalisa Pillepich and Lars Hernquist and Shy Genel and Volker Springel},
  journal={Monthly Notices of the Royal Astronomical Society},
We use IllustrisTNG simulations to investigate the mass-metallicity relation (MZR) evolution of star-forming cluster galaxies as a function of the formation history of galaxy clusters. The simulations predict enhancement in the gas-phase metallicities of star-forming cluster galaxies (10^9<M_*<10^10 M_sun) at z<1.0 compared to field galaxies, consistent with observations. We find that the metallicity enhancement of cluster galaxies appears prior to their infall into the central cluster… 

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