Detection of the Mass-dependent Dual Type Transition of Galaxy Spins in IllustrisTNG Simulations

  title={Detection of the Mass-dependent Dual Type Transition of Galaxy Spins in IllustrisTNG Simulations},
  author={Jounghun Lee and Jun-Sung Moon and Suho Ryu and Suk-Jin Yoon},
  journal={The Astrophysical Journal},
A numerical detection of the mass-dependent spin transition of the galaxies is presented. Analyzing a sample of the galaxies with stellar masses in the range of 109 < (M ⋆/M ⊙) ≤ 1011 from the IllustrisTNG300-1 simulations, we explore the alignment tendency between the galaxy baryon spins and the three eigenvectors of the linearly reconstructed tidal field as a function of M ⋆ and its evolution in the redshift range of 0 ≤ z ≤ 1.5. Detecting a significant signal of the occurrence of the mass… 
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