Interacting galaxies in the IllustrisTNG simulations – V. Comparing the influence of star-forming versus passive companions

• Published in: Monthly notices of the Royal Astronomical Society Vol. 522; no. 4
• Main Authors: Brown, Westley, Patton, David R., Ellison, Sara L., Faria, Lawrence
• Format: Journal Article
• Language: English
• Published: United States Oxford University Press 04.05.2023
• Subjects: Astronomy & Astrophysics

ABSTRACT We study interacting galaxy pairs in the TNG100-1 and TNG300-1 cosmological simulations using previously generated closest companion samples. We study the specific star-formation rates (sSFRs) of massive ($10^{10} \, {\rm M}_{\odot } \lt M_* \lt 10^{12} \, {\rm M}_{\odot }$ ) galaxies at z...