Compact groups of dwarf galaxies in TNG50: late hierarchical assembly and delayed stellar build-up in the low-mass regime

• Published in: Monthly notices of the Royal Astronomical Society Vol. 528; no. 4; pp. 5804 - 5824
• Main Authors: Flores-Freitas, Rodrigo, Trevisan, Marina, Mückler, Maitê, Mamon, Gary A, Schnorr-Müller, Allan, Bootz, Vitor
• Format: Journal Article
• Language: English
• Published: Oxford University Press 15.02.2024
• Subjects: galaxies: dwarf; galaxies: groups: general; galaxies: evolution; galaxies: interactions

ABSTRACT Compact groups of dwarf galaxies (CGDs) have been observed at low redshifts (z < 0.1) and are direct evidence of hierarchical assembly at low masses. To understand the formation of CGDs and the galaxy assembly in the low-mass regime, we search for analogues of compact (radius ≤100 kpc) g...