The fate of the Antennae galaxies
Natalia Lah\'en, Peter H. Johansson, Antti Rantala, Thorsten Naab,, Matteo Frigo

TL;DR
This study uses high-resolution simulations to explore the evolution of the Antennae galaxies, reproducing observed features, metallicity distributions, and predicting the properties of the merger remnant as an early-type galaxy.
Contribution
It provides the first detailed metallicity map of the Antennae and links the merger remnant's properties to observed early-type galaxies through simulations and radiative transfer modeling.
Findings
Simulated Antennae reproduces observed morphology and starburst.
Produced a metallicity map consistent with observations.
Remnant evolves onto the red sequence and resembles local early-type galaxies.
Abstract
We present a high-resolution smoothed particle hydrodynamics simulation of the Antennae galaxies (NGC 4038/4039) and follow the evolution Gyrs beyond the final coalescence. The simulation includes metallicity dependent cooling, star formation, and both stellar feedback and chemical enrichment. The simulated best-match Antennae reproduces well both the observed morphology and the off-nuclear starburst. We also produce for the first time a simulated two-dimensional metallicity map of the Antennae and find good agreement with the observed metallicity of off-nuclear stellar clusters, however the nuclear metallicities are overproduced by dex. Using the radiative transfer code SKIRT we produce multi-wavelength observations of both the Antennae and the merger remnant. The Gyr old remnant is well fitted with a S\'ersic profile of , and with an -band effective…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
