7 papers
The chemodynamical memory of a major merger in a NIHAO-UHD Milky Way analogue -- II. Were Splash stars heated or already born hot?
Sven Buder, Tobias Buck, Ãsa Skúladóttir +3
One of the most debated consequences of the Milky Way's last major merger is the so-called : stars with disc-like chemistry but halo-like kinematics, often interpreted as e…
The chemodynamical memory of a major merger in a NIHAO-UHD Milky Way analogue -- I. A golden thread through time and space
Sven Buder, Tobias Buck, Ãsa Skúladóttir +3
Understanding how past major mergers shaped the Milky Way's present-day structure is a key goal of Galactic archaeology. The Galaxy's chemical and dynamical structure retains the i…
A COMPASS to Model Comparison and Simulation-Based Inference in Galactic Chemical Evolution
Berkay Gunes, Sven Buder, Tobias Buck
We present COMPASS, a novel simulation-based inference framework that combines score-based diffusion models with transformer architectures to jointly perform parameter estimation a…
Local variations of the radial metallicity gradient in a simulated NIHAO-UHD Milky Way analogue and their implications for (extra-)galactic studies
Sven Buder, Tobias Buck, Qian-Hui Chen +1
Radial metallicity gradients are fundamental to understanding galaxy formation and evolution. In our high-resolution simulation of a NIHAO-UHD Milky Way analogue, we analyze the li…
CASBI -- Chemical Abundance Simulation-Based Inference for Galactic Archeology
Giuseppe Viterbo, Tobias Buck
Galaxies evolve hierarchically through merging with lower-mass systems and the remnants of destroyed galaxies are a key indicator of the past assembly history of our Galaxy. Howeve…
Extragalactic Stellar Tidal Streams: Observations meet Simulation
Juan Miro-Carretero, Maria A. Gomez-Flechoso, David Martinez-Delgado +11
According to the well established hierarchical framework for galaxy evolution, galaxies grow through mergers with other galaxies and the LambdaCDM cosmological model predicts that…