7 papers
On the Separation Between the Brightest Cluster Galaxy and the Intracluster Light
Emanuele Contini, Sukyoung K. Yi
We present a model-based framework to define an aperture separation between the brightest cluster galaxy (BCG) and the intracluster light (ICL). Using the intrinsic BCG and ICL com…
Black Hole Occupation Fraction: Dependence on Black Hole Mass Threshold, Environment, Resolution and Redshift
Emanuele Contini, J. K. Jang, Jinsu Rhee +2
We take advantage of the state-of-the-art semi-analytic model \texttt{FEGA25} \citep{contini2025}, run on merger trees extracted from three dark matter-only cosmological simulation…
Effects of Resolution and Local Stability on Galactic Disks: Halo Resolution and Softening on Bar Formation
SungWon Kwak, Ivan Minchev, Matthias Steinmetz +1
Using N-body simulations, we examine the impact of dark matter (DM) halo resolution and gravitational softening on bar formation. We generate isolated disk-halo systems with fixed…
Effects of Resolution and Local Stability on Galactic Disks: I. Multiple Spiral Mode Formation via Swing Amplification
SungWon Kwak, Ivan Minchev, Christoph Pfrommer +2
We investigate the formation of multiple spiral modes in Milky Way-like disk-halo systems without explicitly exciting perturbations. We explore how numerical resolution, the level…
Introducing NewCluster: the first half of the history of a high-resolution cluster simulation
San Han, Sukyoung K. Yi, Yohan Dubois +8
We introduce NewCluster, a new high-resolution cluster simulation designed to serve as the massive halo counterpart of the modern cosmological galaxy evolution framework. The zoom-…
Roles of Supernova and Active Galactic Nucleus Feedback in Shaping the Baryonic Content in a Wide Range of Dark Matter Halo Masses
Emanuele Contini, Changjo Seo, Jinsu Rhee +2
We build upon FEGA25 (Contini et al 2025), a previously introduced semi-analytic model for galaxy formation and evolution, focusing on its enhanced treatment of supernova and activ…