Simulations of shell galaxies with GADGET-2: Multi-generation shell systems
Kate\v{r}ina Barto\v{s}kov\'a, Bruno Jungwiert, Ivana Ebrov\'a, Lucie, J\'ilkov\'a, Miroslav K\v{r}\'i\v{z}ek
TL;DR
This paper presents N-body simulations of minor galaxy mergers, revealing the formation of multi-generation shell systems in elliptical galaxies, which enhances understanding of their complex structures.
Contribution
It introduces the first self-consistent simulation of multiple shell generations resulting from galaxy mergers, expanding current models of shell galaxy formation.
Findings
Multiple shell generations can form in minor mergers.
Simulations show shells persist over long timescales.
Shell structures depend on merger parameters.
Abstract
As the missing complement to existing studies of shell galaxies, we carried out a set of self-consistent N-body simulations of a minor merger forming a stellar shell system within a giant elliptical galaxy. We discuss the effect of a phenomenon possibly associated with the galaxy merger simulations --- a presence of multiple generations of shells.
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