Student Research

Interaction Induced Size Evolution In Galaxies

In this work we utilize two suites of 75 different simulations of major galaxy mergers based on the Gadget model (Springel & Hernquist+ 2003) and the novel "Feedback in Realistic Environments" FIRE model (Hopkins et al. 2014). These mergers are composed of spiral galaxies of mass ratio 2.5:1 and are set at various impact parameters, eccentricities, and relative spin-orbit orientations. We focus on the effect of interactions on the evolution of the size of the gaseous, stellar, and star-forming components of the galaxies.


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