Dark Matter Response to Galaxy Assembly History

PEDROSA, S.; ARTALE, M. C.; TISSERA, P. B.

Santiago de Chile

Workshop; Southern Astrophysics Network Workshop 2016; 2016

Based on the previous studies by Tissera et al. 2010, we investigate the dark matter distribution inzoomed simulations of Milky Way-sized dark matter haloes from the Aquarius Project, as a function oftime. It is known that baryonic processes can affect the dark matter distribution causing both expansionand contraction in dark matter haloes at small radii. Therefore, the details of the galaxy assembly his-tory would play a fundamental role in the final configuration of dark matter haloes. In this work, weexamine how the physics of baryons can shape the dark matter profiles through the study of differentsupernovae feedback strengths. Our model includes metal-dependent cooling, star formation, and supernovae feedback. We present our preliminary results and the future perspectives of this analysis.