The Cusp/Core problem: supernovae feedback versus the baryonic clumps and dynamical friction model

Understand

In the present paper, we compare the predictions of two well known mechanisms considered able to solve the cusp/core problem (a.

• supernova feedback; b.
• baryonic clumps-DM interaction) by comparing their theoretical predictions to recent observations of the inner slopes of galaxies with masses ranging from dSphs to normal spirals.
• We compare the $\alpha$-$V_{\rm rot}$ and the $\alpha$-$M_{\ast}$ relationships, predicted by the two models with high resolution data coming from \citep{Adams2014,Simon2005}, LITTLE THINGS \citep{Oh2015}, THINGS dwarves \citep{Oh2011a,Oh2011b}, THINGS spirals \citep{Oh2015}, Sculptor, Fornax and the Milky Way.