The Core-Cusp Problem in Cold Dark Matter Halos and Supernova Feedback: Effects of Oscillation

Understand

This study investigates the dynamical response of dark matter (DM) halos to recurrent starbursts in forming less-massive galaxies to solve the core-cusp problem.

• The gas, which is heated by supernova feedback after a starburst, expands and the star formation then terminates.
• This expanding gas loses energy by radiative cooling and then falls back toward the galactic center.
• Subsequently, the starburst is enhanced again.