Galactic structure explained with dissipative mirror dark matter

Understand

Dissipative dark matter, such as mirror dark matter and related hidden sector dark matter candidates, requires an energy source to stabilize dark matter halos in spiral galaxies.

• It has been proposed previously that supernovae could be the source of this energy.
• Recently, it has been argued that this mechanism might explain two galactic scaling relations inferred from observations of spiral galaxies.
• One of which is that $\rho_0 r_0$ is roughly constant, and another relates the galactic luminosity to $r_0$.