What are potential solutions to the missing satellites problem (i.e. solutions that solve the problem without discarding ACDM)? (Choose 3). O If simulations include a Galactic potential, fewer dark matter halos survive. Many low-mass galaxies exist, but are not bright enough to be seen by current telescopes. O Low mass galaxies merge into large galaxies and become part of their stellar halos. O The number of low mass dark matter halos that form is lower than predictions based on cosmological initial conditions. O lonizing photons from the first stars, galaxies or quasars heat gas until the pressure is too high to collapse into the smallest dark matter hale O Dwarf galaxies stream out of voids and into clusters and superclusters where they merge into larger galaxies.

What are potential solutions to the missing satellites problem (i.e. solutions that solve the problem without discarding ACDM)? (Choose 3). O If simulations include a Galactic potential, fewer dark matter halos survive. Many low-mass galaxies exist, but are not bright enough to be seen by current telescopes. O Low mass galaxies merge into large galaxies and become part of their stellar halos. O The number of low mass dark matter halos that form is lower than predictions based on cosmological initial conditions. O lonizing photons from the first stars, galaxies or quasars heat gas until the pressure is too high to collapse into the smallest dark matter hale O Dwarf galaxies stream out of voids and into clusters and superclusters where they merge into larger galaxies.