default values for FlattenedPowerPotential that make the density non-zero
default values for FlattenedPowerPotential that make the density non-zero

jobovy/galpy,followthesheep/galpy,followthesheep/galpy,jobovy/galpy,followthesheep/galpy,jobovy/galpy,jobovy/galpy,followthesheep/galpy