Molecular Chemistry for Dark Matter III: DarkKROME

Understand

Dark matter that is dissipative may cool sufficiently to form compact objects, including black holes.

• Determining the abundance and mass spectrum of those objects requires an accurate model of the chemistry relevant for the cooling of the dark matter gas.
• Here we introduce a chemistry tool for dark matter, DarkKROME, an extension of the KROME software package.
• DarkKROME is designed to include all atomic and molecular processes relevant for dark matter with two unequal-mass fundamental fermions, interacting via a massless-photon mediated $U(1)$ force.