Macroscopic Dark Matter Constraints from Bolide Camera Networks

Understand

Macroscopic dark matter (macros) are a broad class of alternative candidates to particle dark matter.

• These candidates would transfer energy primarily through elastic scattering, and this linear energy deposition would produce observable signals if a macro were to pass through the atmosphere.
• We produce constraints for low mass macros from the null observation of bolides formed by a passing macro, across two extensive networks of cameras built originally to observe meteorites.
• The parameter space that could be probed with planned upgrades to the existing array of cameras in one of these networks still currently in use, the Desert Fireball Network in Australia, is estimated.