Dark Matter as Two Forms Could Explain Galactic Gamma-Ray Clues
A new JCAP study suggests dark matter may consist of two different particle types whose likelihood of annihilation depends on their relative abundances in a given galaxy. This two-component model could reconcile the Milky Way’s gamma-ray excess with the lack of a similar signal in dwarf galaxies, offering a flexible alternative to traditional single-particle dark matter theories. Future observations, especially with the Fermi Gamma-ray Telescope, could help test this idea.