Using the full power of the cosmic microwave background to probe axion dark matter
Using the full power of the cosmic microwave background to probe axion dark matter
The cosmic microwave background (CMB) places stringent constraints on models of dark matter (DM), and on the initial conditions of the Universe. The full Planck data set is used to test the possibility that some fraction of the DM is composed of ultralight axions (ULAs). This represents the first use …