Strong evidence of Anomalous Microwave Emission from the flux density spectrum of M31

E. S. Battistelli, S. Fatigoni, M. Murgia +21

We have observed the Andromeda galaxy, Messier 31 (M31), at 6.7GHz with the Sardinia Radio Telescope. We mapped the radio emission in the C-band, re-analyzed WMAP and Planck maps,…