New Spatially Resolved Observations of Betelgeuse from the VLA and ALMA: Evidence for Atmospheric Perturbations from a Close Companion

L. D. Matthews, A. K. Dupree, A. M. S. Richards +1

We present new spatially resolved observations of the red supergiant Betelgeuse ($\alpha$ Orionis) at seven frequencies: 22 GHz ($\lambda$1.36cm); 44 GHz ($\lambda$6.8mm); 107 GHz ($\lambda$2.8mm); 136 G…