Messier 81’s <i>Planck </i>view versus its halo mapping
Messier 81’s <i>Planck </i>view versus its halo mapping
This paper is a follow-up of a previous paper about the M 82 galaxy and its halo based on Planck observations. As in the case of M 82, a substantial north-south and east-west temperature asymmetry is also found for the M 81 galaxy, extending up to galactocentric distances of about …