MUSE narrow field mode observations of the central kinematics of M15

ABSTRACT We present observations of the stellar kinematics centre core collapsed globular cluster M15 obtained with MUSE integral field spectrograph on Very Large Telescope operating in narrow mode. Thanks to use adaptive optics, we obtain a spatial resolution 0.1 arcsec and are able reliably measure radial velocities 864 stars within 8 M15, thus providing largest sample ever for innermost regions this system. Combined previous using wide mode literature data, find that central complex rotation axis offset from bulk cluster. While complexity has been suggested by work, confirm it at higher significance more detail.