The Proper Motion of Pyxis: the first use of Adaptive Optics in tandem with HST on a faint halo object

Tobias K. Fritz, Sean T. Linden, Paul Zivick +13

We present a proper motion measurement for the halo globular cluster Pyxis, using HST/ACS data as the first epoch, and GeMS/GSAOI Adaptive Optics data as the second, separated by a…