The HST large programme on $\omega$ Centauri -- III. Absolute proper motion

M. Libralato, A. Bellini, L. R. Bedin +11

In this paper we report a new estimate of the absolute proper motion (PM) of the globular cluster NGC 5139 ($\omega$ Cen) as part of the HST large program GO-14118+14662. We analyzed a…