http://arxiv.org/abs/2009.11320
We use {\it Gaia} DR2 photometry and proper motions to search for the hypothetical tidal tails of the Galactic globular cluster E\,3. Using a modified version of a classical decontamination procedure, we are able to identify the presence of an extended structure emerging from the cluster up to $r \sim 1$\,deg from its center, thus suggesting that this poorly studied cluster is undergoing a tidal disruption process. These low surface-brightness structures are aligned with the direction to the Galactic center, as expected for a cluster close to its perigalacticon. Different scenarios to explain the important amount of mass lost by this cluster are discussed.
J. Carballo-Bello, R. Salinas and A. Piatti
Fri, 25 Sep 20
-1841/62
Comments: 6 pages, 4 figures, 1 table, accepted for publication in MNRAS