509 citations · 5.1k across the 105 of their papers we have counts for
9 papers · 1 filter
Structure and Internal Kinematics of Nine Inner Milky Way Globular Clusters
Roger E. Cohen, Andrea Bellini, Mattia Libralato +3
This study constitutes part of a larger effort aimed at better characterizing the Galactic globular clusters (GGCs) located towards the inner Milky Way bulge and disk. Here, we foc…
2D kinematics of massive stars near the Galactic Center
Mattia Libralato, Daniel J. Lennon, Andrea Bellini +12
The presence of massive stars (MSs) in the region close to the Galactic Center (GC) poses several questions about their origin. The harsh environment of the GC favors specific form…
Kinematic complexity around NGC419: resolving the proper motion of the cluster, the Small Magellanic Cloud and the Magellanic Bridge
Davide Massari, Silvia Raso, Mattia Libralato +1
We present proper motions in the direction of the star cluster NGC419 in the Small Magellanic Cloud. Because of the high precision o…
The absolute proper motions of the Arches and Quintuplet clusters
M. Libralato, M. Fardal, D. Lennon +2
Arches and Quintuplet are two young, massive clusters projected near the Galactic Center. To date, studies focused on understanding their origin have been based on proper motions (…
HST astrometry in the Orion Nebula Cluster: census of low-mass runaways
Imants Platais, Massimo Robberto, Andrea Bellini +6
We present a catalog of high-precision proper motions in the Orion Nebula Cluster (ONC), based on Treasury Program observations with the Hubble Space Telescope's (HST) ACS/WFC came…
HST survey of the Orion Nebula Cluster in the HO 1.4 m absorption band: I. A census of substellar and planetary mass objects
Massimo Robberto, Mario Gennaro, Maria Giulia Ubeira Gabellini +15
In order to obtain a complete census of the stellar and sub-stellar population, down to a few M in the Myr old Orion Nebula Cluster, we used the infrared channel of…
A kinematic view of NGC 1261: structural parameters, internal dispersion, absolute proper motion and Blue Straggler Stars
S. Raso, M. Libralato, A. Bellini +8
We constructed a Hubble Space Telescope (HST) astro-photometric catalog of the central region of the Galactic globular cluster NGC 1261. This catalog, complemented with Gaia DR2 da…
Proper-Motion Membership Tests for Four Planetary Nebulae in Galactic Globular Clusters
Howard E. Bond, Andrea Bellini, Kailash C. Sahu
Four planetary nebulae (PNe) are considered to be probable or possible members of Galactic globular clusters (GCs). These are Ps 1 = K648 in M15, GJJC 1 = IRAS 18333-2357 in M22, J…
The WAGGS project -- III. Discrepant mass-to-light ratios of Galactic globular clusters at high metallicity
H. Dalgleish, S. Kamann, C. Usher +10
Observed mass-to-light ratios (M/L) of metal-rich globular clusters (GCs) disagree with theoretical predictions. This discrepancy is of fundamental importance since stellar populat…