175 citations · 1.2k across the 31 of their papers we have counts for
28 papers · 1 filter
A cautionary lesson from Gaia systematics: the mono-metallic globular cluster NGC 5904
Paolo Bianchini, Alessandra Mastrobuono-Battisti
The study of the chemistry of the stellar populations in Globular Clusters (GCs) is a fundamental task to unveil their formation in the high-redshift universe and to reconstruct th…
A Deep View into the Nucleus of the Sagittarius Dwarf Spheroidal Galaxy with MUSE. III. Discrete multi-component population-dynamical models based on the Jeans equations
Nikolay Kacharov, Mayte Alfaro-Cuello, Nadine Neumayer +12
We present comprehensive multi-component dynamical models of M54 (NGC6715), the nuclear star cluster of the Sagittarius dwarf galaxy (Sgr), which is undergoing a tidal disruption i…
Using Binaries in Globular Clusters to Catch Sight of Intermediate-Mass Black Holes
Francisco I. Aros, Anna C. Sippel, Alessandra Mastrobuono-Battisti +3
The dynamical evolution of globular clusters (GCs) is tied to their binary population, as binaries segregate to the cluster centre, leading to an increased binary fraction in the c…
Predicting Images for the Dynamics Of stellar Clusters (π-DOC): a deep learning framework to predict mass, distance and age of globular clusters
Jonathan Chardin, Paolo Bianchini
Dynamical mass estimates of simple systems such globular clusters (GCs) still suffer from up to a factor of 2 uncertainty. This is primarily due to the oversimplifications of stand…
Charting the Galactic acceleration field I. A search for stellar streams with Gaia DR2 and EDR3 with follow-up from ESPaDOnS and UVES
Rodrigo Ibata, Khyati Malhan, Nicolas Martin +10
We present maps of the stellar streams detected in the Gaia Data Release 2 (DR2) and Early Data Release 3 (EDR3) catalogs using the STREAMFINDER algorithm. We also report the spect…
Dynamical modelling of globular clusters: challenges for the robust determination of IMBH candidates
Francisco I. Aros, Anna C. Sippel, Alessandra Mastrobuono-Battisti +3
The presence or absence of intermediate-mass black holes (IMBHs) at the centre of Milky Way globular clusters (GCs) is still an open question. This is either due to observational r…
Exploring the outskirts of globular clusters: the peculiar kinematics of NGC 3201
P. Bianchini, R. Ibata, B. Famaey
The outskirts of globular clusters (GCs) simultaneously retain crucial information about their formation mechanism and the properties of their host galaxy. Thanks to the advent of…
A simple two-component description of energy equipartition and mass segregation for anisotropic globular clusters
Stefano Torniamenti, Giuseppe Bertin, Paolo Bianchini
In weakly collisional stellar systems such as some globular clusters, partial energy equipartition and mass segregation are expected to develop as a result of the cumulative effect…
Globular clusters in the era of precision astrometry
P. Bianchini
The study of the kinematics of globular clusters (GCs) offers the possibility of unveiling their long term evolution and uncovering their yet unknown formation mechanism. Gaia DR2…
A simple two-component description of mass segregation for anisotropic globular clusters
Stefano Torniamenti, Giuseppe Bertin, Paolo Bianchini
As a result of the slow action of two-body encounters, globular clusters develop mass segregation and attain a condition of only partial energy equipartition even in their central,…
Identification of the Long Stellar Stream of the Prototypical Massive Globular Cluster Centauri
Rodrigo Ibata, Michele Bellazzini, Khyati Malhan +2
Omega Centauri is the most massive globular cluster of the Milky Way, and possesses many peculiar properties. In particular, the cluster contains distinct multiple stellar populati…
The internal rotation of globular clusters revealed by Gaia DR2
P. Bianchini, R. P. van der Marel, A. del Pino +5
Line-of-sight kinematic studies indicate that many Galactic globular clusters have a significant degree of internal rotation. However, three-dimensional kinematics from a combinati…
Kinematic fingerprint of core-collapsed globular clusters
P. Bianchini, J. J. Webb, A. Sills +1
Dynamical evolution drives globular clusters toward core collapse, which strongly shapes their internal properties. Diagnostics of core collapse have so far been based on photometr…
Characterization of the velocity anisotropy of accreted globular clusters
Paolo Bianchini, Alison Sills, Meghan Miholics
Galactic globular clusters (GCs) are believed to have formed in-situ in the Galaxy as well as in dwarf galaxies later accreted onto the Milky Way. However, to date, there is no una…
Hubble Space Telescope Proper Motion (HSTPROMO) Catalogs of Galactic Globular Clusters. V. The rapid rotation of 47 Tuc traced and modeled in three dimensions
A. Bellini, P. Bianchini, A. L. Varri +5
High-precision proper motions of the globular cluster 47 Tuc have allowed us to measure for the first time the cluster rotation in the plane of the sky and the velocity anisotropy…
The relation between the mass-to-light ratio and the relaxation state of globular clusters
Paolo Bianchini, Alison Sills, Glenn van de Ven +1
The internal dynamics of globular clusters (GCs) is strongly affected by two-body interactions that bring the systems to a state of partial energy equipartition. Using a set of Mon…
Prospects for detection of intermediate-mass black holes in globular clusters using integrated-light spectroscopy
Ruggero de Vita, Michele Trenti, Paolo Bianchini +3
The detection of intermediate mass black holes (IMBHs) in Galactic globular clusters (GCs) has so far been controversial. In order to characterize the effectiveness of integrated-l…
HST proper motions in Galactic globular clusters
Laura L. Watkins, Roeland P. van der Marel, Andrea Bellini +3
Proper motions (PMs) are crucial to fully understand the internal dynamics of globular clusters (GCs). To that end, the Hubble Space Telescope (HST) Proper Motion (HSTPROMO) collab…
On the rotation of nuclear star clusters formed by cluster-inspirals
Athanasia Tsatsi, Alessandra Mastrobuono-Battisti, Glenn van de Ven +3
Nuclear Star Clusters (NSCs) are commonly observed in the centres of most galactic nuclei, including our own Milky Way. While their study can reveal important information about the…
MOCCA-SURVEY Database I: Is NGC 6535 a Dark Star Cluster Harboring an IMBH?
Abbas Askar, Paolo Bianchini, Ruggero de Vita +3
We describe the dynamical evolution of a unique type of dark star cluster model in which the majority of the cluster mass at Hubble time is dominated by an intermediate-mass black…
The effect of unresolved binaries on globular cluster proper-motion dispersion profiles
P. Bianchini, M. A. Norris, G. van de Ven +5
High-precision kinematic studies of globular clusters require an accurate knowledge of all possible sources of contamination. Amongst other sources, binary stars can introduce syst…
A novel look at energy equipartition in globular clusters
P. Bianchini, G. van de Ven, M. A. Norris +2
Two-body interactions play a major role in shaping the structural and dynamical properties of globular clusters (GCs) over their long-term evolution. In particular, GCs evolve towa…
Understanding the central kinematics of globular clusters with simulated integrated-light IFU observations
Paolo Bianchini, Mark A. Norris, Glenn van de Ven +1
The detection of intermediate mass black holes in the centres of globular clusters is highly controversial, as complementary observational methods often deliver significantly diffe…
Searching for intermediate mass black holes: understanding the data first
Paolo Bianchini, Mark Norris, Glenn van de Ven +1
The detection of intermediate mass black holes (IMBHs) in globular clusters has been hotly debated, with different observational methods delivering different outcomes for the same…