442 citations · 4.6k across the 82 of their papers we have counts for
6 papers · 2 filters
Galactic globular clusters: a new catalog of masses, structural parameters, velocity dispersion profiles, proper motions and space orbits
Michael Hilker, Holger Baumgardt, Antonio Sollima +1
We collected radial velocities of more than 50.000 individual stars in 156 Galactic globular clusters (GGC) and matched them with HST photometry and Gaia DR2 proper motions. This a…
No evidence for intermediate-mass black holes in the globular clusters Cen and NGC 6624
Holger Baumgardt, Chenyu He, Sarah M. Sweet +8
We compare the results of a large grid of N-body simulations with the surface brightness and velocity dispersion profiles of the globular clusters Cen and NGC 6624. Our models…
The effect of tides on the Sculptor dwarf spheroidal galaxy
G. Iorio, C. Nipoti, G. Battaglia +1
Dwarf spheroidal galaxies (dSphs) appear to be some of the most dark matter dominated objects in the Universe. Their dynamical masses are commonly derived using the kinematics of s…
The stellar Initial Mass Function of the solar neighbourhood revealed by Gaia
A. Sollima
I use a sample of more than 120,000 stars in the solar neighbourhood with parallaxes, magnitudes and colours estimated with unprecedented accuracy by the second data release of the…
The eye of Gaia on globular clusters kinematics: internal rotation
A. Sollima, H. Baumgardt, M. Hilker
We derived the three-dimensional velocities of individual stars in a sample of 62 Galactic globular clusters using proper motions from the second data release of the Gaia mission t…
Globular cluster number density profiles using Gaia DR2
T. J. L. de Boer, M. Gieles, E. Balbinot +4
Using data from Gaia DR2, we study the radial number density profiles of the Galactic globular cluster sample. Proper motions are used for accurate membership selection, especially…