507 citations · 2.9k across the 62 of their papers we have counts for
9 papers · 1 filter
Effective N-body models of composite collisionless stellar systems
Carlo Nipoti, Giacomo Cherchi, Giuliano Iorio +1
Gas-poor galaxies can be modelled as composite collisionless stellar systems, with a dark matter halo and one or more stellar components, representing different stellar populations…
From hydrodynamics to N-body simulations of star clusters: mergers and rotation
Alessandro Ballone, Stefano Torniamenti, Michela Mapelli +5
We present a new method to obtain more realistic initial conditions for N-body simulations of young star clusters. We start from the outputs of hydrodynamical simulations of molecu…
Constraining accretion efficiency in massive binary stars with LIGO-Virgo black holes
Yann Bouffanais, Michela Mapelli, Filippo Santoliquido +3
The growing sample of LIGO--Virgo black holes (BHs) opens new perspectives for the study of massive binary evolution. Here, we study the impact of mass accretion efficiency and com…
Formation of GW190521 from stellar evolution: the impact of the hydrogen-rich envelope, dredge-up and C(, )O rate on the pair-instability black hole mass gap
Guglielmo Costa, Alessandro Bressan, Michela Mapelli +3
Pair-instability (PI) is expected to open a gap in the mass spectrum of black holes (BHs) between M and M. The existence of the mass…
Chemo-kinematics of the RR Lyrae: the halo and the disc
G. Iorio, V. Belokurov
We present the results of a multi-component kinematic model of a large sample of RR Lyrae detected by . By imposing a four-fold symmetry and employing proper motions,…
Evidence for supernova feedback sustaining gas turbulence in nearby star-forming galaxies
Cecilia Bacchini, Filippo Fraternali, Giuliano Iorio +3
It is well known that gas in galaxy discs is highly turbulent, but there is much debate on which mechanism can energetically maintain this turbulence. Among the possible candidates…
Unresolved stellar companions with Gaia DR2 astrometry
Vasily Belokurov, Zephyr Penoyre, Semyeong Oh +9
For stars with unresolved companions, motions of the centre of light and that of mass decouple, causing a single-source astrometric model to perform poorly. We show that such stars…
Dynamics of black hole - neutron star binaries in young star clusters
Sara Rastello, Michela Mapelli, Ugo N. Di Carlo +5
Young star clusters are likely the most common birthplace of massive stars across cosmic time and influence the formation of compact binaries in several ways. Here, we simulate the…
The Tucana dwarf spheroidal galaxy: not such a massive failure after all
S. Taibi, G. Battaglia, M. Rejkuba +5
Isolated Local Group (LG) dwarf galaxies have evolved most or all of their life unaffected by interactions with the large LG spirals and therefore offer the opportunity to learn ab…