273 citations · 1.4k across the 71 of their papers we have counts for
11 papers · 1 filter
Compact object mergers: exploring uncertainties from stellar and binary evolution with SEVN
Giuliano Iorio, Michela Mapelli, Guglielmo Costa +9
Population-synthesis codes are an unique tool to explore the parameter space of massive binary star evolution and binary compact object (BCO) formation. Most population-synthesis c…
Lagrange vs. Lyapunov stability of hierarchical triple systems: dependence on the mutual inclination between inner and outer orbits
Toshinori Hayashi, Alessandro A. Trani, Yasushi Suto
While there have been many studies examining the stability of hierarchical triple systems, the meaning of ``stability'' is somewhat vague and has been interpreted differently in pr…
Dynamical disruption timescales and chaotic behavior of hierarchical triple systems
Toshinori Hayashi, Alessandro A. Trani, Yasushi Suto
We examine the stability of hierarchical triple systems using direct -body simulations without adopting a secular perturbation approximation. We estimate their disruption timesc…
Compact Binary Coalescences: Astrophysical Processes and Lessons Learned
Mario Spera, Alessandro Alberto Trani, Mattia Mencagli
On 11 February 2016, the LIGO and Virgo scientific collaborations announced the first direct detection of gravitational waves, a signal caught by the LIGO interferometers on 14 Sep…
Modeling gravitational few-body problems with TSUNAMI and OKINAMI
Alessandro Alberto Trani, Mario Spera
In recent years, an increasing amount of attention is being paid to the gravitational few-body problem and its applications to astrophysical scenarios. Among the main reasons for t…
Predicting the Stability of Hierarchical Triple Systems with Convolutional Neural Networks
Florian Lalande, Alessandro Alberto Trani
Understanding the long-term evolution of hierarchical triple systems is challenging due to its inherent chaotic nature, and it requires computationally expensive simulations. Here…
Extreme eccentricities of triple systems: Analytic results
Abhi Mangipudi, Evgeni Grishin, Alessandro A. Trani +1
Triple stars and compact objects are ubiquitously observed in nature. Their long-term evolution is complex; in particular, the von-Zeipel-Lidov-Kozai (ZLK) mechanism can potentiall…
Revisiting Common Envelope Evolution -- A New Semi-Analytic Model for N-body and Population Synthesis Codes
Alessandro Alberto Trani, Steven Rieder, Ataru Tanikawa +5
We present a novel way of modeling common envelope evolution in binary and few-body systems. We consider the common envelope inspiral as driven by a drag force with a power-law dep…
Influence of tidal dissipation on outcomes of binary-single encounters between stars and black holes in stellar clusters
Lucas Hellström, Abbas Askar, Alessandro A. Trani +3
In the cores of dense stellar clusters, close gravitational encounters between binary and single stars can frequently occur. Using the Tsunami code, we computed the outcome of a la…
Multiparticle collision simulations of dense stellar systems and plasmas
P. Di Cintio, M. Pasquato, L. Barbieri +13
We summarize a series of numerical experiments of collisional dynamics in dense stellar systems such as globular clusters (GCs) and in weakly collisional plasmas using a novel simu…
Tidal Disruption Events by Compact Supermassive Black Hole Binaries
Taeho Ryu, Alessandro A. Trani, Nathan W. C. Leigh
Stars can be tidally destroyed or swallowed by supermassive black hole binaries. Using a large number of accurate few-body simulations, we investigate the enhancement and suppressi…