214 citations · 3.9k across the 98 of their papers we have counts for
16 papers · 1 filter
Binary intermediate-mass black hole mergers in globular clusters
Alexander Rasskazov, Giacomo Fragione, Bence Kocsis
We consider the formation of binary intermediate black holes (BIMBH) in globular clusters (GC), which could happen either in situ or due to the mergers between clusters. We simulat…
Modeling Dense Star Clusters in the Milky Way and Beyond with the Cluster Catalog
Kyle Kremer, Claire S. Ye, Nicholas Z. Rui +6
We present a set of 148 independent -body simulations of globular clusters (GCs) computed using the code (). At an age of $\sim10-13…
On the Rate of Neutron Star Binary Mergers from Globular Clusters
Claire S. Ye, Wen-fai Fong, Kyle Kremer +4
The first detection of gravitational waves from a neutron star - neutron star (NS-NS) merger, GW170817, and the increasing number of observations of short gamma-ray bursts (SGRBs)…
Effective spin distribution of black hole mergers in triples
Giacomo Fragione, Bence Kocsis
Many astrophysical scenarios have been proposed to explain the several black hole (BH) and neutron star binary mergers observed via gravitational waves (GWs) by the LIGO-Virgo coll…
Electromagnetic transients and gravitational waves from white dwarf disruptions by stellar black holes in triple systems
Giacomo Fragione, Brian D. Metzger, Rosalba Perna +2
Mergers of binaries comprised of compact objects can give rise to explosive transient events, heralding the birth of exotic objects which cannot be formed through single star evolu…
Black hole-neutron star mergers from triples II: the role of metallicity and spin-orbit misalignment
Giacomo Fragione, Abraham Loeb
Observations of black hole-neutron star (BH-NS) mergers via gravitational waves (GWs) are of great interest for their electromagnetic counterparts, such as short gamma-ray bursts,…
Supernovae in massive binaries and compact object mergers near supermassive black holes
Giacomo Fragione, Idan Ginsburg, Abraham Loeb
Nuclear star clusters that surround supermassive black holes (SMBHs) in galactic nuclei are among the densest systems in the Universe, harbouring millions of stars and compact obje…
Tidal disruption events, main-sequence extreme-mass ratio inspirals and binary star disruptions in galactic nuclei
Re'em Sari, Giacomo Fragione
The Galactic Center has been under intense scrutiny in the recent years thanks to the unprecedented missions aiming at measuring the gas and star dynamics near the supermassive bla…
Tidal disruption events onto stellar black holes in triples
Giacomo Fragione, Nathan Leigh, Rosalba Perna +1
Stars passing too close to a black hole can produce tidal disruption events (TDEs), when the tidal force across the star exceeds the gravitational force that binds it. TDEs have us…
Black hole-neutron star mergers from triples
Giacomo Fragione, Abraham Loeb
Mergers of black hole (BH) and neutron star (NS) binaries are expected to be observed by gravitational wave observatories in the coming years. Until now, LIGO has only set an upper…
Eccentric binary black hole mergers in globular clusters hosting intermediate-mass black holes
Giacomo Fragione, Omer Bromberg
Globular clusters (GCs) may harbour intermediate-mass black holes (IMBHs) at their centres. In these dynamically active environments stellar-mass black holes (SBHs) sink to the cen…
Black hole and neutron star mergers in Galactic Nuclei: the role of triples
Giacomo Fragione, Nathan Leigh, Rosalba Perna
Nuclear star clusters that surround supermassive black holes (SMBHs) in galactic nuclei are thought to contain large numbers of black holes (BHs) and neutron stars (NSs), a fractio…
A new method to constrain the origins of dark matter-free galaxies and their unusual globular clusters
Nathan Leigh, Giacomo Fragione
We present a novel method to constrain the past collisional evolution of observed globular cluster (GC) systems, in particular their mass functions. We apply our method to a pair o…
Massive binary star mergers in galactic nuclei: implications for blue stragglers, binary S-stars and gravitational waves
Giacomo Fragione, Fabio Antonini
Galactic nuclei are often found to contain young stellar populations and, in most cases, a central supermassive black hole (SMBH). Most known massive stars are found in binaries or…
Black hole mergers from quadruples
Giacomo Fragione, Bence Kocsis
With the hundreds of merging binary black hole (BH) signals expected to be detected by LIGO/Virgo, LISA and other instruments in the next few years, the modeling of astrophysical c…
Intermediate-Mass Black Holes in binary-rich star clusters
L. Subr, G. Fragione, J. Dabringhausen
There is both theoretical expectation and some observational clues that intermediate mass black holes reside in nuclei of globular clusters. In order to find an independent indicat…