activity
20162026
most citedEvidence for Two Early Accretion Events That Built the Milky Way Stellar Halo

507 citations · 2.9k across the 62 of their papers we have counts for

collaborators
Showing astro-ph.HEShow all

17 papers · 1 filter

astro-ph.HE2026

Linking high-mass X-ray binaries to binary compact object mergers in Milky Way-like galaxies

Felipe Vivanco Cádiz, M. Celeste Artale, Nicola Masetti +5

High-mass X-ray binaries (HMXBs) constitute a potential intermediate phase connecting massive stellar binaries to the formation of coalescing binary compact objects (BCOs). Yet, th…

astro-ph.HE2026

The impact of stellar binaries and star cluster dynamics on pair-instability supernovae

Francesco Gabrielli, Cristiano Ugolini, Lavinia Paiella +12

Pair-instability supernovae (PISNe) are among the most luminous transients in the Universe. However, they have never been confidently observed. Solving this puzzle would have key i…

astro-ph.HE2026

The role of accretion efficiency, natal kicks, and angular momentum transport in the formation of the Gaia black holes

Michela Mapelli, Cecilia Sgalletta, Johanna Müller-Horn +5

Gaia has the potential to deliver several tens of new dormant black holes (BHs) with low-mass stellar companions (hereafter, Gaia BHs) in the upcoming fourth data release. Three Ga…

astro-ph.HE2025★ 3 cited

Optically thick winds of very massive stars suppress intermediate-mass black hole formation

Stefano Torniamenti, Michela Mapelli, Lumen Boco +3

Intermediate-mass black holes (IMBHs) are the link between stellar-mass and supermassive black holes. Gravitational waves have started unveiling a population of IMBHs in the $\sim…

astro-ph.HE2025

Reconstructing the origin of black hole mergers using sparse astrophysical models

V. Gayathri, Giuliano Iorio, Hiromichi Tagawa +8

The astrophysical origin of binary black hole mergers discovered by LIGO and Virgo remains uncertain. Efforts to reconstruct the processes that lead to mergers typically rely on ei…

astro-ph.HE2025★ 1 cited

Impact of stellar winds on the pair-instability supernova rate

Filippo Simonato, Stefano Torniamenti, Michela Mapelli +4

Very massive stars (VMSs, 100 M) play a crucial role in several astrophysical processes. At low metallicity, they might collapse directly into black ho…

astro-ph.HE2025★ 4 cited

Impact of accretion-induced chemically homogeneous evolution on stellar and compact binary populations

Marco Dall'Amico, Michela Mapelli, Giuliano Iorio +5

In binary star systems, mass transfer can spin up the accretor, possibly leading to efficient chemical mixing and chemically quasi-homogeneous evolution (CHE). Here, we explore the…

astro-ph.HE2024★ 9 cited

The more accurately the metal-dependent star formation rate is modeled, the larger the predicted excess of binary black hole mergers

Cecilia Sgalletta, Michela Mapelli, Lumen Boco +5

As the number of gravitational-wave detections grows, the merger rate of binary black holes (BBHs) can help us to constrain their formation, the properties of their progenitors, an…

astro-ph.HE2024★ 4 cited

Wolf-Rayet -- compact object binaries as progenitors of binary compact objects

Erika Korb, Michela Mapelli, Giuliano Iorio +2

Binaries with a Wolf-Rayet star and a compact object (WR-COs), either a black hole (BH) or a neutron star (NS), have been proposed as possible progenitors for the binary compact ob…

astro-ph.HE2024★ 9 cited

Classifying binary black holes from Population III stars with the Einstein Telescope: A machine-learning approach

Filippo Santoliquido, Ulyana Dupletsa, Jacopo Tissino +7

Third-generation (3G) gravitational-wave detectors such as the Einstein Telescope (ET) will observe binary black hole (BBH) mergers at redshifts up to . However, an uneq…

astro-ph.HE2023★ 48 cited

Impact of gas hardening on the population properties of hierarchical black hole mergers in AGN disks

M. Paola Vaccaro, Michela Mapelli, Carole Périgois +5

Hierarchical black hole (BH) mergers in active galactic nuclei (AGNs) are unique among formation channels of binary black holes (BBHs) because they are likely associated with elect…

astro-ph.HE2023★ 1 cited

Binary neutron star populations in the Milky Way

Cecilia Sgalletta, Giuliano Iorio, Michela Mapelli +7

Galactic binary neutron stars (BNSs) are a unique laboratory to probe the evolution of BNSs and their progenitors. Here, we use a new version of the population synthesis code SEVN…

astro-ph.HE2022★ 111 cited

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…

astro-ph.HE2021★ 158 cited

Hierarchical black hole mergers in young, globular and nuclear star clusters: the effect of metallicity, spin and cluster properties

Michela Mapelli, Marco Dall'Amico, Yann Bouffanais +8

We explore hierarchical black hole (BH) mergers in nuclear star clusters (NSCs), globular clusters (GCs) and young star clusters (YSCs), accounting for both original and dynamicall…

astro-ph.HE2021★ 11 cited

New insights on binary black hole formation channels after GWTC-2: young star clusters versus isolated binaries

Yann Bouffanais, Michela Mapelli, Filippo Santoliquido +5

With the recent release of the second gravitational-wave transient catalogue (GWTC-2), which introduced dozens of new detections, we are at a turning point of gravitational wave as…

astro-ph.HE2020★ 30 cited

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…

astro-ph.HE2020★ 85 cited

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…