Search Results - "Rastello, Sara"
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Dynamics of black hole–neutron star binaries in young star clusters
Published in Monthly notices of the Royal Astronomical Society (01-09-2020)“…ABSTRACT Young star clusters are likely the most common birthplace of massive stars across cosmic time and influence the formation of compact binaries in…”
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Binary black holes in young star clusters: the impact of metallicity
Published in Monthly notices of the Royal Astronomical Society (01-10-2020)“…ABSTRACT Young star clusters are the most common birthplace of massive stars and are dynamically active environments. Here, we study the formation of black…”
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3
The Cosmic Merger Rate Density Evolution of Compact Binaries Formed in Young Star Clusters and in Isolated Binaries
Published in The Astrophysical journal (01-08-2020)“…Next generation ground-based gravitational-wave detectors will observe binary black hole (BBH) mergers up to redshift , probing the evolution of compact binary…”
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Dynamics of binary black holes in low-mass young star clusters
Published in Monthly notices of the Royal Astronomical Society (01-11-2021)“…ABSTRACT Young star clusters are dynamically active stellar systems and are a common birthplace for massive stars. Low-mass star clusters (∼300–103 M⊙) are…”
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New insights on binary black hole formation channels after GWTC-2: young star clusters versus isolated binaries
Published in Monthly notices of the Royal Astronomical Society (01-11-2021)“…ABSTRACT With the recent release of the Second Gravitational Wave Transient Catalog (GWTC-2), which introduced dozens of new detections, we are at a turning…”
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6
Intermediate-mass black holes from stellar mergers in young star clusters
Published in Monthly notices of the Royal Astronomical Society (01-11-2021)“…ABSTRACT Intermediate-mass black holes (IMBHs) in the mass range $10^2\!-\!10^5\, \mathrm{M_{\odot }}$ bridge the gap between stellar black holes (BHs) and…”
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Compact object mergers in hierarchical triples from low-mass young star clusters
Published in Monthly notices of the Royal Astronomical Society (31-01-2022)“…Abstract A binary star orbited by an outer companion constitutes a hierarchical triple system. The outer body may excite the eccentricity of the inner binary…”
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Evolution of fractality and rotation in embedded star clusters
Published in Monthly notices of the Royal Astronomical Society (11-06-2020)“…ABSTRACT More and more observations indicate that young star clusters could retain imprints of their formation process. In particular, the degree of…”
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From hydrodynamics to N-body simulations of star clusters: mergers and rotation
Published in Monthly notices of the Royal Astronomical Society (01-02-2021)“…ABSTRACT 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…”
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10
Effect of Binarity in Star Cluster Dynamical Mass Determination
Published in The Astrophysical journal (01-06-2020)“…In this paper we explore the effects that the presence of a fraction of binary stars has in the determination of a star cluster mass via the virial theorem. To…”
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11
Dynamics of binary black holes in young star clusters: the impact of cluster mass and long-term evolution
Published in Monthly notices of the Royal Astronomical Society (20-10-2022)“…ABSTRACT Dynamical interactions in dense star clusters are considered one of the most effective formation channels of binary black holes (BBHs). Here, we…”
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12
Dynamical formation of Gaia BH1 in a young star cluster
Published in Monthly notices of the Royal Astronomical Society (01-11-2023)“…ABSTRACT Gaia BH1, the first quiescent black hole (BH) detected from Gaia data, poses a challenge to most binary evolution models: its current mass ratio is…”
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13
GW190521 formation via three-body encounters in young massive star clusters
Published in Monthly notices of the Royal Astronomical Society (01-12-2021)“…ABSTRACT GW190521 is the most massive binary black hole (BBH) merger observed to date, and its primary component lies in the pair-instability (PI) mass gap…”
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14
The impact of binaries on the evolution of star clusters from turbulent molecular clouds
Published in Monthly notices of the Royal Astronomical Society (01-10-2021)“…ABSTRACT Most of massive stars form in binary or higher order systems in clumpy, substructured clusters. In the very first phases of their life, these stars…”
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The dragon-II simulations – I. Evolution of single and binary compact objects in star clusters with up to 1 million stars
Published in Monthly notices of the Royal Astronomical Society (01-03-2024)“…ABSTRACT We present the first results of the Dragon-II simulations, a suite of 19 N-body simulations of star clusters with up to 106 stars, with up to 33 per…”
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A MODEST review
Published in Computational astrophysics and cosmology (06-11-2018)“…We present an account of the state of the art in the fields explored by the research community invested in “Modeling and Observing DEnse STellar systems”. For…”
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Effect of binarity in star cluster dynamical mass determination
Published 06-05-2020“…In this paper we explore the effects that the presence of a fraction of binary stars has in the determination of a star cluster mass via the virial theorem. To…”
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Dynamical formation of Gaia BH3 in the progenitor globular cluster of the ED-2 stream
Published 09-07-2024“…A&A 688, L2 (2024) Context. The star-black hole (S-BH) binary known as Gaia BH3, discovered by the Gaia Collaboration is chemically and kinematically…”
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Dynamics of binary black holes in young star clusters: the impact of cluster mass and long-term evolution
Published 22-09-2022“…Dynamical interactions in dense star clusters are considered one of the most effective formation channels of binary black holes (BBHs). Here, we present direct…”
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Dynamical formation of $Gaia$ BH1 in a young star cluster
Published 22-06-2023“…$Gaia$ BH1, the first quiescent black hole (BH) detected from $Gaia$ data, poses a challenge to most binary evolution models: its current mass ratio is…”
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