Publications (80)
Impact of Neutrino Flavor Conversions on Neutron Star Merger Dynamics, Ejecta, Nucleosynthesis, and Multi-Messenger Signals
Yi Qiu, David Radice, Sherwood Richers +3
We present numerical relativity simulations of binary neutron star mergers incorporating neutrino flavor transformations triggered by fast flavor instability, quantum many-body eff…
Bayesian inference of multimessenger astrophysical data: Joint and coherent inference of gravitational waves and kilonovae
Matteo Breschi, Rossella Gamba, Gregorio Carullo +4
We present a Bayesian framework for joint and coherent analyses of multimessenger binary neutron star signals. The method, implemented in our bajes infrastructure, incorporates a j…
Constraints on the maximum densities of neutron stars from postmerger gravitational waves with third-generation observations
Matteo Breschi, Sebastiano Bernuzzi, Daniel Godzieba +2
Using data from 289 numerical relativity simulations of merging binary neutron stars, we identify, for the first time, a robust quasi-universal relation connecting the postmerger p…
Remnant properties of binary neutron star mergers undergoing prompt collapse
Arnab Dhani, Alessandro Camilletti, David Radice +4
We study the properties of remnants formed in prompt-collapse binary neutron star mergers. We consider non-spinning binaries over a range of total masses and mass ratios across a s…
FRIB and the GW170817 Kilonova
A. Aprahamian, R. Surman, A. Frebel +45
In July 2018 an FRIB Theory Alliance program was held on the implications of GW170817 and its associated kilonova for r-process nucleosynthesis. Topics of discussion included the a…
The Impact of Different Neutrino Transport Methods on Multidimensional Core-collapse Supernova Simulations
Kuo-Chuan Pan, Carlos Mattes, Evan P. O'Connor +3
Neutrinos play a crucial role in the core-collapse supernova (CCSN) explosion mechanism. The requirement of accurately calculating the transport of neutrinos makes simulations of t…
Magnetorotationally driven Supernovae as the origin of early galaxy -process elements?
Christian Winteler, Roger Kaeppeli, Albino Perego +5
We examine magnetorotationally driven supernovae as sources of -process elements in the early Galaxy. On the basis of thermodynamic histories of tracer particles from a three-di…
Numerical Relativity Simulations of the Neutron Star Merger GW170817: Long-Term Remnant Evolutions, Winds, Remnant Disks, and Nucleosynthesis
Vsevolod Nedora, Sebastiano Bernuzzi, David Radice +7
We present a systematic numerical-relativity study of the dynamical ejecta, winds and nucleosynthesis in neutron star merger remnants. Binaries with the chirp mass compatible with…
Neutrino Flavor Evolution in Binary Neutron Star Merger Remnants
Maik Frensel, Meng-Ru Wu, Cristina Volpe +1
We study the neutrino flavor evolution in the neutrino-driven wind from a binary neutron star merger remnant consisting of a massive neutron star surrounded by an accretion disk. W…
Numerical relativity simulations of prompt collapse mergers: threshold mass and phenomenological constraints on neutron star properties after GW170817
Rahul Kashyap, Abhishek Das, David Radice +10
We determine the threshold mass for prompt (no bounce) black hole formation in equal-mass neutron star (NS) mergers using a new set of 227 numerical relativity simulations. We cons…
Mapping dynamical ejecta and disk masses from numerical relativity simulations of neutron star mergers
Vsevolod Nedora, Federico Schianchi, Sebastiano Bernuzzi +6
We present fitting formulae for the dynamical ejecta properties and remnant disk masses from the largest to date sample of numerical relativity simulations. The considered data inc…
Explosion Dynamics of Parametrized Spherically Symmetric Core-Collapse Supernova Simulations
Kevin Ebinger, Sanjana Sinha, Carla Fröhlich +6
We report on a method, PUSH, for triggering core-collapse supernova (CCSN) explosions of massive stars in spherical symmetry. This method provides a framework to study many importa…
An advanced leakage scheme for neutrino treatment in astrophysical simulations
Albino Perego, Ruben Cabezón, Roger Käppeli
We present an Advanced Spectral Leakage (ASL) scheme to model neutrinos in the context of core-collapse supernovae and compact binary mergers. Based on previous gray leakage scheme…
Did a Kilonova Set Off in Our Galactic Backyard 3.5 Myr ago?
Leonardo Chiesa, Albino Perego, Federico Maria Guercilena
The recent detection of the live isotopes and in deep ocean sediments dating back to the past 3-4 Myr poses a serious challenge to the identificati…
Neutrino emission from binary neutron star mergers: characterizing light curves and mean energies
Marco Cusinato, Federico Maria Guercilena, Albino Perego +4
Neutrinos are copiously emitted by neutron star mergers, due to the high temperatures reached by dense matter during the merger and its aftermath. Neutrinos influence the merger dy…
Nucleosynthesis in the Ejecta of Neutron Star Mergers
Dirk Martin, Albino Perego, Almudena Arcones +2
Heavy elements like gold, platinum or uranium are produced in the r-process, which needs neutron-rich and explosive environments. Neutron star mergers are a promising candidate for…
Filling the Mass Gap: How Kilonova Observations can Unveil the Nature of the Compact Object Merging with the Neutron Star
Claudio Barbieri, Om Sharan Salafia, Monica Colpi +3
In this letter we focus on the peculiar case of a coalescing compact-object binary whose chirp mass is compatible both with a neutron star-neutron star and black hole-neutron star…
Kilohertz Gravitational Waves From Binary Neutron Star Mergers: Numerical-relativity Informed Postmerger Model
Matteo Breschi, Sebastiano Bernuzzi, Kabir Chakravarti +3
We present , an analytical model of gravitational-waves from neutron star merger remnants informed using 618 numerical relativity (NR) simulations. is de…
-process nucleosynthesis in the early Universe through fast mergers of compact binaries in triple systems
Matteo Bonetti, Albino Perego, Pedro R. Capelo +2
Surface abundance observations of halo stars hint at the occurrence of -process nucleosynthesis at low metallicity (), possibly within the first yr after…
Calibration of the Advanced Spectral Leakage scheme for neutron star merger simulations, and extension to smoothed-particle hydrodynamics
Davide Gizzi, Christoffer Lundman, Evan O'Connor +2
We calibrate a neutrino transport approximation, called Advanced Spectral Leakage (ASL), with the purpose of modeling neutrino-driven winds in neutron star mergers. Based on a numb…
Science with the Einstein Telescope: a comparison of different designs
Marica Branchesi, Michele Maggiore, David Alonso +73
The Einstein Telescope (ET), the European project for a third-generation gravitational-wave detector, has a reference configuration based on a triangular shape consisting of three…
Spiral-wave wind for the blue kilonova
Vsevolod Nedora, Sebastiano Bernuzzi, David Radice +3
The AT2017gfo kilonova counterpart of the binary neutron star merger event GW170817 was characterized by an early-time bright peak in optical and UV bands. Such blue kilonova is co…
In-plasma study of opacity relevant for compact binary ejecta
Angelo Pidatella, Sergio Cristallo, Alessio Galatà +7
In the context of the INFN project PANDORA_Gr3 (Plasma for Astrophysics, Nuclear Decays Observation and Radiation for Archaeometry) and of multi-messenger astronomy, we propose a f…
Impact of in situ nuclear networks and atomic opacities on neutron star merger ejecta dynamics, nucleosynthesis, and kilonovae
Fabio Magistrelli, Sebastiano Bernuzzi, Albino Perego +2
Modeling binary neutron star merger (BNSM) ejecta evolution requires simulations involving hydrodynamics, nuclear reactions, and radiative processes. The impact of nuclear burning…
Inferring prompt black-hole formation in neutron star mergers from gravitational-wave data
Michalis Agathos, Francesco Zappa, Sebastiano Bernuzzi +3
The gravitational-wave GW170817 is associated to the inspiral phase of a binary neutron star coalescence event. The LIGO-Virgo detectors sensitivity at high frequencies was not suf…
Second release of the CoRe database of binary neutron star merger waveforms
Alejandra Gonzalez, Francesco Zappa, Matteo Breschi +15
We present the second data release of gravitational waveforms from binary neutron star merger simulations performed by the Computational Relativity (CoRe) collaboration. The curren…
PUSHing Core-Collapse Supernovae to Explosions in Spherical Symmetry III: Nucleosynthesis Yields
Sanjana Curtis, Kevin Ebinger, Carla Fröhlich +4
In a previously presented proof-of-principle study, we established a parametrized spherically symmetric explosion method (PUSH) that can reproduce many features of core-collapse su…
Outflows from Short-Lived Neutron-Star Merger Remnants Can Produce a Blue Kilonova
Sanjana Curtis, Pablo Bosch, Philipp Mösta +5
We present a 3D general-relativistic magnetohydrodynamic simulation of a short-lived neutron star remnant formed in the aftermath of a binary neutron star merger. The simulation us…
Neutrino-driven winds in the aftermath of a neutron star merger: nucleosynthesis and electromagnetic transients
Dirk Martin, Albino Perego, Almudena Arcones +3
We present a comprehensive nucleosynthesis study of the neutrino-driven wind in the aftermath of a binary neutron star merger. Our focus is the initial remnant phase when a massive…
A multi-dimensional implementation of the Advanced Spectral neutrino Leakage scheme
Davide Gizzi, Evan O'Connor, Stephan Rosswog +3
We present a new, multi-dimensional implementation of the Advanced Spectral Leakage (ASL) scheme with the purpose of modelling neutrino-matter interactions in neutron star mergers.…
Direct Measurement of the Accretion Disk Formed in Prompt Collapse Mergers with Future Gravitational-Wave Observatories
Arnab Dhani, Alessandro Camilletti, Alessio Ludovico De Santis +6
The production site of heavy r-process elements, such as Gold and Uranium, is uncertain. Neutron star mergers are the only astrophysical phenomenon in which we have witnessed their…
CoRe database of binary neutron star merger waveforms and its application in waveform development
Tim Dietrich, David Radice, Sebastiano Bernuzzi +7
We present the Computational Relativity CoRe collaboration's public database of gravitational waveforms from binary neutron star mergers. The database currently contains 367 wavefo…
Accretion-induced prompt black hole formation in asymmetric neutron star mergers, dynamical ejecta and kilonova signals
Sebastiano Bernuzzi, Matteo Breschi, Boris Daszuta +9
We present new numerical relativity results of neutron star mergers with chirp mass and mass ratios and using finite-temperature equations of state…
Do black holes remember what they are made of?
Harshraj Bandyopadhyay, David Radice, Aviral Prakash +4
We study the ringdown signal of black holes formed in prompt-collapse binary neutron star mergers. We analyze data from numerical relativity simulations. We show that the $(\e…
The peculiar short-duration GRB 200826A and its supernova
A. Rossi, B. Rothberg, E. Palazzi +31
Gamma-ray bursts (GRBs) are classified as long and short events. Long GRBs (LGRBs) are associated with the end states of very massive stars, while short GRBs (SGRBs) are linked to…
Element formation in radiation-hydrodynamics simulations of kilonovae
Fabio Magistrelli, Sebastiano Bernuzzi, Albino Perego +1
Understanding the details of -process nucleosynthesis in binary neutron star mergers (BNSM) ejecta is key to interpreting kilonova observations and identifying the role of BNSMs…
Binary neutron star merger simulations with neutrino transport and turbulent viscosity: impact of different schemes and grid resolution
Francesco Zappa, Sebastiano Bernuzzi, David Radice +1
We present a systematic numerical relativity study of the impact of different treatment of microphysics and grid resolution in binary neutron star mergers. We consider series of si…
Thermodynamics conditions of matter in neutron star mergers
Albino Perego, Sebastiano Bernuzzi, David Radice
Matter in neutron star collisions can reach densities up to few times the nuclear saturation threshold and temperatures up to one hundred MeV. Understanding the structure and compo…
kiloHertz gravitational waves from binary neutron star remnants: time-domain model and constraints on extreme matter
Matteo Breschi, Sebastiano Bernuzzi, Francesco Zappa +4
The remnant star of a neutron star merger is an anticipated loud source of kiloHertz gravitational waves that conveys unique information on the equation of state of hot matter at e…
Effects Of Circum-nuclear Disk Gas Evolution And The Spin Of Central Black Holes
Umberto Maio, Massimo Dotti, Margarita Petkova +2
Mass and spin are the only two parameters needed to completely characterize black holes in General Relativity. However, the interaction between black holes and their environment is…
Dynamical ejecta synchrotron emission as possible contributor to the changing behaviour of GRB170817A
Vsevolod Nedora, David Radice, Sebastiano Bernuzzi +5
Over the past three years, the fading non-thermal emission from the GW170817 remained generally consistent with the afterglow powered by synchrotron radiation produced by the inter…
Black holes, gravitational waves and fundamental physics: a roadmap
Leor Barack, Vitor Cardoso, Samaya Nissanke +203
The grand challenges of contemporary fundamental physics---dark matter, dark energy, vacuum energy, inflation and early universe cosmology, singularities and the hierarchy problem-…
Long-lived Remnants from Binary Neutron Star Mergers
David Radice, Albino Perego, Sebastiano Bernuzzi +1
Massive neutron star (NS) with lifetimes of at least several seconds are expected to be the result of a sizable fraction of NS mergers. We study their formation using a large set o…
The Properties of Short gamma-ray burst Jets Triggered by neutron star mergers
Ariadna Murguia-Berthier, Enrico Ramirez-Ruiz, Gabriela Montes +6
The most popular model for short gamma-ray bursts (sGRBs) involves the coalescence of binary neutron stars. Because the progenitor is actually hidden from view, we must consider un…
-process Nucleosynthesis and Kilonovae from Hypermassive Neutron Star Remnants
Sanjana Curtis, Philipp Mösta, Zhenyu Wu +4
We investigate -process nucleosynthesis and kilonova emission resulting from binary neutron star (BNS) mergers based on a three-dimensional (3D) general-relativistic magnetohydr…
Particle Physics and Gravitational Waves as complementary windows on the Universe
Steven D. Bass, Laura Baudis, Gianfranco Bertone +16
Particle physics and gravitational waves provide complementary probes of the deep structure of the Universe. Gravitational waves from the mergers of neutron stars and black holes a…
Neutrino-driven winds from neutron star merger remnants
Albino Perego, Stephan Rosswog, Ruben Cabezon +4
We present a detailed, 3D hydrodynamics study of the neutrino-driven winds that emerge from the remnant of a NS merger. Our simulations are performed with the Newtonian, Eulerian c…
GW170817: Joint Constraint on the Neutron Star Equation of State from Multimessenger Observations
David Radice, Albino Perego, Francesco Zappa +1
Gravitational waves detected from the binary neutron star (NS) merger GW170817 constrained the NS equation of state by placing an upper bound on certain parameters describing the b…
AT2017gfo: an anisotropic and three-component kilonova counterpart of GW170817
Albino Perego, David Radice, Sebastiano Bernuzzi
The detection of a kilo/macronova electromagnetic counterpart (AT2017gfo) of the first gravitational wave signal compatible with the merger of two neutron stars (GW170817) has conf…
The Dynamics of Binary Neutron Star Mergers and of GW170817
David Radice, Sebastiano Bernuzzi, Albino Perego
With the first observation of a binary neutron star merger through gravitational waves and light GW170817, compact binary mergers have now taken the center stage in nuclear astroph…
Gravitational-wave luminosity of binary neutron stars mergers
Francesco Zappa, Sebastiano Bernuzzi, David Radice +2
We study the gravitational-wave peak luminosity and radiated energy of quasicircular neutron star mergers using a large sample of numerical relativity simulations with different bi…
Geometric and thermodynamic characterization of binary neutron star accretion discs
Alessandro Camilletti, Albino Perego, Federico Maria Guercilena +2
Accretion disks formed in binary neutron star mergers play a central role in many astrophysical processes of interest, including the launching of relativistic jets or the ejection…
A New Moment-Based General-Relativistic Neutrino-Radiation Transport Code: Methods and First Applications to Neutron Star Mergers
David Radice, Sebastiano Bernuzzi, Albino Perego +1
We present a new moment-based energy-integrated neutrino transport code for neutron star merger simulations in general relativity. In the merger context, ours is the first code to…
Microscopic equation of state of hot nuclear matter for numerical relativity simulations
Domenico Logoteta, Albino Perego, Ignazio Bombaci
A precise understanding of the equation of state (EOS) of dense and hot matter is key to modeling relativistic astrophysical environments, including core-collapse supernovae (CCSNe…
Neutrino trapping and out-of-equilibrium effects in binary neutron star merger remnants
Pedro Luis Espino, Peter Hammond, David Radice +5
We study out-of-thermodynamic equilibrium effects in neutron star mergers with 3D general-relativistic neutrino-radiation large-eddy simulations. During merger, the cores of the ne…
Exploring Composition Mixing in Kilonova Ejecta with Ray-by-ray Simulations
Ruocheng Zhai, David Radice, Fabio Magistrelli +2
Binary neutron star merger (BNSM) ejecta are considered a primary repository of -process nucleosynthesis and a source of the observed heavy-element abundances. We implement comp…
AT2017gfo: Bayesian inference and model selection of multi-component kilonovae and constraints on the neutron star equation of state
Matteo Breschi, Albino Perego, Sebastiano Bernuzzi +4
The joint detection of the gravitational wave GW170817, of the short -ray burst GRB170817A and of the kilonova AT2017gfo, generated by the the binary neutron star merger observ…
PUSHing core-collapse supernovae to explosions in spherical symmetry IV: Explodability, remnant properties and nucleosynthesis yields of low metallicity stars
Kevin Ebinger, Sanjana Curtis, Somdutta Ghosh +5
In this fourth paper of the series, we use the parametrized, spherically symmetric explosion method PUSH to perform a systematic study of two sets of non-rotating stellar progenito…
Binary Neutron Star Mergers: Mass Ejection, Electromagnetic Counterparts and Nucleosynthesis
David Radice, Albino Perego, Kenta Hotokezaka +3
We present a systematic numerical relativity study of the mass ejection and the associated electromagnetic transients and nucleosynthesis from binary neutron star (NS) mergers. We…
Neutron star binary orbits in their host potential: effect on early r-process enrichment
Matteo Bonetti, Albino Perego, Massimo Dotti +1
Coalescing neutron star binary (NSB) systems are primary candidates for -process enrichment of galaxies. The recent detection of -process elements in ultra-faint dwarf (UFD)…
The Science of the Einstein Telescope
Adrian Abac, Raul Abramo, Simone Albanesi +485
Einstein Telescope (ET) is the European project for a gravitational-wave (GW) observatory of third-generation. In this paper we present a comprehensive discussion of its science ob…
Matter Neutrino Resonance Transitions above a Neutron Star Merger Remnant
Yong-Lin Zhu, Albino Perego, Gail C. McLaughlin
The Matter-Neutrino Resonance (MNR) phenomenon has the potential to significantly alter the flavor content of neutrinos emitted from compact object mergers. We present the first ca…
Muons in the aftermath of neutron star mergers and their impact on trapped neutrinos
Eleonora Loffredo, Albino Perego, Domenico Logoteta +1
In the upcoming years, present and next-generation gravitational wave observatories will detect a larger number of binary neutron star (BNS) mergers with increasing accuracy. In th…
Open-source library for performance-portable neutrino reaction rates: Application to neutron star mergers
Leonardo Chiesa, Maitraya Bhattacharyya, Filippo Mazzini +3
A realistic and detailed description of neutrinos in binary neutron star (BNS) mergers is essential to build reliable models of such systems. To this end, we present BNS_NURATES, a…
Catching Element Formation In The Act
Chris L. Fryer, Frank Timmes, Aimee L. Hungerford +216
Gamma-ray astronomy explores the most energetic photons in nature to address some of the most pressing puzzles in contemporary astrophysics. It encompasses a wide range of objects…
-process nucleosynthesis from compact binary mergers
Albino Perego, Friedrich-Karl Thielemann, Gabriele Cescutti
The merger of two neutron stars or of a neutron star and a black hole often result in the ejection of a few percents of a solar mass of matter expanding at high speed in space. Bei…
PUSHing Core-Collapse Supernovae to Explosions in Spherical Symmetry II: Explodability and Global Properties
Kevin Ebinger, Sanjana Curtis, Carla Fröhlich +4
In a previously presented proof-of-principle study we established a parametrized spherically symmetric explosion method (PUSH) that can reproduce many features of core-collapse sup…
Viscous-Dynamical Ejecta from Binary Neutron Star Merger
David Radice, Albino Perego, Kenta Hotokezaka +3
General-relativistic simulations of binary neutron star mergers with viscosity reveal a new outflow mechanism operating in unequal mass binaries on dynamical timescales and enabled…
Signatures of deconfined quark phases in binary neutron star mergers
Aviral Prakash, David Radice, Domenico Logoteta +6
(abridged) We investigate the quark deconfinement phase transition in the context of binary neutron star (BNS) mergers. We employ a new finite-temperature composition-dependent equ…
Prospects for Direct Detection of Black Hole Formation in Neutron Star Mergers with Next-Generation Gravitational-Wave Detectors
Arnab Dhani, David Radice, Jan Schütte-Engel +5
A direct detection of black hole formation in neutron star mergers would provide invaluable information about matter in neutron star cores and finite temperature effects on the nuc…
Neutrino pair annihilation above merger remnants: implications of a long-lived massive neutron star
Albino Perego, Hannah Yasin, Almudena Arcones
Binary neutron star mergers are plausible progenitor candidates for short gamma-ray bursts (GRBs); however, a detailed explanation of their central engine is still lacking. The ann…
Core-collapse supernovae in the hall of mirrors. A three-dimensional code-comparison project
Rubén M. Cabezón, Kuo-Chuan Pan, Matthias Liebendörfer +5
Modeling core-collapse supernovae (CCSNe) with neutrino transport in three dimensions (3D) requires tremendous computing resources and some level of approximation. We present a fir…
Thermodynamics conditions of matter in the neutrino decoupling region during neutron star mergers
Andrea Endrizzi, Albino Perego, Francesco M. Fabbri +6
Neutrino-matter interactions play a key role in binary neutron star mergers. Thermodynamics conditions at the surfaces where neutrinos decouple from matter influence neutrino spect…
What if GW190425 did not produce a black hole promptly?
David Radice, Giacomo Ricigliano, Mukul Bhattacharya +3
It is widely believed that the binary neutron star merger GW190425 produced a black hole promptly upon merger. Motivated by the potential association with the fast radio burst FRB…
PUSHing Core-Collapse Supernovae to Explosions in Spherical Symmetry: Nucleosynthesis Yields
Sanjana Sinha, Carla Fröhlich, Kevin Ebinger +5
Core-collapse supernovae (CCSNe) are the extremely energetic deaths of massive stars. They play a vital role in the synthesis and dissemination of many heavy elements in the univer…
Long-lived neutron-star remnants from asymmetric binary neutron star mergers: element formation, kilonova signals and gravitational waves
Sebastiano Bernuzzi, Fabio Magistrelli, Maximilian Jacobi +3
We present 3D general-relativistic neutrino-radiation hydrodynamics simulations of two asymmetric binary neutron star mergers producing long-lived neutron stars remnants and spanni…
Ni production in long-lived binary neutron star merger remnants
Maximilian Jacobi, Fabio Magistrelli, Eleonora Loffredo +5
We investigate the nucleosynthesis and kilonova emission based on numerical-relativity binary neutron star merger simulations that incorporate a two-moment neutrino-transport schem…
XKN: a Semi-analytic Framework for the Modelling of Kilonovae
Giacomo Ricigliano, Albino Perego, Ssohrab Borhanian +4
After GW170817, kilonovae have become of great interest for the astronomical, astrophysics and nuclear physics communities, due to their potential in revealing key information on t…
Radiation hydrodynamics modeling of kilonovae with SNEC
Zhenyu Wu, Giacomo Ricigliano, Rahul Kashyap +2
We develop a method to compute synthetic kilonova light curves that combines numerical relativity simulations of neutron star mergers and the radiation-hydrodynamic…
Can jets make the radioactively powered emission from neutron star mergers bluer?
Lorenzo Nativi, Mattia Bulla, Stephan Rosswog +5
Neutron star mergers eject neutron-rich matter in which heavy elements are synthesised. The decay of these freshly synthesised elements powers electromagnetic transients ("macronov…