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Demography of black hole binaries in the era of gravitational wave astronomy

Total Cost €


EC-Contrib. €






Project "DEMOBLACK" data sheet

The following table provides information about the project.


Organization address
address: VIA 8 FEBBRAIO 2
city: PADOVA
postcode: 35122

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Italy [IT]
 Total cost 1˙994˙764 €
 EC max contribution 1˙994˙764 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2017-COG
 Funding Scheme ERC-COG
 Starting year 2018
 Duration (year-month-day) from 2018-11-01   to  2023-10-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITA DEGLI STUDI DI PADOVA IT (PADOVA) coordinator 1˙994˙764.00


 Project objective

The first direct detection of gravitational waves demonstrated that double black hole (BH) binaries exist, and can host surprisingly massive objects (> 20 solar masses). Most theoretical models do not predict the existence of such massive BHs, and the formation channels of BH binaries are essentially unconstrained. Dynamically formed BH binaries are the most elusive ones: current models either neglect them or study them in idealized systems. With DEMOBLACK, I will draw the first satisfactory picture of BH binary demography, by modeling realistic BH dynamics in a well-motivated cosmological context. I propose a novel approach for the study of BH dynamics: I will simulate the formation of BH binaries in star clusters self-consistently, starting from the hydrodynamics of the parent molecular cloud and accounting for the impact of stellar evolution, feedback, and dynamics on BH binaries. The key tool of DEMOBLACK is SEVN, my new population-synthesis code. With SEVN, I predicted the formation of massive BHs from metal-poor stars, before the first direct detection of gravitational waves. I will interface SEVN with a hydrodynamical code and with an N-body code, to study the formation of BH binaries self-consistently. I will then model the history of BH binaries across cosmic time, accounting for the evolution of metallicity. This novel approach is decisive to break degeneracies between dynamically formed and primordial BH binaries, and to make predictions for future observations by ground-based and space-borne gravitational wave interferometers.


year authors and title journal last update
List of publications.
2019 Vishal Baibhav, Emanuele Berti, Davide Gerosa, Michela Mapelli, Nicola Giacobbo, Yann Bouffanais, Ugo N. Di Carlo
Gravitational-wave detection rates for compact binaries formed in isolation: LIGO/Virgo O3 and beyond
published pages: , ISSN: 2470-0010, DOI: 10.1103/PhysRevD.100.064060
Physical Review D 100/6 2020-01-29
2018 Nicola Giacobbo, Michela Mapelli
The impact of electron-capture supernovae on merging double neutron stars
published pages: 2234-2243, ISSN: 0035-8711, DOI: 10.1093/mnras/sty2848
Monthly Notices of the Royal Astronomical Society 482/2 2020-01-29
2019 Michela Mapelli, Nicola Giacobbo, Filippo Santoliquido, Maria Celeste Artale
The properties of merging black holes and neutron stars across cosmic time
published pages: 2-13, ISSN: 0035-8711, DOI: 10.1093/mnras/stz1150
Monthly Notices of the Royal Astronomical Society 487/1 2020-01-29
2019 S Marassi, L Graziani, M Ginolfi, R Schneider, M Mapelli, M Spera, M Alparone
Evolution of dwarf galaxies hosting GW150914-like events
published pages: 3219-3232, ISSN: 0035-8711, DOI: 10.1093/mnras/stz170
Monthly Notices of the Royal Astronomical Society 484/3 2020-01-29
2019 M Celeste Artale, Michela Mapelli, Nicola Giacobbo, Nadeen B Sabha, Mario Spera, Filippo Santoliquido, Alessandro Bressan
Host galaxies of merging compact objects: mass, star formation rate, metallicity, and colours
published pages: 1675-1688, ISSN: 0035-8711, DOI: 10.1093/mnras/stz1382
Monthly Notices of the Royal Astronomical Society 487/2 2020-01-29
2019 Elisa Bortolas, Michela Mapelli
Can supernova kicks trigger EMRIs in the Galactic Centre?
published pages: 2125-2138, ISSN: 0035-8711, DOI: 10.1093/mnras/stz440
Monthly Notices of the Royal Astronomical Society 485/2 2020-01-29
2019 Giuseppe Gnocchi, Andrea Maselli, Tiziano Abdelsalhin, Nicola Giacobbo, Michela Mapelli
Bounding alternative theories of gravity with multiband GW observations
published pages: , ISSN: 2470-0010, DOI: 10.1103/PhysRevD.100.064024
Physical Review D 100/6 2020-01-29
2019 Francesco Zappa, Sebastiano Bernuzzi, Francesco Pannarale, Michela Mapelli, Nicola Giacobbo
Black-Hole Remnants from Black-Hole–Neutron-Star Mergers
published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.123.041102
Physical Review Letters 123/4 2020-01-29
2019 Mattia Toffano, Michela Mapelli, Nicola Giacobbo, M Celeste Artale, Giancarlo Ghirlanda
The host galaxies of double compact objects across cosmic time
published pages: 4622-4631, ISSN: 0035-8711, DOI: 10.1093/mnras/stz2415
Monthly Notices of the Royal Astronomical Society 489/4 2020-01-29
2019 Yann Bouffanais, Michela Mapelli, Davide Gerosa, Ugo N. Di Carlo, Nicola Giacobbo, Emanuele Berti, Vishal Baibhav
Constraining the Fraction of Binary Black Holes Formed in Isolation and Young Star Clusters with Gravitational-wave Data
published pages: 25, ISSN: 1538-4357, DOI: 10.3847/1538-4357/ab4a79
The Astrophysical Journal 886/1 2020-01-29
2019 Ugo N Di Carlo, Nicola Giacobbo, Michela Mapelli, Mario Pasquato, Mario Spera, Long Wang, Francesco Haardt
Merging black holes in young star clusters
published pages: 2947-2960, ISSN: 0035-8711, DOI: 10.1093/mnras/stz1453
Monthly Notices of the Royal Astronomical Society 487/2 2020-01-29
2019 Mario Spera, Michela Mapelli, Nicola Giacobbo, Alessandro A Trani, Alessandro Bressan, Guglielmo Costa
Merging black hole binaries with the SEVN code
published pages: 889-907, ISSN: 0035-8711, DOI: 10.1093/mnras/stz359
Monthly Notices of the Royal Astronomical Society 485/1 2020-01-29

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