Fingerprints of binary black hole formation channels encoded in the mass and spin of merger remnants

Abstract

Binary black holes (BBHs) are thought to form in different environments, including the galactic field and (globular, nuclear, young and open) star clusters. Here, we propose a method to estimate the fingerprints of the main BBH formation channels associated with these different environments. We show that the metallicity distribution of galaxies in the local Universe along with the relative amount of mergers forming in the field or in star clusters determine the main properties of the BBH population. Our fiducial model predicts that the heaviest merger to date, GW170729, originated from a progenitor that underwent 2--3 merger events in a dense star cluster, possibly a galactic nucleus. The model predicts that at least one merger remnant out of 100 BBH mergers in the local Universe has mass $90<M_{\mathrm{rem}}/{\mathrm{M}}_{\odot }\le 110$, and one in a thousand can reach a mass as large as $M_{\mathrm{rem}}\gtrsim 250$ M${}_{\odot }$. Such massive black holes would bridge the gap between stellar-mass and intermediate-mass black holes. The relative number of low- and high-mass BBHs can help us unravelling the fingerprints of different formation channels. Based on the assumptions of our model, we expect that isolated binaries are the main channel of BBH merger formation if $\sim 70\%$ of the whole BBH population has remnants masses $<50$ M${}_{\odot }$, whereas $\gtrsim 6$\% of remnants with masses $>75$ M${}_{\odot }$ point to a significant sub-population of dynamically formed BBH binaries.

25 pages, 13 figures, 2 tables. Accepted for publication in the ApJ

References in corpus (39)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
• X-ray Properties of Black-Hole Binaries
• GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence
• Binary interaction dominates the evolution of massive stars
• Binary Population and Spectral Synthesis Version 2.1: construction, observational verification and new results
• Pulsational Pair-Instability Supernovae
• Gravitational waves from scattering of stellar-mass black holes in galactic nuclei
• Total recoil: the maximum kick from nonspinning black-hole binary inspiral
• Double Compact Objects III: Gravitational Wave Detection Rates
• The Effect of Pair-Instability Mass Loss on Black Hole Mergers
• Mind the gap: The location of the lower edge of the pair instability supernovae black hole mass gap
• MOCCA-SURVEY Database I: Coalescing Binary Black Holes Originating From Globular Clusters
• Very massive stars, pair-instability supernovae and intermediate-mass black holes with the SEVN code
• Merging black hole binaries: the effects of progenitor's metallicity, mass-loss rate and Eddington factor
• Distinguishing Spin-Aligned and Isotropic Black Hole Populations With Gravitational Waves
• Merging black holes in young star clusters
• Dynamics of stellar black holes in young star clusters with different metallicities - II. Black hole-black hole binaries
• The Evolution of Massive Helium Stars Including Mass Loss
• On the final spin from the coalescence of two black holes
• Hierarchical data-driven approach to fitting numerical relativity data for nonprecessing binary black holes with an application to final spin and radiated energy
• Where are LIGO's Big Black Holes?
• The cosmic merger rate of stellar black hole binaries from the Illustris simulation
• The Abundance Properties of Nearby Late-Type Galaxies.I. The Data
• Intermediate mass black holes in AGN disks II. Model predictions & observational constraints
• Stellar-mass black holes in young massive and open stellar clusters and their role in gravitational-wave generation
• Mergers of Stellar-Mass Black Holes in Nuclear Star Clusters
• AGN Disks Harden the Mass Distribution of Stellar-mass Binary Black Hole Mergers
• Stellar-mass black holes in young massive and open stellar clusters and their role in gravitational-wave generation II
• The properties of merging black holes and neutron stars across cosmic time
• Further insight into gravitational recoil
• Low metallicity and ultra-luminous X-ray sources in the Cartwheel galaxy
• Testing massive star evolution, star-formation history and feedback at low metallicity : Spectroscopic analysis of OB stars in the SMC Wing
• Globular Cluster Systems in Brightest Cluster Galaxies: A Near-Universal Luminosity Function?
• The numerical relativity breakthrough for binary black holes
• Detecting Supermassive Black Hole-Induced Binary Eccentricity Oscillations with LISA
• Constraining the Black Hole Initial Mass Function with LIGO/VIRGO Observations
• The difference in metallicity distribution functions of halo stars and globular clusters as a function of galaxy type: A tracer of globular cluster formation and evolution
• Evolution and Spectral Response of a Steam Atmosphere for Early Earth with a coupled climate-interior model

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• MOCCA SURVEY Database I: Binary Black Hole Mergers from Globular Clusters with Intermediate Mass Black Holes
• Stellar-mass black holes in young massive and open stellar clusters V: comparisons with LIGO-Virgo merger rate densities
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