The chemically homogeneous evolutionary channel for binary black hole mergers: rates and properties of gravitational-wave events detectable by advanced LIGO

By Selma de Mink, Ilya Mandel. 2016

298 citations recorded by the source corpus.

We explore the predictions for detectable gravitational-wave signals from merging binary black holes formed through chemically homogeneous evolution in massive short-period stellar binaries. We find that ∼500 events per year could be detected with advanced ground-based detectors operating at full sensitivity. We analyse the distribution of detectable events, and conclude that there is a very strong preference for detecting events with nearly equal components (mass ratio >0.66 at 90 per cent confidence in our default model) and high masses (total source-frame mass between 57 and 103 M⊙ at 90 per cent confidence). We consider multiple alternative variations to analyse the sensitivity to uncertainties in the evolutionary physics and cosmological parameters, and conclude that while the rates are sensitive to assumed variations, the mass distributions are robust predictions. Finally, we consider the recently reported results of the analysis of the first 16 double-coincident days of the O1 LIGO (Laser Interferometer Gravitational-wave Observatory) observing run, and find that this formation channel is fully consistent with the inferred parameters of the GW150914 binary black hole detection and the inferred merger rate.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/fb7435967ce0f604fc6e8eeeb43fe6adc0b9a6c0

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In Astronomy and Astrophysics

1. Michela Mapelli
2. N. Giacobbo
3. Ilya Mandel
4. Mario Spera
5. D. Holz
6. F. Antonini
7. F. Rasio
8. Maya Fishbach

Citations in the corpus

• Merging black hole binaries with the SEVN code (2018, background): “A BHB can form from the evolution of massive close stellar binaries (e.g. Tutukov et al. 1973; Bethe & Brown 1998; Belczynski et al. 2016a; de Mink & Mandel 2016; Giacobbo, Mapelli & Spera 2018; Mandel & de Mink 2016; Marchant et al. 2016; Mapelli & Giacobbo 2018) or from dynamical processes…”
• Most Black Holes Are Born Very Slowly Rotating (2019, background): “The only model of which we are aware that can produce such events in the face of efficient AM transport is the chemically homogeneous scenario (e.g., de Mink & Mandel 2016; Mandel & de Mink 2016; Marchant et al. 2017).”
• Evolutionary roads leading to low effective spins, high black hole masses, and O1/O2 rates for LIGO/Virgo binary black holes (2017, background): “…this conclusion was reached in the framework of the classical binary evolution that does not take into account homogeneous evolution of rapidly rotating stars that allows for the formation of BH-BH mergers in alternative ways (Marchant et al. 2016; Mandel & de Mink 2016; de Mink & Mandel 2016).”
• Constraints from Gravitational-wave Detections of Binary Black Hole Mergers on the 12C(α, γ)16O Rate (2020, background): “…including common-envelope evolution (Tutukov & Yungelson 1993; Dominik et al. 2012; Belczynski et al. 2016b), chemically homogeneous evolution (de Mink & Mandel 2016; Mandel & de Mink 2016; Marchant et al. 2016), and stars that interact in dynamic environments (Kulkarni et al. 1993; Portegies…”
• The spin of the second-born black hole in coalescing binary black holes (2018, background): “…phase (van den Heuvel et al. 2017; Inayoshi et al. 2017), or spend their whole lives in close orbits and evolve chemically homogeneously (de Mink & Mandel 2016; Marchant et al. 2016; Mandel & de Mink 2016; Song et al. 2016), and (ii) dynamical formation in globular clusters (Sigurdsson &…”
• Two populations of LIGO-Virgo black holes (2020, background): “This drives mixing currents inside the stars and results in chemically homogeneous evolution [93–96].”
• Binary Black Hole Population Properties Inferred from the First and Second Observing Runs of Advanced LIGO and Advanced Virgo (2018, background): “…2016; Mapelli et al. 2017; Stevenson et al. 2017b; Tauris et al. 2017; Chruslinska et al. 2018; Giacobbo & Mapelli 2018; Giacobbo et al. 2018; Kruckow et al. 2018; Mapelli & Giacobbo 2018) or via chemically homogeneous evolution(de Mink & Mandel 2016; Mandel & de Mink 2016; Marchant et al. 2016).”
• Double neutron stars: merger rates revisited (2017, background): “…X-ray binaries Liu, van Paradijs & van den Heuvel 2007) and account for the formation of merging double compact objects without dynamical interactions (e.g. Mapelli, Colpi & Zampieri 2009; Rodriguez, Chatterjee & Rasio 2016) or rapid stellar rotation (de Mink & Mandel 2016; Marchant et al. 2016).”
• Rates of compact object coalescences (2021, background): “Derivations of how to do such calculations are provided by, e.g., Belczynski et al. (2014) and de Mink and Mandel (2016); both analytical fits (e.g., Fishbach and Holz 2017) and numerical codes (e.g., Gerosa 2017; Team COMPAS 2021) are available.”
• GWTC-2.1: Deep extended catalog of compact binary coalescences observed by LIGO and Virgo during the first half of the third observing run (2021, background): “Such low values of the mass ratio are unusual in isolated binary evolution, especially for the chemically homogeneous evolution [251, 259] but also for the common-envelope scenario [235, 260–263].”
• Merging black holes in young star clusters (2019, background): “…2009; Dominik et al. 2012, 2013, 2015; Mapelli et al. 2013; Mennekens & Vanbeveren 2014; Tauris et al. 2015, 2017; de Mink & Belczynski 2015; de Mink & Mandel 2016; Marchant et al. 2016; Belczynski et al. 2016a; Chruslinska et al. 2018; Mapelli et al. 2017; Giacobbo et al. 2018; Giacobbo &…”
• Black Hole Mergers in Galactic Nuclei Induced by the Eccentric Kozai–Lidov Effect (2017, background): “These merging BH binaries may also be a result of isolated binary evolution in the galactic field due to special modes of stellar evolution and evolution in active galactic nuclei (Mandel & de Mink 2016; de Mink & Mandel 2016; Belczynski et al. 2016a; Marchant et al. 2016).”
• Merging black hole binaries: the effects of progenitor's metallicity, mass-loss rate and Eddington factor (2017, result): “This is at odds with models of BHB formation through chemically homogeneous evolution (Marchant et al. 2016; de Mink & Mandel 2016; Mandel & de Mink 2016), which predict the formation of nearly equal mass merging BHBs, but is consistent with the mass ratio of the four GW detections.”
• Presupernova Evolution and Explosive Nucleosynthesis of Rotating Massive Stars in the Metallicity Range −3 ≤ [Fe/H] ≤ 0 (2018, background): “Of course, such a result may change, even significantly, if the massive star evolves in a binary system (de Mink & Mandel 2016).”
• The progenitors of compact-object binaries: impact of metallicity, common envelope and natal kicks (2018, background): “…2007; Bogomazov et al. 2007; Dominik et al. 2012, 2013, 2015; Mennekens & Vanbeveren 2014; Tauris et al. 2015, 2017; de Mink & Belczynski 2015; de Mink & Mandel 2016; Marchant et al. 2016; Chruslinska et al. 2018; Mapelli et al. 2017; Giacobbo et al. 2018; Kruckow et al. 2018; Shao & Li 2018)…”