Search for Black Hole Merger Families
arXiv:2011.06591 · doi:10.3847/2041-8213/abd721
Abstract
The origin, environment, and evolution of stellar-mass black hole binaries are still a mystery. One of the proposed binary formation mechanisms is manifest in dynamical interactions between multiple black holes. A resulting framework of these dynamical interactions is the so-called hierarchical triple merger scenario, which happens when three black holes become gravitationally bound, causing two successive black hole mergers to occur. In such successive mergers, the black holes involved are directly related to each other, and hence this channel can be directly tested from the properties of the detected binary black hole mergers. Here we present a search for hierarchical triple mergers among events within the GWTC-1 and GWTC-2 catalogs of LIGO/Virgo, the eccentric localization of GW190521 and those found by the IAS-Princeton group. The search includes improved statistical quantification that also accounts for black hole spins. We perform our analysis for different upper bounds on the mass distribution of first generation BHs. Our results demonstrate the importance of the mass distributions' properties for constraining the hierarchical merger scenario. We present the individually significant merger pairs. The search yields interesting candidate families and hints of its future impact.
4 figures, 7 pages without references
References in corpus (22)
- Advanced Virgo: a 2nd generation interferometric gravitational wave detector
- Primordial Black Holes as Dark Matter
- Pulsational Pair-Instability Supernovae
- Properties and astrophysical implications of the 150 Msun binary black hole merger GW190521
- Gravitational waves from scattering of stellar-mass black holes in galactic nuclei
- Double Compact Objects III: Gravitational Wave Detection Rates
- Candidate Electromagnetic Counterpart to the Binary Black Hole Merger Gravitational Wave Event S190521g
- MOCCA-SURVEY Database I: Coalescing Binary Black Holes Originating From Globular Clusters
- Illuminating Black Hole Binary Formation Channels with Spins in Advanced LIGO
- Alignment of the spins of supermassive black holes prior to coalescence
- Lidov-Kozai Cycles with Gravitational Radiation: Merging Black Holes in Isolated Triple Systems
- A Highly Spinning and Aligned Binary Black Hole Merger in the Advanced LIGO First Observing Run
- Intermediate mass black holes in AGN disks II. Model predictions & observational constraints
- AGN Disks Harden the Mass Distribution of Stellar-mass Binary Black Hole Mergers
- Searching for Eccentricity: Signatures of Dynamical Formation in the First Gravitational-Wave Transient Catalogue of LIGO and Virgo
- Black hole mergers from quadruples
- Orbital eccentricities in primordial black holes binaries
- Foundations of multiple black hole evolutions
- Accretion Disk Assembly During Common Envelope Evolution: Implications for Feedback and LIGO Binary Black Hole Formation
- Black Hole Binaries in Galactic Nuclei and Gravitational Wave Sources
- Close encounters of three black holes
- GW170817A as a Hierarchical Black Hole Merger