Tossing Black Hole Spin Axes

Abstract

The detection of double black hole (BH+BH) mergers provides a unique possibility to understand their physical properties and origin. To date, the LIGO-Virgo-KAGRA network of high-frequency gravitational wave observatories have announced the detection of more than 85 BH+BH merger events (Abbott et al. 2022a). An important diagnostic feature that can be extracted from the data is the distribution of effective inspiral spins of the BHs. This distribution is in clear tension with theoretical expectations from both an isolated binary star origin, which traditionally predicts close-to aligned BH component spins (Kalogera 2000; Farr et al. 2017), and formation via dynamical interactions in dense stellar environments that predicts a symmetric distribution of effective inspiral spins (Mandel & O'Shaughnessy 2010; Rodriguez et al. 2016b). Here it is demonstrated that isolated binary evolution can convincingly explain the observed data if BHs have their spin axis tossed during their formation process in the core collapse of a massive star, similarly to the process evidently acting in newborn neutron stars. BH formation without spin-axis tossing, however, has difficulties reproducing the observed data - even if alignment of spins prior to the second core collapse is disregarded. Based on simulations with only a minimum of assumptions, constrains from empirical data can be made on the spin magnitudes of the first- and second-born BHs, thereby serving to better understand massive binary star evolution prior to the formation of BHs.

18 pages, 11 figures, 1 table, ApJ accepted version (minor edits)

References in corpus (24)

• 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
• Swope Supernova Survey 2017a (SSS17a), the Optical Counterpart to a Gravitational Wave Source
• Tests of general relativity from timing the double pulsar
• A kilonova as the electromagnetic counterpart to a gravitational-wave source
• Light Curves of the Neutron Star Merger GW170817/SSS17a: Implications for R-Process Nucleosynthesis
• Observation of gravitational waves from two neutron star-black hole coalescences
• Formation of Double Neutron Star Systems
• Identification of strontium in the merger of two neutron stars
• Kilonovae
• Illuminating Black Hole Binary Formation Channels with Spins in Advanced LIGO
• One Channel to Rule Them All? Constraining the Origins of Binary Black Holes using Multiple Formation Pathways
• Distinguishing Spin-Aligned and Isotropic Black Hole Populations With Gravitational Waves
• Cygnus X-1 contains a 21-solar mass black hole -- implications for massive star winds
• Neutron star kicks by the gravitational tug-boat mechanism in asymmetric supernova explosions: progenitor and explosion dependence
• Common envelope ejection in massive binary stars - Implications for the progenitors of GW150914 and GW151226
• Lense-Thirring frame dragging induced by a fast-rotating white dwarf in a binary pulsar system
• The implications of high BH spins on the origin of BH-BH mergers
• No evidence that the majority of black holes in binaries have zero spin
• An alternative interpretation of GW190412 as a binary black hole merger with a rapidly spinning secondary
• GW190412 as a Third-Generation Black Hole Merger from a Super Star Cluster
• Long Gamma-Ray Burst Progenitors: Boundary Conditions and Binary Models
• Flipping spins in mass transferring binaries and origin of spin-orbit misalignment in binary black holes
• Impact of natal kicks on merger rates and spin-orbit misalignments of black hole -- neutron star mergers

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• Potential Subpopulations and Assembling Tendency of the Merging Black Holes
• The Lunar Gravitational-wave Antenna: Mission Studies and Science Case
• GW241011 and GW241110: Exploring Binary Formation and Fundamental Physics with Asymmetric, High-Spin Black Hole Coalescence
• Constraints on the contributions to the observed binary black hole population from individual evolutionary pathways in isolated binary evolution
• Dropping Anchor: Understanding the Populations of Binary Black Holes with Random and Aligned Spin Orientations
• Residual eccentricity as a systematic uncertainty on the formation channels of binary black holes
• Merging binary black holes formed through double-core evolution
• New constraints on the kinematic, relativistic and evolutionary properties of the PSR J1757$-$1854 double neutron star system
• Evidence for a black hole spin--orbit misalignment in the X-ray binary Cyg X-1
• Gravitational-wave Observations Suggest Most Black Hole Mergers Form in Triples
• Simulations of the progenitors of black hole-neutron star gravitational wave sources
• Symmetry breaking in merging binary black holes from young massive clusters and isolated binaries
• The Spin of a Newborn Black Hole: Swift J1728.9-3613
• Prompt stellar and binary black hole mergers in tight triples: Insights from chemically homogeneous evolution
• On the Astrophysical Origin of Binary Black Hole Subpopulations: A Tale of Three Channels?
• Analysis and simulations of binary black hole merger spins -- the question of spin-axis tossing at black hole formation
• Reassessing the Spin of Second-born Black Holes in Coalescing Binary Black Holes and Its Connection to the chi_eff-q Correlation
• Probing Spin-Orbit Resonances with the Binary Black Hole Population