A brief overview of black hole-neutron star mergers

Abstract

Of the three main types of binaries detectable through ground-based gravitational wave observations, black hole-neutron star (BHNS) mergers remain the most elusive. While candidates BHNS exist in the triggers released during the third observing run of the Advanced LIGO/Virgo collaboration, no detection has been confirmed so far. As for binary neutron star systems, BHNS binaries allow us to explore a wide range of physical processes, including the neutron star equation of state, nucleosynthesis, stellar evolution, high-energy astrophysics, and the expansion of the Universe. Here, we review some of the main features of BHNS systems: the distinction between disrupting and non-disrupting binaries, the types of outflows that BHNS mergers can produce, and the information that can be extracted from the observation of their gravitational wave and electromagnetic signals. We also emphasize that for the most likely binary parameters, BHNS mergers seem less likely to power electromagnetic signals than binary neutron star systems. Finally, we discuss some of the issues that still limit our ability to model and interpret electromagnetic signals from BHNS binaries.

Accepted by Frontiers Astronomy and Space Sciences, invited review for the Research Topic "Gravitational Waves: A New Window to the Universe"

References in corpus (34)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Shapiro delay measurement of a two solar mass neutron star
• A Massive Pulsar in a Compact Relativistic Binary
• Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
• PSR J0030+0451 Mass and Radius from NICER Data and Implications for the Properties of Neutron Star Matter
• A NICER View of PSR J0030+0451: Millisecond Pulsar Parameter Estimation
• Constraining neutron star tidal Love numbers with gravitational wave detectors
• A gravitational-wave standard siren measurement of the Hubble constant
• Swope Supernova Survey 2017a (SSS17a), the Optical Counterpart to a Gravitational Wave Source
• The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/VIRGO GW170817. II. UV, Optical, and Near-IR Light Curves and Comparison to Kilonova Models
• Spectroscopic identification of r-process nucleosynthesis in a double neutron star merger
• Light Curves of the Neutron Star Merger GW170817/SSS17a: Implications for R-Process Nucleosynthesis
• The Combined Ultraviolet, Optical, and Near-Infrared Light Curves of the Kilonova Associated with the Binary Neutron Star Merger GW170817: Unified Data Set, Analytic Models, and Physical Implications
• Swift and NuSTAR observations of GW170817: detection of a blue kilonova
• The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/VIRGO GW170817. IV. Detection of Near-infrared Signatures of r-process Nucleosynthesis with Gemini-South
• The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/VIRGO GW170817. III. Optical and UV Spectra of a Blue Kilonova From Fast Polar Ejecta
• Neutrino signatures and the neutrino-driven wind in Binary Neutron Star Mergers
• Modeling the dynamics of tidally-interacting binary neutron stars up to merger
• Black Hole-Neutron Star Mergers: Disk Mass Predictions
• Towards models of gravitational waveforms from generic binaries: A simple approximate mapping between precessing and non-precessing inspiral signals
• A Highly Spinning and Aligned Binary Black Hole Merger in the Advanced LIGO First Observing Run
• Post-merger evolution of a neutron star-black hole binary with neutrino transport
• Relativistic simulations of black hole-neutron star coalescence: the jet emerges
• Evolving black hole-neutron star binaries in general relativity using pseudospectral and finite difference methods
• Relativistic Simulations of Black Hole-Neutron Star Mergers: Effects of black-hole spin
• Black hole-neutron star mergers at realistic mass ratios: Equation of state and spin orientation effects
• The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/VIRGO GW170817. VII. Properties of the Host Galaxy and Constraints on the Merger Timescale
• Phase transitions and He-synthesis driven winds in neutrino cooled accretion disks: prospects for late flares in short gamma-ray bursts
• Black hole-neutron star binary merger: Dependence on black hole spin orientation and equations of state
• GROWTH on S190814bv: Deep Synoptic Limits on the Optical/Near-Infrared Counterpart to a Neutron Star-Black Hole Merger
• Mergers of Magnetized Neutron Stars with Spinning Black Holes: Disruption, Accretion and Fallback
• Implications of the search for optical counterparts during the first six months of the Advanced LIGO's and Advanced Virgo's third observing run: possible limits on the ejecta mass and binary properties
• Dynamical ejecta from precessing neutron star-black hole mergers with a hot, nuclear-theory based equation of state
• Gravitational waveforms from SpEC simulations : neutron star-neutron star and low-mass black hole-neutron star binaries

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• The Science of the Einstein Telescope
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• Nucleosynthesis and observation of the heaviest elements
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• Applications of physics informed neural operators
• Multimessenger Binary Mergers Containing Neutron Stars: Gravitational Waves, Jets, and $\mathbf{\gamma }$-Ray Bursts
• Leveraging gravitational-wave memory to distinguish neutron star--black hole binaries from black hole binaries
• Numerical-Relativity-Informed Effective-One-Body model for Black-Hole-Neutron-Star Mergers with Higher Modes and Spin Precession
• Resonant Shattering Flares in Black Hole-Neutron Star and Binary Neutron Star Mergers
• Evidence for two distinct populations of kilonova-associated Gamma Ray Bursts
• Black hole-neutron star coalescence: effects of the neutron star spin on jet launching and dynamical ejecta mass
• H.E.S.S. follow-up observations of Binary Black Hole Coalescence events during the second and third Gravitational Waves observing runs of Advanced LIGO and Advanced Virgo
• First eccentric inspiral-merger-ringdown analysis of neutron star-black hole mergers
• Large Eddy Simulations of Magnetized Mergers of Black Holes and Neutron Stars
• Multi-messenger prospects for black hole - neutron star mergers in the O4 and O5 runs
• Chaos in Inhomogeneous Neutrino Fast Flavor Instability
• Prospects of Gravitational Wave Follow-up Through a Wide-field Ultra-violet Satellite: a Dorado Case Study
• Constraining neutron star radii in black hole-neutron star mergers from their electromagnetic counterparts
• Simulating neutron stars with a flexible enthalpy-based equation of state parametrization in SpECTRE
• Mechanisms for high spin in black-hole neutron-star binaries and kilonova emission: inheritance and accretion
• Multi-messenger observations in the Einstein Telescope era: binary neutron star and black hole - neutron star mergers
• Late-time non-thermal emission from mildly relativistic tidal ejecta of compact objects merger
• Searching for Gravitational-Wave Counterparts using the Transiting Exoplanet Survey Satellite
• Methods for relativistic self-gravitating fluids: From binary neutron stars to black hole-disks and magnetized rotating neutron stars
• Rates and beaming angles of GRBs associated with compact binary coalescences
• Black Hole-Neutron Star Binaries near Neutron Star Disruption Limit in the Mass Regime of Event GW230529
• Measurability of neutron star tidal deformability from merging neutron star-black hole binaries
• Chaotic orbital dynamics of pulsating stars around black holes surrounded by dark matter halos
• Study on Gravitational Waves from Binary Mergers and Constraints on the Hubble Parameter
• Gravitational physics in the context of Indian astronomy: A vision document
• Neutrinos in colliding neutron stars and black holes
• Modelling the formation of the first two neutron star-black hole mergers, GW200105 and GW200115: metallicity, chirp masses and merger remnant spins
• Early Warning From Eccentric Compact Binaries: Template Initialization And Sub-dominant Mode Effects