Improvements in Gravitational-Wave Sky Localization with Expanded Networks of Interferometers

Abstract

A milestone of multi-messenger astronomy has been achieved with the detection of gravitational waves from a binary neutron star merger accompanied by observations of several associated electromagnetic counterparts. Joint observations can reveal details of the engines that drive the electromagnetic and gravitational-wave emission. However, locating and identify an electromagnetic counterparts to a gravitational-wave event is heavily reliant on localization of the source through gravitational-wave information. We explore the sky localization of a simulated set of neutron star mergers as the worldwide network of gravitational-wave detectors evolves through the next decade, performing the first such study for neutron star -- black hole binary sources. Currently, three detectors are observing with additional detectors in Japan and India expected to become operational in the coming years. With three detectors, we recover a median neutron star -- black hole binary sky localization of 60 deg${}^2$ at the 90\% credible level. As all five detectors become operational, sources can be localized to a median of 11 deg${}^2$ on the sky.

arXiv comment8 pages, 5 figures, accepted in ApJL

References in corpus (48)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Advanced Virgo: a 2nd generation interferometric gravitational wave detector
• Multi-messenger Observations of a Binary Neutron Star Merger
• Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
• Advanced LIGO
• GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence
• Characterization of the LIGO detectors during their sixth science run
• Exploring the Sensitivity of Next Generation Gravitational Wave Detectors
• A gravitational-wave standard siren measurement of the Hubble constant
• The Dark Energy Camera
• Interferometer design of the KAGRA gravitational wave detector
• Robust parameter estimation for compact binaries with ground-based gravitational-wave observations using the LALInference software library
• A kilonova as the electromagnetic counterpart to a gravitational-wave source
• A simple model of complete precessing black-hole-binary gravitational waveforms
• Use and Abuse of the Fisher Information Matrix in the Assessment of Gravitational-Wave Parameter-Estimation Prospects
• The Mass Distribution of Stellar-Mass Black Holes
• What is the Most Promising Electromagnetic Counterpart of a Neutron Star Binary Merger?
• BlackCAT: A catalogue of stellar-mass black holes in X-ray transients
• Analysis Framework for the Prompt Discovery of Compact Binary Mergers in Gravitational-wave Data
• Rapid Bayesian position reconstruction for gravitational-wave transients
• Localization and broadband follow-up of the gravitational-wave transient GW150914
• Estimating the Contribution of Dynamical Ejecta in the Kilonova Associated with GW170817
• Identifying Elusive Electromagnetic Counterparts to Gravitational Wave Mergers: an end-to-end simulation
• Eight New Millisecond Pulsars in NGC 6440 and NGC 6441
• Upper limits on the rates of binary neutron star and neutron-star--black-hole mergers from Advanced LIGO's first observing run
• The First Two Years of Electromagnetic Follow-Up with Advanced LIGO and Virgo
• Source localization with an advanced gravitational wave detector network
• Parameter estimation for binary neutron-star coalescences with realistic noise during the Advanced LIGO era
• The Origin of Black Hole Spin in Galactic Low-Mass X-ray Binaries
• Geometrical Expression for the Angular Resolution of a Network of Gravitational-Wave Detectors
• Gravitational-Wave Astronomy with Inspiral Signals of Spinning Compact-Object Binaries
• Distance measures in gravitational-wave astrophysics and cosmology
• Basic Parameter Estimation of Binary Neutron Star Systems by the Advanced LIGO/Virgo Network
• Estimating parameters of coalescing compact binaries with a detector network including LIGO Australia
• Estimating parameters of coalescing compact binaries with proposed advanced detector networks
• Gravitational-wave detectability of equal-mass black-hole binaries with aligned spins
• Localizing compact binary inspirals on the sky using ground-based gravitational wave interferometers
• Parameter estimation on gravitational waves from neutron-star binaries with spinning components
• A Comprehensive Study of Detectability and Contamination in Deep Rapid Optical Searches for Gravitational Wave Counterparts
• Prospects for joint gravitational-wave and electromagnetic observations of neutron-star--black-hole coalescing binaries
• Degeneracies in Sky Localisation Determination from a Spinning Coalescing Binary through Gravitational Wave Observations: a Markov-Chain Monte-Carlo Analysis for two Detectors
• Application of asymptotic expansions for maximum likelihood estimators' errors to gravitational waves from binary mergers: the network case
• Volumetric Survey Speed: A Figure of Merit for Transient Surveys
• Finding the One: Identifying the Host Galaxies of Gravitational-Wave Sources
• Prospects for joint observations of gravitational waves and gamma rays from merging neutron star binaries
• Astrophysical Prior Information and Gravitational-wave Parameter Estimation
• How would GW150914 look with future GW detector networks?
• Global Optimization for Future Gravitational Wave Detectors' Sites

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• Pinpointing coalescing binary neutron star sources with the IGWN, including LIGO-Aundha
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