A Late-Time Galaxy-Targeted Search for the Radio Counterpart of GW190814

Abstract

GW190814 was a compact object binary coalescence detected in gravitational waves by Advanced LIGO and Advanced Virgo that garnered exceptional community interest due to its excellent localization and the uncertain nature of the binary's lighter-mass component (either the heaviest known neutron star, or the lightest known black hole). Despite extensive follow up observations, no electromagnetic counterpart has been identified. Here we present new radio observations of 75 galaxies within the localization volume at $\Delta t\approx 35-266$ days post-merger. Our observations cover $\sim 32$% of the total stellar luminosity in the final localization volume and extend to later timescales than previously-reported searches, allowing us to place the deepest constraints to date on the existence of a radio afterglow from a highly off-axis relativistic jet launched during the merger (assuming that the merger occurred within the observed area). For a viewing angle of $\sim 46^{\circ }$ (the best-fit binary inclination derived from the gravitational wave signal) and assumed electron and magnetic field energy fractions of ${\epsilon }_e=0.1$ and ${\epsilon }_B=0.01$, we can rule out a typical short gamma-ray burst-like Gaussian jet with isotropic-equivalent kinetic energy $2\times 10^{51}$ erg propagating into a constant density medium $n\gtrsim 0.01$ cm${}^{-3}$. These are the first limits resulting from a galaxy-targeted search for a radio counterpart to a gravitational wave event, and we discuss the challenges, and possible advantages, of applying similar search strategies to future events using current and upcoming radio facilities.

Accepted to ApJ; text and figures updated to match accepted version. 20 pages, 6 figures, 1 table

References in corpus (68)

• Array Programming with NumPy
• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Multi-messenger Observations of a Binary Neutron Star Merger
• Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
• GWTC-2: Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run
• GW190814: Gravitational Waves from the Coalescence of a 23 M${}_{\odot }$ Black Hole with a 2.6 M${}_{\odot }$ Compact Object
• An Ordinary Short Gamma-Ray Burst with Extraordinary Implications: Fermi-GBM Detection of GRB 170817A
• 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
• INTEGRAL Detection of the First Prompt Gamma-Ray Signal Coincident with the Gravitational Wave Event GW170817
• The X-ray counterpart to the gravitational wave event GW 170817
• 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
• Illuminating Gravitational Waves: A Concordant Picture of Photons from a Neutron Star Merger
• The Emergence of a Lanthanide-Rich Kilonova Following the Merger of Two Neutron Stars
• Optical emission from a kilonova following a gravitational-wave-detected neutron-star merger
• 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
• 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
• Particle acceleration in relativistic collisionless shocks: Fermi process at last?
• A Radio Counterpart to a Neutron Star Merger
• 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
• Kilonovae
• The discovery of the electromagnetic counterpart of GW170817: kilonova AT 2017gfo/DLT17ck
• The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/VIRGO GW170817. V. Rising X-ray Emission from an Off-Axis Jet
• The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/VIRGO GW170817. VI. Radio Constraints on a Relativistic Jet and Predictions for Late-Time Emission from the Kilonova Ejecta
• MASTER optical detection of the first LIGO/Virgo neutron stars merging GW170817
• A Deep Chandra X-ray Study of Neutron Star Coalescence GW170817
• Follow up of GW170817 and its electromagnetic counterpart by Australian-led observing programs
• J-GEM observations of an electromagnetic counterpart to the neutron star merger GW170817
• Radio Properties of Tidal Disruption Events
• Optical-Ultraviolet Tidal Disruption Events
• The optical afterglow of GW170817 at one year post-merger
• Radio Loud and Radio Quiet Quasars
• First Multimessenger Observations of a Neutron Star Merger
• Observations of the first electromagnetic counterpart to a gravitational wave source by the TOROS collaboration
• Brightening X-ray Emission from GW170817/GRB170817A: Further Evidence for an Outflow
• GRB170817A associated with GW170817: multifrequency observations and modeling of prompt gamma-ray emission
• A thousand days after the merger: continued X-ray emission from GW170817
• Gamma Ray Bursts Are Observed Off-Axis
• SubmilliJansky Transients in Archival Radio Observations
• Optical Follow-up of Gravitational-wave Events with Las Cumbres Observatory
• GROWTH on S190814bv: Deep Synoptic Limits on the Optical/Near-Infrared Counterpart to a Neutron Star-Black Hole Merger
• On the nature of GW190814 and its impact on the understanding of supranuclear matter
• The Properties of Short gamma-ray burst Jets Triggered by neutron star mergers
• Follow-up of the Neutron Star Bearing Gravitational Wave Candidate Events S190425z and S190426c with MMT and SOAR
• GW190814: Spin and equation of state of a neutron star companion
• Electrons' energy in GRB afterglows implied by radio peaks
• Long-term radio variability of AGN: flare characteristics
• The first six months of the Advanced LIGO's and Advanced Virgo's third observing run with GRANDMA
• Electromagnetic Signatures of Relativistic Explosions in AGN Disks
• The Radio Luminosity-Risetime Function of Core-Collapse Supernovae
• Discriminating between Neutron Stars and Black Holes with Imperfect Knowledge of the Maximum Neutron Star Mass
• Neutron Star Mergers in AGN Accretion Disks: Cocoon and Ejecta Shock Breakouts
• An ASKAP search for a radio counterpart to the first high-significance neutron star-black hole merger LIGO/Virgo S190814bv
• A Deep CFHT Optical Search for a Counterpart to the Possible Neutron Star -- Black Hole Merger GW190814
• Optimising gravitational waves follow-up using galaxies stellar mass
• Limits on the Electromagnetic Counterpart to S190814bv
• A search for optical and near-infrared counterparts of the compact binary merger GW190814
• Constraints on the Physical Properties of GW190814 through Simulations based on DECam Follow-up Observations by the Dark Energy Survey
• A Late-time Radio Survey of Short GRBs at $z<0.5$: New Constraints on the Remnants of Neutron Star Mergers
• Swift-XRT follow-up of gravitational wave triggers during the third aLIGO/Virgo observing run
• Caltech-NRAO Stripe 82 Survey (CNSS) Paper V: AGNs that transitioned to radio-loud state
• CHILES VERDES: Radio variability at an unprecedented depth and cadence in the COSMOS field
• An insight into the extragalactic transient and variable microJy radio sky across multiple decades
• The JAGWAR Prowls LIGO/Virgo O3 Paper I: Radio Search of a Possible Multi-Messenger Counterpart of the Binary Black Hole Merger Candidate S191216ap
• Galaxy-Targeting Approach Optimized for Finding the Radio Afterglows of Gravitational Wave Sources
• Variable Radio AGN at High Redshift Identified in the VLA Sky Survey

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• GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo During the Second Part of the Third Observing Run
• Multi-messenger observations of binary neutron star mergers in the O4 run
• Black hole-neutron star mergers are unlikely multi-messenger sources
• Target of Opportunity Observations of Gravitational Wave Events with Vera C. Rubin Observatory
• Prospects of discovering sub-solar primordial black holes using the stochastic gravitational wave background from third-generation detectors
• The Gravity Collective: A Search for the Electromagnetic Counterpart to the Neutron Star-Black Hole Merger GW190814
• DDOTI Observations of Gravitational-Wave Sources Discovered in O3
• Population Properties of Gravitational-Wave Neutron Star--Black Hole Mergers
• A comprehensive search for the radio counterpart of GW190814 with the Australian Square Kilometre Array Pathfinder
• The most probable host of CHIME FRB 190425A, associated with binary neutron star merger GW190425, and a late-time transient search
• A Systematic Exploration of Kilonova Candidates from Neutron Star Mergers During the Third Gravitational Wave Observing Run
• Probing Spin-Induced Quadrupole Moments in Precessing Compact Binaries
• Compact Objects in close orbits as Gravitational Wave Sources: Formation Scenarios and Properties
• SAGUARO: Time-domain Infrastructure for the Fourth Gravitational-wave Observing Run and Beyond
• Results from the Pan-STARRS Search for Kilonovae: Contamination by Massive Stellar Outbursts
• Searching for low radio-frequency gravitational wave counterparts in wide-field LOFAR data
• Physics beyond the Standard Model with the DSA-2000