A search for kilonova radio flares in a sample of Swift/BAT short GRBs
arXiv:2210.10675 · doi:10.3847/1538-4357/acc6c5
Abstract
The multi-messenger detection of GW170817 showed that binary neutron star (BNS) mergers are progenitors of (at least some) short gamma-ray bursts (GRBs), and that short GRB jets (and their afterglows) can have structures (and observational properties) more complex than predicted by the standard top-hat jet scenario. Indeed, the emission from the structured jet launched in GW170817 peaked in the radio band (cm wavelengths) at about 100 d since merger - a timescale much longer than the typical time span of radio follow-up observations of short GRBs. Moreover, radio searches for a potential late-time radio flare from the fast tail of the neutron-rich debris that powered the kilonova associated with GW170817 (AT2017gfo) have extended to even longer timescales (years after the merger). In light of this, here we present the results of an observational campaign targeting a sample of seven, years-old GRBs in the Swift/BAT sample with no redshift measurements and no promptly-identified X-ray counterpart. Our goal is to assess whether this sample of short GRBs could harbor nearby BNS mergers, searching for the late-time radio emission expected from their ejecta. We found one radio candidate counterpart for one of the GRBs in our sample, GRB111126A, though an origin related to emission from star formation or from an AGN in its host galaxy cannot be excluded without further observations.
arXiv comment11 pages, 3 figures, published in ApJ
References in corpus (72)
- GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
- The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance
- Multi-messenger Observations of a Binary Neutron Star Merger
- Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
- Origin of the heavy elements in binary neutron-star mergers from a gravitational wave event
- Swope Supernova Survey 2017a (SSS17a), the Optical Counterpart to a Gravitational Wave Source
- Short-Duration Gamma-Ray Bursts
- 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
- A kilonova as the electromagnetic counterpart to a gravitational-wave source
- The X-ray counterpart to the gravitational wave event GW 170817
- Calibrating Extinction-Free Star Formation Rate Diagnostics with 33GHz Free-Free Emission in NGC6946
- Short-Hard Gamma-Ray Bursts
- 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
- Active Galactic Nuclei: what's in a name?
- Optical emission from a kilonova following a gravitational-wave-detected neutron-star merger
- Superluminal motion of a relativistic jet in the neutron star merger GW170817
- 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 Chandra Source Catalog
- A Radio Counterpart to a Neutron Star Merger
- A Decade of Short-duration Gamma-ray Burst Broad-band Afterglows: Energetics, Circumburst Densities, and Jet Opening Angles
- Kilonovae
- The discovery of the electromagnetic counterpart of GW170817: kilonova AT 2017gfo/DLT17ck
- Binary Neutron Star Mergers: Mass Ejection, Electromagnetic Counterparts and Nucleosynthesis
- The 1% Concordance Hubble Constant
- The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/VIRGO GW170817. V. Rising X-ray Emission from an Off-Axis Jet
- Compact radio emission indicates a structured jet was produced by a binary neutron star merger
- Radio Remnants of Compact Binary Mergers - the Electromagnetic Signal that will follow the Gravitational Waves
- Late time afterglow observations reveal a collimated relativistic jet in the ejecta of the binary neutron star merger GW170817
- A Kilonova Following a Long-Duration Gamma-Ray Burst at 350 Mpc
- Using the Bright Ultra-Hard XMM-Newton Survey to define an IR selection of luminous AGN based on WISE colours
- Early Spectra of the Gravitational Wave Source GW170817: Evolution of a Neutron Star Merger
- 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
- The Locations of Short Gamma-ray Bursts as Evidence for Compact Object Binary Progenitors
- Electromagnetic Evidence that SSS17a is the Result of a Binary Neutron Star Merger
- A Deep Chandra X-ray Study of Neutron Star Coalescence GW170817
- The Dynamics of Binary Neutron Star Mergers and of GW170817
- Demographics of the Galaxies Hosting Short-duration Gamma-Ray Bursts
- The VLA-COSMOS 3 GHz Large Project: Multiwavelength counterparts and the composition of the faint radio population
- Off-axis emission of short gamma-ray bursts and the detectability of electromagnetic counterparts of gravitational wave detected binary mergers
- The Star Formation History of the Universe as Revealed by Deep Radio Observations
- A Strong Jet Signature in the Late-Time Lightcurve of GW170817
- A new method to separate star forming from AGN galaxies at intermediate redshift: The submillijansky radio population in the VLA-COSMOS survey
- Mass ejection from neutron star mergers: different components and expected radio signals
- The Host Galaxies of Short-Duration Gamma-Ray Bursts: Luminosities, Metallicities, and Star Formation Rates
- BLOBCAT: Software to Catalogue Flood-Filled Blobs in Radio Images of Total Intensity and Linear Polarization
- Synchrotron radiation from the fast tail of dynamical ejecta of neutron star mergers
- The WISE properties of complete samples of radio-loud AGN
- Radio Observations of the Hubble Deep Field South Region II: The 1.4 GHz Catalogue and Source Counts
- Off-Axis Emission of Short GRB Jets from Double Neutron Star Mergers and GRB 170817A
- Evidence for X-ray Emission in Excess to the Jet Afterglow Decay 3.5 yrs After the Binary Neutron Star Merger GW 170817: A New Emission Component
- Implications of the radio and X-ray emission that followed GW170817
- Testing the Magnetar Model via Late Time Radio Observations of Two Macronova Candidates
- Sensitive Search For Radio Variables And Transients In The Extended Chandra Deep-Field South
- Short gamma-ray bursts within 200 Mpc
- Continued radio observations of GW170817 3.5 years post-merger
- Observable Features of GW170817 Kilonova Afterglow
- Radio Constraints on Heavily-Obscured Star-Formation within Dark Gamma-Ray Burst Host Galaxies
- Dynamical ejecta synchrotron emission as possible contributor to the changing behaviour of GRB170817A
- A Late-time Radio Survey of Short GRBs at : New Constraints on the Remnants of Neutron Star Mergers
- Searching for the radio remnants of short duration gamma-ray bursts
- GW170817 4.5 years after merger: Dynamical ejecta afterglow constraints
- Radio Sources in the 2dF Galaxy Redshift Survey. I. Radio Source Populations
- Deep Hubble Space Telescope Observations of GW170817: Complete Light Curves and the Properties of the Galaxy Merger of NGC 4993
- Radio follow-up of gravitational wave triggers during Advanced LIGO O1
- From Neutrino- to Photon-Cooled in Three Years: Can Fallback Accretion Explain the X-ray Excess in GW170817?
- Late-time radio observations of the short GRB200522A: constraints on the magnetar model
- Radio Forensics Could Unmask Nearby Off-axis Gamma-ray Bursts
- On short GRBs similar to GRB 170817A detected by Fermi GBM
- Search for radio remnants of nearby off-axis Gamma-Ray Bursts in a sample of Swift/BAT events