Astro2020 Science White Paper: Radio Counterparts of Compact Object Mergers in the Era of Gravitational-Wave Astronomy
arXiv:1903.10589
Abstract
GHz radio astronomy has played a fundamental role in the recent dazzling discovery of GW170817, a neutron star (NS)-NS merger observed in both gravitational waves (GWs) and light at all wavelengths. Here we show how the expected progress in sensitivity of ground-based GW detectors over the next decade calls for U.S.-based GHz radio arrays to be improved beyond current levels. We discuss specifically how several new scientific opportunities would emerge in multi-messenger time-domain astrophysics if a next generation GHz radio facility with sensitivity and resolution better than the current Jansky Very Large Array (VLA) were to work in tandem with ground-based GW detectors. These opportunities include probing the properties, structure, and size of relativistic jets and wide-angle ejecta from NS-NS mergers, as well as unraveling the physics of their progenitors via host galaxy studies.
arXiv comment8 pages, 5 figures, Submitted to the Astro2020 Decadal Survey
References in corpus (25)
- 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
- GWTC-1: A Gravitational-Wave Transient Catalog of Compact Binary Mergers Observed by LIGO and Virgo during the First and Second Observing Runs
- Gamma-Ray Bursts
- 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
- Superluminal motion of a relativistic jet in the neutron star merger GW170817
- Effect of a High Opacity on the Light Curves of Radioactively Powered Transients from Compact Object Mergers
- A Radio Counterpart to a Neutron Star Merger
- The discovery of the electromagnetic counterpart of GW170817: kilonova AT 2017gfo/DLT17ck
- A mildly relativistic wide-angle outflow in the neutron star merger GW170817
- Late time afterglow observations reveal a collimated relativistic jet in the ejecta of the binary neutron star merger GW170817
- The Locations of Short Gamma-ray Bursts as Evidence for Compact Object Binary Progenitors
- A Decline in the X-ray through Radio Emission from GW170817 Continues to Support an Off-Axis Structured Jet
- Off-axis emission of short gamma-ray bursts and the detectability of electromagnetic counterparts of gravitational wave detected binary mergers
- The environment of the binary neutron star merger GW170817
- The polarisation of afterglow emission reveals GRB jet structure
- A turnover in the radio light curve of GW170817
- A Strong Jet Signature in the Late-Time Lightcurve of GW170817
- Binary compact object coalescence rates: The role of elliptical galaxies
- Afterglow Imaging and Polarization of Misaligned Structured GRB Jets and Cocoons: Breaking the Degeneracy in GRB 170817A
- Deducing the Lifetime of Short Gamma-Ray Burst Progenitors from Host Galaxy Demography
- The effects of host galaxy properties on merging compact binaries detectable by LIGO
- Welcome to the Multi-Messenger Era! Lessons from a Neutron Star Merger and the Landscape Ahead
- Another short-burst host galaxy with an optically obscured high star formation rate: The case of GRB 071227