Cannonball model diagnosis of the short gamma ray burst 170817A
arXiv:1712.09970
Abstract
The rich and complex data obtained from multi-wavelength observations of SHB170817A, the short hard gamma ray burst (SHB) associated with GW170817 --the first neutron stars merger event detected in gravitational waves (GWs)-- are analyzed in the framework of the cannonball model of SHBs. In this model a highly relativistic jet is launched by fall back matter on the nascent neutron star (or black hole) into a surrounding glory (light from the surrounding wind nebula of the binary neutron stars) which was present already before the merger. The SHB was produced by inverse Compton scattering of glory photons by the jet, which was viewed far off-axis. The fading glory, which produced the initial UVOIR afterglow, was powered by a neutron star remnant. It was overtaken by a late time X-ray, UVOIR and radio afterglow produced by synchrotron radiation from the decelerating jet in the interstellar medium of the host galaxy. If the radio afterglow of SHB170817A was indeed produced by the jet, it should display a superluminal motion relative to the SHB location, still detectable in VLA and VLBI radio observations.
11 pages 12 figures, revised after remarks by a referee
References in corpus (12)
- 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
- An Ordinary Short Gamma-Ray Burst with Extraordinary Implications: Fermi-GBM Detection of GRB 170817A
- 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
- A Radio Counterpart to a Neutron Star Merger
- A mildly relativistic wide-angle outflow in the neutron star merger GW170817
- Search for post-merger gravitational waves from the remnant of the binary neutron star merger GW170817
- The environment of the binary neutron star merger GW170817
- Hyperluminal Signatures in the Afterglows of Gamma-Ray Bursts 980425 and 030329