Abstract
We investigate the expected high-energy neutrino fluence from internal shocks produced in the relativistic outflow of gamma-ray bursts. Previous model predictions have primarily focused on on-axis observations of uniform jets. Here, we present a generalization to account for arbitrary viewing angles and jet structures. Based on this formalism, we provide an improved scaling relation that expresses off-axis neutrino fluences in terms of on-axis model predictions. We also find that the neutrino fluence from structured jets can exhibit a strong angular dependence relative to that of gamma-rays and can be far more extended. We examine this behaviour in detail for the recent short gamma-ray burst GRB 170817A observed in coincidence with the gravitational wave event GW170817.
| Originalsprog | Engelsk |
|---|---|
| Tidsskrift | Monthly Notice of the Royal Astronomical Society |
| Vol/bind | 490 |
| Udgave nummer | 4 |
| Sider (fra-til) | 4935-4943 |
| ISSN | 0035-8711 |
| DOI | |
| Status | Udgivet - 1 dec. 2019 |
Emneord
- astro-ph.HE
- hep-ex
- hep-ph