Title
| The gravitational wave and short gamma-ray burst GW170817/SHB170817A |
Author(s)
| De Rujula, Alvaro (CERN ; Madrid, IFT) |
Publication
| 2022 |
Number of pages
| 10 |
In:
| Nuovo Cimento C 46 (2023) 5 |
In:
| 35th Rencontres de Physique de La Vallée d'Asoste (La Thuile 2022), La Thuile, Italy, 6 - 12 Mar 2022, pp.5 |
DOI
| 10.1393/ncc/i2023-23005-2
|
Subject category
| Astrophysics and Astronomy ; General Relativity and Cosmology |
Abstract
| This event, so far unique, beautifully confirmed the standard views on the gravitational waves produced by a merger of two neutron stars, but its electromagnetic multi-wavelenth observations disagreed with the numerous initial versions of the “standard fireball model(s)” of gamma ray bursts. Contrariwise, they provided strong evidence in favour of the “cannonball” model. Most uncontroversially, a cannonball was observed at radio wavelengths, with an overwhelming statistical significance (>17 σ), and travelling in the plane of the sky, as expected, at an average apparent superluminal velocity Vappapp ∼ 4c4c. |
Copyright/License
| CC-BY-4.0 |