The gravitational wave and short gamma-ray burst GW170817/SHB170817A

De Rújula, A. (2023) The gravitational wave and short gamma-ray burst GW170817/SHB170817A. Il nuovo cimento C, 46 (1). pp. 1-10. ISSN 1826-9885

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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 Vapp ∼ 4 c.

Item Type: Article
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 02 Feb 2023 13:36
Last Modified: 02 Feb 2023 13:36

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