Please use this identifier to cite or link to this item:
https://hdl.handle.net/2445/221241
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cerruti, Matteo | - |
dc.contributor.author | Molina, Edgar | - |
dc.contributor.author | Paredes i Poy, Josep Maria | - |
dc.contributor.author | Ribó Gomis, Marc | - |
dc.date.accessioned | 2025-05-27T17:21:43Z | - |
dc.date.available | 2025-05-27T17:21:43Z | - |
dc.date.issued | 2022-04-14 | - |
dc.identifier.issn | 2397-3366 | - |
dc.identifier.uri | https://hdl.handle.net/2445/221241 | - |
dc.description.abstract | Classical novae are cataclysmic binary star systems in which the matter of a companion star is accreted on a white dwarf<sup>1,2</sup>. Accumulation of hydrogen in a layer eventually causes a thermonuclear explosion on the surface of the white dwarf<sup>3</sup>, brightening the white dwarf to ~10<sup>5</sup> solar luminosities and triggering ejection of the accumulated matter. Novae provide the extreme conditions required to accelerate particles, electrons or protons, to high energies. Here we present the detection of gamma rays by the MAGIC telescopes from the 2021 outburst of RS Ophiuchi, a recurrent nova with a red giant companion, which allowed us to accurately characterize the emission from a nova in the 60 GeV to 250 GeV energy range. The theoretical interpretation of the combined Fermi LAT and MAGIC data suggests that protons are accelerated to hundreds of gigaelectronvolts in the nova shock. Such protons should create bubbles of enhanced cosmic ray density, of the order of 10 pc, from the recurrent novae. | - |
dc.format.extent | 1 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Springer Nature | - |
dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1038/s41550-022-01640-z | - |
dc.relation.ispartof | Nature Astronomy, 2022, vol. 6, num.6, p. 689 | - |
dc.relation.uri | https://doi.org/10.1038/s41550-022-01640-z | - |
dc.rights | (c) M. Cerruti et al., 2022 | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Astrofísica | - |
dc.subject.classification | Raigs gamma | - |
dc.subject.classification | Protons | - |
dc.subject.other | Astrophysics | - |
dc.subject.other | Gamma rays | - |
dc.subject.other | Protons | - |
dc.title | Proton acceleration in thermonuclear nova explosions revealed by gamma rays | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 747471 | - |
dc.date.updated | 2025-05-27T17:21:44Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
857600.pdf | 2.72 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.