Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/31601
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Nava, Lara | en_US |
dc.date.accessioned | 2022-03-16T11:17:52Z | - |
dc.date.available | 2022-03-16T11:17:52Z | - |
dc.date.issued | 2021 | en_US |
dc.identifier.issn | 2218-1997 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/31601 | - |
dc.description.abstract | Emission from Gamma-ray bursts is thought to be powered mainly by synchrotron radiation from energetic electrons. The same electrons might scatter these synchrotron seed photons to higher (>10 GeV) energies, building a distinct spectral component (synchrotron self-Compton, SSC). This process is expected to take place, but its relevance (e.g., the ratio between the SSC and synchrotron emitted power) is difficult to predict on the basis of current knowledge of physical conditions at GRB emission sites. Very high-energy radiation in GRBs can be produced also by other mechanisms, such as synchrotron itself (if PeV electrons are produced at the source), inverse Compton on external seed photons, and hadronic processes. Recently, after years of efforts, very high-energy radiation has been finally detected from at least four confirmed long GRBs by the Cherenkov telescopes H.E.S.S. and MAGIC. In all four cases, the emission has been recorded during the afterglow phase, well after the end of the prompt emission. In this work, I give an overview, accessible also to non-experts of the field, of the recent detections, theoretical implications, and future challenges, with a special focus on why very high-energy observations are relevant for our understanding of Gamma-ray bursts and which long-standing questions can be finally answered with the help of these observations. | en_US |
dc.language.iso | eng | en_US |
dc.title | Gamma-ray bursts at the highest energies | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3390/universe7120503 | en_US |
dc.identifier.scopus | 2-s2.0-85121431305 | en_US |
dc.identifier.url | https://www.mdpi.com/2218-1997/7/12/503/htm | en_US |
dc.relation.medium | ELETTRONICO | en_US |
dc.relation.volume | 7 | en_US |
dc.relation.issue | 12 | en_US |
dc.relation.firstpage | 503 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 1 | en_US |
dc.contributor.country | ITA | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | UNIVERSE | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.orcid | 0000-0001-5960-0455 | - |
crisitem.journal.journalissn | 2218-1997 | - |
crisitem.journal.ance | E230956 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
universe-07-00503.pdf | PDF editoriale | 6.95 MB | Adobe PDF | View/Open |
Page view(s)
30
checked on Apr 25, 2024
Download(s)
14
checked on Apr 25, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.