Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/28564
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Martone, R. | en_US |
dc.contributor.author | Guidorzi, C. | en_US |
dc.contributor.author | Margutti, R. | en_US |
dc.contributor.author | NICASTRO, LUCIANO | en_US |
dc.contributor.author | AMATI, LORENZO | en_US |
dc.contributor.author | Frontera, F. | en_US |
dc.contributor.author | MARONGIU, MARCO | en_US |
dc.contributor.author | ORLANDINI, MAURO | en_US |
dc.contributor.author | VIRGILLI, ENRICO | en_US |
dc.date.accessioned | 2020-11-26T12:34:40Z | - |
dc.date.available | 2020-11-26T12:34:40Z | - |
dc.date.issued | 2019 | en_US |
dc.identifier.issn | 0004-6361 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/28564 | - |
dc.description.abstract | Context. Fast radio bursts (FRBs) are millisecond-long bursts uniquely detected at radio frequencies. FRB 131104 is the only case for which a γ-ray transient positionally and temporally consistent was claimed. This high-energy transient had a duration of ∼400 s and a 15-150 keV fluence S<SUB>γ</SUB> ∼ 4 × 10<SUP>-6</SUP> erg cm<SUP>-2</SUP>. However, the association with the FRB is still debated. <BR /> Aims: We aim at testing the systematic presence of an associated transient high-energy counterpart throughout a sample of the FRB population. <BR /> Methods: We used an approach like that used in machine learning methodologies to accurately model the highly-variable Fermi/GBM instrumental background on a time interval comparable to the duration of the proposed γ-ray counterpart of FRB 131104. A possible γ-ray signal is then constrained considering sample average lightcurves. <BR /> Results: We constrain the fluence of the possible γ-ray signal in the 8-1000 keV band down to 6.4 × 10<SUP>-7</SUP> (7.1 × 10<SUP>-8</SUP>) erg cm<SUP>-2</SUP> for a 200-s (1-s) integration time. Furthermore, we found the radio-to-gamma fluence ratio to be η > 10<SUP>8</SUP> Jy ms erg<SUP>-1</SUP> cm<SUP>2</SUP>. <BR /> Conclusions: Our fluence limits exclude ∼94% of Fermi/GBM detected long gamma-ray bursts and ∼96% of Fermi/GBM detected short gamma-ray bursts. In addition, our limits on the radio-to-gamma fluence ratio point to a different emission mechanism from that of magnetar giant flares. Finally, we exclude a γ-ray counterpart as fluent as the one possibly associated with FRB 131104 to be a common feature of FRBs. | - |
dc.language.iso | eng | - |
dc.title | A cumulative search for hard X/γ-ray emission associated with fast radio bursts in Fermi/GBM data | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1051/0004-6361/201936284 | - |
dc.identifier.scopus | 2-s2.0-85074517105 | - |
dc.identifier.isi | 000515089800002 | - |
dc.identifier.url | https://www.aanda.org/articles/aa/abs/2019/11/aa36284-19/aa36284-19.html | - |
dc.relation.medium | STAMPA | - |
dc.relation.volume | 631 | - |
dc.relation.firstpage | A62 | - |
dc.relation.numberofpages | 8 | - |
dc.type.referee | REF_1 | - |
dc.description.numberofauthors | 9 | en_US |
dc.description.international | no | en_US |
dc.contributor.country | ITA | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | - |
dc.relation.journal | ASTRONOMY & ASTROPHYSICS | - |
dc.type.miur | 262 Articolo in rivista | en_US |
dc.identifier.adsbibcode | 2019A&A...631A..62M | - |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering | - |
dc.description.apc | no | - |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | - |
local.message.claim | 2021-10-02T02:03:42.503+0200|||rp09347|||submit_approve|||dc_contributor_author|||None | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 0004-6361 | - |
crisitem.journal.ance | E016240 | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | O.A. Cagliari | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.orcid | 0000-0001-8534-6788 | - |
crisitem.author.orcid | 0000-0001-5355-7388 | - |
crisitem.author.orcid | 0000-0002-5817-4009 | - |
crisitem.author.orcid | 0000-0003-0946-3151 | - |
crisitem.author.orcid | 0000-0003-2279-9119 | - |
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