uu.seUppsala universitets publikasjoner
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
An absence of neutrinos associated with cosmic-ray acceleration in gamma-ray bursts
Vise andre og tillknytning
2012 (engelsk)Inngår i: Nature, ISSN 0028-0836, E-ISSN 1476-4687, Vol. 484, nr 7394, s. 351-354Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Very energetic astrophysical events are required to accelerate cosmic rays to above 10(18) electronvolts. GRBs (c-ray bursts) have been proposed as possible candidate sources(1-3). In the GRB 'fireball' model, cosmic-ray acceleration should be accompanied by neutrinos produced in the decay of charged pions created in interactions between the high-energy cosmic-ray protons and gamma-rays(4). Previous searches for such neutrinos found none, but the constraints were weak because the sensitivity was at best approximately equal to the predicted flux(5-7). Here we report an upper limit on the flux of energetic neutrinos associated with GRBs that is at least a factor of 3.7 below the predictions(4,8-10). This implies either that GRBs are not the only sources of cosmic rays with energies exceeding 10(18) electronvolts or that the efficiency of neutrino production is much lower than has been predicted.

sted, utgiver, år, opplag, sider
2012. Vol. 484, nr 7394, s. 351-354
HSV kategori
Identifikatorer
URN: urn:nbn:se:uu:diva-174934DOI: 10.1038/nature11068ISI: 000302946500027OAI: oai:DiVA.org:uu-174934DiVA, id: diva2:529397
Tilgjengelig fra: 2012-05-30 Laget: 2012-05-30 Sist oppdatert: 2017-12-07bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Forlagets fulltekst

Personposter BETA

Botner, OlgaEngdegård, OlleHallgren, AllanPérez de los Heros, CarlosStröm, RickardTaavola, Henric

Søk i DiVA

Av forfatter/redaktør
Botner, OlgaEngdegård, OlleHallgren, AllanPérez de los Heros, CarlosStröm, RickardTaavola, Henric
Av organisasjonen
I samme tidsskrift
Nature

Søk utenfor DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 463 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf