IceCube sensitivity for low-energy neutrinos from nearby supernovae

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dc.contributor.authorSantander, Marcos
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.date.accessioned2019-07-03T17:29:13Z
dc.date.available2019-07-03T17:29:13Z
dc.date.issued2011-11-21
dc.description.abstractThis paper describes the response of the IceCube neutrino telescope located at the geographic south pole to outbursts of MeV neutrinos from the core collapse of nearby massive stars. IceCube was completed in December 2010 forming a lattice of 5160 photomultiplier tubes that monitor a volume of ~1 km³ in the deep Antarctic ice for particle induced photons. The telescope was designed to detect neutrinos with energies greater than 100 GeV. Owing to subfreezing ice temperatures, the photomultiplier dark noise rates are particularly low. Hence IceCube can also detect large numbers of MeV neutrinos by observing a collective rise in all photomultiplier rates on top of the dark noise. With 2 ms timing resolution, IceCube can detect subtle features in the temporal development of the supernova neutrino burst. For a supernova at the galactic center, its sensitivity matches that of a background-free megaton-scale supernova search experiment. The sensitivity decreases to 20 standard deviations at the galactic edge (30 kpc) and 6 standard deviations at the Large Magellanic Cloud (50 kpc). IceCube is sending triggers from potential supernovae to the Supernova Early Warning System. The sensitivity to neutrino properties such as the neutrino hierarchy is discussed, as well as the possibility to detect the neutronization burst, a short outbreak of ν_e's released by electron capture on protons soon after collapse. Tantalizing signatures, such as the formation of a quark star or a black hole as well as the characteristics of shock waves, are investigated to illustrate IceCube’s capability forsupernova detection.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.citationAbbasi, R., et al. (2011): IceCube Sensitivity for Low-Energy Neutrinos from Nearby Supernovae. Astronomy and Astrophysics, 535(A&A).DOI: https://doi.org/10.1051/0004-6361/201117810
dc.identifier.doi10.1051/0004-6361/201117810
dc.identifier.urihttp://ir.ua.edu/handle/123456789/5897
dc.languageEnglish
dc.language.isoen_US
dc.publisherEDP Sciences
dc.subjectneutrinos
dc.subjectsupernovae: general
dc.subjectinstrumention: detectors
dc.subjectEQUATION-OF-STATE
dc.subjectCORE-COLLAPSE
dc.subjectSIGNAL
dc.subjectWATER
dc.subjectBURST
dc.subjectDETECTOR
dc.subjectICE
dc.subjectEXPLOSIONS
dc.subjectSCATTERING
dc.subjectSEARCH
dc.subjectAstronomy & Astrophysics
dc.titleIceCube sensitivity for low-energy neutrinos from nearby supernovaeen_US
dc.typetext
dc.typeArticle

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