Constraints on high-energy neutrino emission from SN 2008D

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dc.contributor.authorSantander, Marcos
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.date.accessioned2019-07-02T20:43:20Z
dc.date.available2019-07-02T20:43:20Z
dc.date.issued2011-01-20
dc.description.abstractSN 2008D, a core collapse supernova at a distance of 27 Mpc, was serendipitously discovered by the Swift satellite through an associated X-ray flash. Core collapse supernovae have been observed in association with long gamma-ray bursts and X-ray flashes and a physical connection is widely assumed. This connection could imply that some core collapse supernovae possess mildly relativistic jets in which high-energy neutrinos are produced through proton-proton collisions. The predicted neutrino spectra would be detectable by Cherenkov neutrino detectors like IceCube. A search for a neutrino signal in temporal and spatial correlation with the observed X-ray flash of SN 2008D was conducted using data taken in 2007–2008 with 22 strings of the IceCube detector. Events were selected based on a boosted decision tree classifier trained with simulated signal and experimental background data. The classifier was optimized to the position and a “soft jet” neutrino spectrum assumed for SN 2008D. Using three search windows placed around the X-ray peak, emission time scales from 100–10 000 s were probed. No events passing the cuts were observed in agreement with the signal expectation of 0.13 events. Upper limits on the muon neutrino flux from core collapse supernovae were derived for different emission time scales and the principal model parameters were constrained. While no meaningful limits can be given in the case of an isotropic neutrino emission, the parameter space for a jetted emission can be constrained. Future analyses with the full 86 string IceCube detector could detect up to ~100 events for a core-collapse supernova at 10 Mpc according to the soft jet model.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.citationAbbasi, R., et al. (2011): Constraints on High-energy Neutrino Emission from SN 2008D. Astronomy and Astrophysics, 527(A&A). DOI: https://doi.org/10.1051/0004-6361/201015770
dc.identifier.doi10.1051/0004-6361/201015770
dc.identifier.urihttp://ir.ua.edu/handle/123456789/5878
dc.languageEnglish
dc.language.isoen_US
dc.publisherEDP Sciences
dc.subjectsupernovae: individual: SN 2008D
dc.subjectneutrinos
dc.subjectastroparticle physics
dc.subjectGAMMA-RAY BURST
dc.subjectSUPERNOVA
dc.subjectJET
dc.subjectAstronomy & Astrophysics
dc.titleConstraints on high-energy neutrino emission from SN 2008Den_US
dc.typetext
dc.typeArticle

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