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SEARCHES FOR TIME-DEPENDENT NEUTRINO SOURCES WITH ICECUBE DATA FROM 2008 TO 2012
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2015 (English)In: Astrophysical Journal, ISSN 0004-637X, E-ISSN 1538-4357, Vol. 807, no 1, 46Article in journal (Refereed) Published
Abstract [en]

In this paper searches for flaring astrophysical neutrino sources and sources with periodic emission with the IceCube neutrino telescope are presented. In contrast to time-integrated searches, where steady emission is assumed, the analyses presented here look for a time-dependent signal of neutrinos using the information from the neutrino arrival times to enhance the discovery potential. A search was performed for correlations between neutrino arrival times and directions, as well as neutrino emission following time-dependent light curves, sporadic emission, or periodicities of candidate sources. These include active galactic nuclei, soft gamma-ray repeaters, supernova remnants hosting pulsars, microquasars, and X-ray binaries. The work presented here updates and extends previously published results to a longer period that covers 4 years. of data from 2008 April 5 to 2012 May 16, including the first year of operation of the completed 86 string detector. The analyses did not find any significant time-dependent point sources of neutrinos, and the results were used to set upper limits on the neutrino flux from source candidates.

Place, publisher, year, edition, pages
2015. Vol. 807, no 1, 46
Keyword [en]
astroparticle physics, binaries: general, BL Lacertae objects: general, galaxies: active, neutrinos, X-rays: binaries
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:uu:diva-260863DOI: 10.1088/0004-637X/807/1/46ISI: 000358945200046OAI: oai:DiVA.org:uu-260863DiVA: diva2:848642
Available from: 2015-08-25 Created: 2015-08-25 Last updated: 2017-12-04Bibliographically approved

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Boersma, David J.Botner, OlgaEuler, SebastianHallgren, AllanStröm, RickardTaavola, Henric

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