Searches for periodic neutrino emission from binary systems with 22 and 40 strings of IceCube

In this paper, we present the results of searches for periodic neutrino emission from a catalog of binary systems. Such modulation, observed in the photon flux, would be caused by the geometry of these systems. In the analysis, the period is fixed by these photon observations, while the phase and du...

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Main Authors: Abbasi, R, Abdou, Y, Abu-Zayyad, T, Ackermann, M, Adams, J, Aguilar, J, Ahlers, M, Allen, M, Altmann, D, Andeen, K, Auffenberg, J, Bai, X, Baker, M, Barwick, S, Bay, R, Bazo Alba, J, Beattie, K, Beatty, J, Bechet, S, Becker, J, Becker, K, Benabderrahmane, M, Benzvi, S, Berdermann, J, Berghaus, P
Format: Journal article
Language:English
Published: 2012
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author Abbasi, R
Abdou, Y
Abu-Zayyad, T
Ackermann, M
Adams, J
Aguilar, J
Ahlers, M
Allen, M
Altmann, D
Andeen, K
Auffenberg, J
Bai, X
Baker, M
Barwick, S
Bay, R
Bazo Alba, J
Beattie, K
Beatty, J
Bechet, S
Becker, J
Becker, K
Benabderrahmane, M
Benzvi, S
Berdermann, J
Berghaus, P
author_facet Abbasi, R
Abdou, Y
Abu-Zayyad, T
Ackermann, M
Adams, J
Aguilar, J
Ahlers, M
Allen, M
Altmann, D
Andeen, K
Auffenberg, J
Bai, X
Baker, M
Barwick, S
Bay, R
Bazo Alba, J
Beattie, K
Beatty, J
Bechet, S
Becker, J
Becker, K
Benabderrahmane, M
Benzvi, S
Berdermann, J
Berghaus, P
author_sort Abbasi, R
collection OXFORD
description In this paper, we present the results of searches for periodic neutrino emission from a catalog of binary systems. Such modulation, observed in the photon flux, would be caused by the geometry of these systems. In the analysis, the period is fixed by these photon observations, while the phase and duration of the neutrino emission are treated as free parameters to be fit with the data. If the emission occurs during 20% or less of the total period, this analysis achieves better sensitivity than a time-integrated analysis. We use the IceCube data taken from 2007 May 31 to 2008 April 5 with its 22 string configuration and from 2008 April 5 to 2009 May 20 with its 40 string configuration. No evidence for neutrino emission is found, with the strongest excess occurring for CygnusX-3 at 2.1σ significance after accounting for trials. Neutrino flux upper limits for both periodic and time-integrated emission are provided. © 2012. The American Astronomical Society. All rights reserved.
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spelling oxford-uuid:b5503040-f506-4cc7-a4c2-5dc5768014a12022-03-27T04:32:34ZSearches for periodic neutrino emission from binary systems with 22 and 40 strings of IceCubeJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b5503040-f506-4cc7-a4c2-5dc5768014a1EnglishSymplectic Elements at Oxford2012Abbasi, RAbdou, YAbu-Zayyad, TAckermann, MAdams, JAguilar, JAhlers, MAllen, MAltmann, DAndeen, KAuffenberg, JBai, XBaker, MBarwick, SBay, RBazo Alba, JBeattie, KBeatty, JBechet, SBecker, JBecker, KBenabderrahmane, MBenzvi, SBerdermann, JBerghaus, PIn this paper, we present the results of searches for periodic neutrino emission from a catalog of binary systems. Such modulation, observed in the photon flux, would be caused by the geometry of these systems. In the analysis, the period is fixed by these photon observations, while the phase and duration of the neutrino emission are treated as free parameters to be fit with the data. If the emission occurs during 20% or less of the total period, this analysis achieves better sensitivity than a time-integrated analysis. We use the IceCube data taken from 2007 May 31 to 2008 April 5 with its 22 string configuration and from 2008 April 5 to 2009 May 20 with its 40 string configuration. No evidence for neutrino emission is found, with the strongest excess occurring for CygnusX-3 at 2.1σ significance after accounting for trials. Neutrino flux upper limits for both periodic and time-integrated emission are provided. © 2012. The American Astronomical Society. All rights reserved.
spellingShingle Abbasi, R
Abdou, Y
Abu-Zayyad, T
Ackermann, M
Adams, J
Aguilar, J
Ahlers, M
Allen, M
Altmann, D
Andeen, K
Auffenberg, J
Bai, X
Baker, M
Barwick, S
Bay, R
Bazo Alba, J
Beattie, K
Beatty, J
Bechet, S
Becker, J
Becker, K
Benabderrahmane, M
Benzvi, S
Berdermann, J
Berghaus, P
Searches for periodic neutrino emission from binary systems with 22 and 40 strings of IceCube
title Searches for periodic neutrino emission from binary systems with 22 and 40 strings of IceCube
title_full Searches for periodic neutrino emission from binary systems with 22 and 40 strings of IceCube
title_fullStr Searches for periodic neutrino emission from binary systems with 22 and 40 strings of IceCube
title_full_unstemmed Searches for periodic neutrino emission from binary systems with 22 and 40 strings of IceCube
title_short Searches for periodic neutrino emission from binary systems with 22 and 40 strings of IceCube
title_sort searches for periodic neutrino emission from binary systems with 22 and 40 strings of icecube
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