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Oxford University Press, Monthly Notices of the Royal Astronomical Society, 3(448), p. 2210-2223, 2015

DOI: 10.1093/mnras/stv136

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Swift follow-up of IceCube triggers, and implications for the Advanced-LIGO era

Journal article published in 2015 by P. A. Evans, J. P. Osborne, J. A. Kennea, M. Smith, D. M. Palmer, N. Gehrels, J. M. Gelbord ORCID, A. Homeier, M. Voge, N. L. Strotjohann ORCID, D. F. Cowen, S. Boeser, S. Boser, Marek Kowalski ORCID, A. Stasik
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This paper is available in a repository.

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Abstract

Between 2011 March and 2014 August Swift responded to 20 triggers from the IceCube neutrino observatory, observing the IceCube 50 per cent confidence error circle in X-rays, typically within 5 h of the trigger. No confirmed counterpart has been detected. We describe the Swift follow-up strategy and data analysis and present the results of the campaign. We discuss the challenges of distinguishing the X-ray counterpart to a neutrino trigger from serendipitous uncatalogued X-ray sources in the error circle, and consider the implications of our results for future strategies for multimessenger astronomy, with particular reference to the follow-up of gravitational wave triggers from the advanced-era detectors. ; PAE and JPO acknowledge UK Space Agency support. JMG gratefully acknowledges the support from NASA under award NNH13CH61C. ; Peer-reviewed ; Publisher Version