Franckowiak, A. 2009 对IceCube的中微子观测的光学余辉观测方案

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Title:		Optical follow-up of high-energy neutrinos detected by IceCube
Authors:		Franckowiak, A.; Akerlof, C.; Cowen, D. F.; Kowalski, M.; Lehmann, R.; Schmidt, T.; Yuan, F.; for the IceCube collaboration; for the ROTSE collaboration
Publication:		eprint arXiv:0909.0631
Publication Date:		09/2009
Origin:		ARXIV
Keywords:		Astrophysics - High Energy Astrophysical Phenomena
Comment:		4 pages, 2 figures, Proceedings of the 31st ICRC, Lodz, Poland, July 2009
Bibliographic Code:		2009arXiv0909.0631F

Abstract

Three-quarters of the 1 cubic kilometer neutrino telescope IceCube is currently taking data. Current models predict high-energy neutrino emission from transient objects like supernovae (SNe) and gammaray bursts (GRBs). To increase the sensitivity to such transient objects we have set up an optical follow-up program that triggers optical observations on multiplets of high-energy muon-neutrinos. We define multiplets as a minimum of two muon-neutrinos from the same direction (within 4 deg) that arrive within a 100 s time window. When this happens, an alert is issued to the four ROTSE-III telescopes, which immediately observe the corresponding region in the sky. Image subtraction is applied to the optical data to find transient objects. In addition, neutrino multiplets are investigated online for temporal and directional coincidence with gamma-ray satellite observations issued over the Gamma-Ray Burst Coordinate Network. An overview of the full program is given, from the online selection of neutrino events to the automated follow-up, and the resulting sensitivity to transient neutrino sources is presented for the first time.

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