http://arxiv.org/abs/2304.00831
High Energy Neutrino telescopes such as IceCube or KM3NeT issue public alerts describing the characteristics of possible astrophysical high energy neutrino events. This information, in particular the arrival direction and the associated uncertainty of the neutrino candidates, is used by observatories to search for possible electromagnetic counterparts. Such searches are complicated by the localization areas as high as tens of squared degrees or more and the absence of constraints on the distance or nature of the source, contrarily to gravitational wave alerts issued by instruments such as LIGO/Virgo. A method to derive a probable distance for the astrophysical source possibly associated to a HEN event is described, which can be used in a cross-match with galaxy catalogues to search for possible electromagnetic counterparts. This is intended as a guide for high energy neutrino followup campaigns.
T. Pradier
Tue, 4 Apr 23
7/111
Comments: N/A