[vsnet-grb-info 17916] ICECUBE-160427A neutrino candidate event: updated direction information

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  19363
SUBJECT: ICECUBE-160427A neutrino candidate event:  updated direction information
DATE:    16/04/29 16:29:47 GMT
FROM:    Erik Blaufuss at U. Maryland/IceCube  <blaufuss at icecube.umd.edu>

IceCube detected a candidate cosmic neutrino IceCube-160427A, "AMON ICECUBE HESE 127853 67093193" at 05:52:32.00 UT 
on 16/04/27 (http://gcn.gsfc.nasa.gov/notices_amon/67093193_127853.amon)  The event was a high energy starting event (HESE) 
with track-like characteristics and it arrived when the IceCube detector was in a normal operating state.   
​
More sophisticated reconstruction algorithms have been applied offline, with the direction refined to RA=240.57d and DEC=+9.34d (J2000), 
and the position uncertainty reduced to an estimated 0.6 degrees or 36 arcminuntes radius (stat+sys, 90% containment).  We encourage followup 
by ground and space-based instruments to help identify a possible astrophysical source for the neutrino.
​
The IceCube neutrino observatory is a cubic-kilometer neutrino detector operating at the geographic south Pole, Antarctica. 
The IceCube realtime alert point of contact can be reached at roc at icecube.wisc.edu