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A. Habig (Boston Univ.), SNEWS Collaboration
The detection of neutrinos from SN1987A confirmed the core-collapse nature of SN II, but the analysis was done after the optical discovery. The current generation of neutrino experiments are both much larger and actively looking for SN neutrinos in real time. Since neutrinos escape a new SN promptly while the first photons are not produced until hours later at the photospheric shock breakout, these experiments can provide an early warning of a galactic SN II. Such an advance notice of a coming nearby supernova would allow observations at all wavelengths from the earliest possible times. A coincidence network between neutrino experiments has been established to mimimize response time, eliminate experimental false alarms, and possibly provide some pointing to the impending event from neutrino wave-front timing.
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The author(s) of this abstract have provided an email address for comments about the abstract: habig@budoe.bu.edu