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SNEWS 2.0: a next-generation supernova early warning system for multi-messenger astronomy

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Brdar,  V.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Citation

Al Kharusi, S., BenZvi, S. Y., Bobowski, J. S., Bonivento, W., Brdar, V., Brunner, T., et al. (2021). SNEWS 2.0: a next-generation supernova early warning system for multi-messenger astronomy. New Journal of Physics, 23(3): 031201. doi:10.1088/1367-2630/abde33.


Cite as: https://hdl.handle.net/21.11116/0000-000A-3292-8
Abstract
The next core-collapse supernova in the Milky Way or its satellites will
represent a once-in-a-generation opportunity to obtain detailed
information about the explosion of a star and provide significant
scientific insight for a variety of fields because of the extreme
conditions found within. Supernovae in our galaxy are not only rare on a
human timescale but also happen at unscheduled times, so it is crucial
to be ready and use all available instruments to capture all possible
information from the event. The first indication of a potential stellar
explosion will be the arrival of a bright burst of neutrinos. Its
observation by multiple detectors worldwide can provide an early warning
for the subsequent electromagnetic fireworks, as well as signal to other
detectors with significant backgrounds so they can store their recent
data. The supernova early warning system (SNEWS) has been operating as a
simple coincidence between neutrino experiments in automated mode since
2005. In the current era of multi-messenger astronomy there are new
opportunities for SNEWS to optimize sensitivity to science from the next
galactic supernova beyond the simple early alert. This document is the
product of a workshop in June 2019 towards design of SNEWS 2.0, an
upgraded SNEWS with enhanced capabilities exploiting the unique
advantages of prompt neutrino detection to maximize the science gained
from such a valuable event.