Every Flare, Everywhere: An All-Sky Untriggered Search for Astrophysical Neutrino Transients Using IceCube Data. (arXiv:2107.12134v1 [astro-ph.HE])
<a href="http://arxiv.org/find/astro-ph/1/au:+Lucarelli_F/0/1/0/all/0/1">Francesco Lucarelli</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Luszczak_W/0/1/0/all/0/1">William Luszczak</a> (for the IceCube Collaboration)
Recent results from IceCube regarding TXS 0506+056 suggest the presence of
neutrino flares that are not temporally coincident with a significant
corresponding gamma ray flare. Such flares are particularly difficult to
identify, as their presence must be inferred from the temporal distribution of
neutrino data alone. Here we present the results of using a novel method to
search for all such flares across the entire neutrino sky in 10 years of
IceCube data, using both Gaussian and box-shaped flare hypotheses. Unlike for
past searches, that looked for only the most significant neutrino flare in the
data at a given direction, here we implement an algorithm to combine
information from multiple flares associated with a single source candidate.
This represents the most detailed description of the neutrino sky to date,
providing the location and intensity of all neutrino cluster candidates in both
space and time. These results can be used to further constrain potential
populations of transient neutrino sources, serving as a complement to existing
time-integrated and time-dependent methods.
Recent results from IceCube regarding TXS 0506+056 suggest the presence of
neutrino flares that are not temporally coincident with a significant
corresponding gamma ray flare. Such flares are particularly difficult to
identify, as their presence must be inferred from the temporal distribution of
neutrino data alone. Here we present the results of using a novel method to
search for all such flares across the entire neutrino sky in 10 years of
IceCube data, using both Gaussian and box-shaped flare hypotheses. Unlike for
past searches, that looked for only the most significant neutrino flare in the
data at a given direction, here we implement an algorithm to combine
information from multiple flares associated with a single source candidate.
This represents the most detailed description of the neutrino sky to date,
providing the location and intensity of all neutrino cluster candidates in both
space and time. These results can be used to further constrain potential
populations of transient neutrino sources, serving as a complement to existing
time-integrated and time-dependent methods.
http://arxiv.org/icons/sfx.gif
