Stacking Search for Neutrinos from Fermi-LAT Active Galactic Nuclei
ORAL
Abstract
Gamma-ray bright active galactic nuclei (AGN) are a promising source for the acceleration of cosmic rays and the production of neutrinos. IceCube has previously identified two gamma-ray bright AGN (TXS 0506+056 and NGC 1068) as the first two known sources of high-energy neutrinos. A stacking analysis improves the sensitivity of IceCube by searching for aggregate neutrinos from a source class rather than individual sources. Significant improvements in IceCube statistical methods as well as the completeness of the Fermi-LAT catalogs have occurred since previous analyses that set limits on high energy neutrinos from this source class. This talk will present an analysis searching for IceCube neutrinos originating from gamma ray bright AGN in the 4LAC-DR3 catalog.
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Presenters
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Samuel Hori
University of Wisconsin-Madison
Authors
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Samuel Hori
University of Wisconsin-Madison
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Abhishek Desai
NASA Goddard Space Flight Center,
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Justin Vandenbroucke
University of Wisconsin - Madison