Investigating the correlations between IceCube high-energy neutrinos and Fermi-LAT gamma-ray observations

Abstract

We use 10 years of publicly available IceCube data to investigate the correlations between high-energy neutrinos and various Fermi-LAT gamma-ray samples. This work considers the following gamma-ray samples: the third Fermi-LAT catalog of high-energy sources(3FHL), >100GeV Fermi-LAT events, LAT 12-year source catalog(4FGL), the fourth catalog of active galactic nuclei(4LAC) and subsets of these samples. For each sample, both a single-source analysis and a stacking analysis are performed. We find no indication that the sources in these samples produce significant high-energy neutrinos. From the null search results, we infer that each source population can produce no more than ~2.5%-36%(at the 95% confidence level, for a spectral index of -2.5) of the IceCube's diffuse neutrino flux. Since we are using a larger (10years) dataset of IceCube neutrinos the constraints are improved by a factor of ~2 compared to those based on 3 years of data.

14pages,7figures, accepted for publication in Physical Review D

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Cited by in corpus (8)

• Search for spatial coincidence between IceCube neutrinos and radio pulsars
• Searching for dark-matter induced neutrino signals in dwarf spheroidal galaxies using 10 years of IceCube public data
• A stacked search for spatial coincidences between IceCube neutrinos and radio pulsars
• Time-integrated constraint on neutrino flux of CHIME fast radio burst sources with 10-year IceCube point-source data
• First Search for High-Energy Neutrino Emission from Galaxy Mergers
• Investigating the correlations between IceCube high-energy neutrinos and Fermi-LAT $\gamma$-ray observations. II
• The $L_{\mu }-L_{\tau }$ solution to the IceCube Ultra High Energy neutrino deficit in light of NA64
• Deepening gamma-ray point-source catalogues with sub-threshold information