Search for High-Energy Neutrino Emission from Galactic X-ray Binaries with IceCube

Abstract

We present the first comprehensive search for high-energy neutrino emission from high- and low-mass X-ray binaries conducted by IceCube. Galactic X-ray binaries are long-standing candidates for the source of Galactic hadronic cosmic rays and neutrinos. The compact object in these systems can be the site of cosmic-ray acceleration, and neutrinos can be produced by interactions of cosmic rays with radiation or gas, in the jet of a microquasar, in the stellar wind, or in the atmosphere of the companion star. We study X-ray binaries using 7.5 years of IceCube data with three separate analyses. In the first, we search for periodic neutrino emission from 55 binaries in the Northern Sky with known orbital periods. In the second, the X-ray light curves of 102 binaries across the entire sky are used as templates to search for time-dependent neutrino emission. Finally, we search for time-integrated emission of neutrinos for a list of 4 notable binaries identified as microquasars. In the absence of a significant excess, we place upper limits on the neutrino flux for each hypothesis and compare our results with theoretical predictions for several binaries. In addition, we evaluate the sensitivity of the next generation neutrino telescope at the South Pole, IceCube-Gen2, and demonstrate its power to identify potential neutrino emission from these binary sources in the Galaxy.

10+7 pages, 4 figures

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Cited by in corpus (16)

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• Possible contribution of X-ray binary jets to the Galactic cosmic ray and neutrino flux
• Search for spatial coincidence between IceCube neutrinos and radio pulsars
• Probing the connection between IceCube neutrinos and MOJAVE AGN
• Microquasar Cyg X-3 -- a unique jet-wind neutrino factory?
• Probing the Galactic neutrino flux at neutrino energies above 200 TeV with the Baikal Gigaton Volume Detector
• Beyond first light: Global monitoring for high-energy neutrino astronomy
• Owens Valley Radio Observatory monitoring of LS I +61°303 completes three cycles of the super-orbital modulation
• Time-integrated constraint on neutrino flux of CHIME fast radio burst sources with 10-year IceCube point-source data
• Deciphering the Sources of Cosmic Neutrinos
• First Search for High-Energy Neutrino Emission from Galaxy Mergers
• Search for neutrino signals correlated with LHAASO diffuse Galactic emission
• Constraints on the origins of the Galactic neutrino flux
• Cygnus X-3 as semi-hidden PeVatron
• Search for spatial coincidence between IceCube neutrinos and gamma-ray bright red dwarfs
• Particle Astrophysics with High and Ultrahigh Energy Neutrinos