IceCube Search for High-Energy Neutrino Emission from TeV Pulsar Wind Nebulae

Collaboration
Mar 26, 2020
8 pages
Published in:
  • Astrophys.J. 898 (2020) 2, 117
  • Published: Jul 30, 2020
e-Print:
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Abstract: (IOP)
Pulsar wind nebulae (PWNe) are the main gamma-ray emitters in the Galactic plane. They are diffuse nebulae that emit nonthermal radiation. Pulsar winds, relativistic magnetized outflows from the central star, shocked in the ambient medium produce a multiwavelength emission from the radio through gamma-rays. Although the leptonic scenario is able to explain most PWNe emission, a hadronic contribution cannot be excluded. A possible hadronic contribution to the high-energy gamma-ray emission inevitably leads to the production of neutrinos. Using 9.5 yr of all-sky IceCube data, we report results from a stacking analysis to search for neutrino emission from 35 PWNe that are high-energy gamma-ray emitters. In the absence of any significant correlation, we set upper limits on the total neutrino emission from those PWNe and constraints on hadronic spectral components.
Note:
  • 11 pages, 2 figures
  • gamma ray: emission
  • neutrino: production
  • neutrino: energy: high
  • pulsar
  • IceCube
  • correlation
  • spectral
  • stacking
  • galaxy
  • star