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

IceCube Collaboration, Paul Coppin, Pablo Correa Camiroaga, Catherine De Clercq, Krijn De Vries, Gwenhaël Laure De Wasseige, Jan Lünemann, Giuliano Alexander Maggi Olmedo, Nicolaas Van Eijndhoven

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Abstract

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.
Original languageEnglish
Article number117
Number of pages11
JournalAstrophys. J. Lett.
Volume898
Issue number2
DOIs
Publication statusPublished - 1 Aug 2020

Bibliographical note

11 pages, 2 figures; matches the published version in ApJ

Keywords

  • astro-ph.HE

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