Journal article
Search for Joint Multimessenger Signals from Potential Galactic Cosmic-Ray Accelerators with HAWC and IceCube
The Astrophysical journal, Vol.976(1), p.8
11/01/2024
DOI: 10.3847/1538-4357/ad812f
Abstract
The origin of high-energy galactic cosmic rays is yet to be understood, but some galactic cosmic-ray accelerators can accelerate cosmic rays up to PeV energies. The high-energy cosmic rays are expected to interact with the surrounding material or radiation, resulting in the production of gamma-rays and neutrinos. To optimize for the detection of such associated production of gamma-rays and neutrinos for a given source morphology and spectrum, a multimessenger analysis that combines gamma-rays and neutrinos is required. In this study, we use the Multi-Mission Maximum Likelihood framework with IceCube Maximum Likelihood Analysis software and HAWC Accelerated Likelihood to search for a correlation between 22 known gamma-ray sources from the third HAWC gamma-ray catalog and 14 yr of IceCube track-like data. No significant neutrino emission from the direction of the HAWC sources was found. We report the best-fit gamma-ray model and 90% CL neutrino flux limit from the 22 sources. From the neutrino flux limit, we conclude that, for five of the sources, the gamma-ray emission observed by HAWC cannot be produced purely from hadronic interactions. We report the limit for the fraction of gamma-rays produced by hadronic interactions for these five sources.
Details
- Title: Subtitle
- Search for Joint Multimessenger Signals from Potential Galactic Cosmic-Ray Accelerators with HAWC and IceCube
- Creators
- R. AlfaroK. L. FanChad Finley - Oskar Klein-centrum för kosmopartikelfysik (OKC)Attila Hidvegi - Oskar Klein-centrum för kosmopartikelfysik (OKC)Klas Hultqvist - Oskar Klein-centrum för kosmopartikelfysik (OKC)Matti Jansson - Oskar Klein-centrum för kosmopartikelfysik (OKC)Ludwig Neste - Oskar Klein-centrum för kosmopartikelfysik (OKC)Christian Walck - Oskar Klein-centrum för kosmopartikelfysik (OKC)M. ZimmermanIceCube CollaborationMatheus Hostert (Contributor) - Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- The Astrophysical journal, Vol.976(1), p.8
- DOI
- 10.3847/1538-4357/ad812f
- ISSN
- 0004-637X
- eISSN
- 1538-4357
- Language
- English
- Date published
- 11/01/2024
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984945914202771
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