par Alfaro, Rubén;Aguilar Sanchez, Juan Antonio 
;Chau, Thien Nhan ;Maris, Ioana Codrina ;Schlüter, Felix ;Toscano, Simona ; [et al.]
Référence The Astrophysical journal, 976, 1, ad812f
Publication Publié, 2024-11-01
;Chau, Thien Nhan ;Maris, Ioana Codrina ;Schlüter, Felix ;Toscano, Simona ; [et al.]Référence The Astrophysical journal, 976, 1, ad812f
Publication Publié, 2024-11-01
Article révisé par les pairs
| Résumé : | 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 MultiMission 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 gammarays produced by hadronic interactions for these five sources. |
