Probing the origin of cosmic rays in Cygnus Cocoon using ultrahigh-energy gamma-ray and neutrino observations
arXiv:2303.03021 · doi:10.3847/2041-8213/ac7157
Abstract
Recent ultrahigh energy gamma-ray observations by the HAWC up to 100 TeV and LHAASO observatories up to 1.4 PeV energies from the direction of Fermi-LAT 4FGL source 4FGL J2028.6+4110e (Cygnus Cocoon), are indicative of a hadronic origin over a leptonic process for their creation. The IceCube Neutrino Observatory has reported IceCube-201120A, a neutrino event coming from the same direction, suggesting that the Cygnus Cocoon may correspond to one of the most plausible sources of high-energy cosmic rays. The apparent relationship of the neutrino event with the observed ultra high energy gamma-rays from Cygnus Cocoon is investigated in this work to study if it can be explained consistently in hadronic interactions of accelerated cosmic rays with ambient matter. Our findings reveal that leptonic mechanisms, together with pure hadronic mechanisms, make a considerable contribution to the understanding of the total electromagnetic spectrum as well as the observed neutrino event. The estimate of expected muon neutrino events from the Cygnus cocoon agrees with the one muon neutrino event detected so far in IceCube multi-year observations. Thus, our results are indicative of the potential of the Cygnus Cocoon to be a galactic cosmic ray source capable of accelerating at least up to PeV energies.
arXiv comment9 pages, 4 figures
References in corpus (27)
- Energy spectra of gamma-rays, electrons and neutrinos produced at proton-proton interactions in the very high energy regime
- Leptonic and Hadronic Modeling of Fermi-Detected Blazars
- The Origin of Galactic Cosmic Rays
- IceCube-Gen2: The Window to the Extreme Universe
- Cosmic ray acceleration and escape from supernova remnants
- Science with e-ASTROGAM (A space mission for MeV-GeV gamma-ray astrophysics)
- Multiple Galactic Sources with Emission Above 56 TeV Detected by HAWC
- The blazar TXS 0506+056 associated with a high-energy neutrino: insights into extragalactic jets and cosmic ray acceleration
- First Detection of sub-PeV Diffuse Gamma Rays from the Galactic Disk: Evidence for Ubiquitous Galactic Cosmic Rays beyond PeV Energies
- Superbubbles and Energetic Particles in the Galaxy. I: Collective effects of particle acceleration
- Observational signatures of particle acceleration in supernova remnants
- The observation of the Crab Nebula with LHAASO-KM2A for the performance study
- Sensitivity of the KM3NeT/ARCA neutrino telescope to point-like neutrino sources
- HAWC observations of the acceleration of very-high-energy cosmic rays in the Cygnus Cocoon
- Identification of the TeV Gamma-ray Source ARGO J2031+4157 with the Cygnus Cocoon
- AGILE detection of GeV gamma-ray emission from the SNR W28
- High Energy Gamma-rays from Globular Clusters
- The cosmic-ray and gas content of the Cygnus region as measured in gamma rays by the Fermi Large Area Telescope
- Cosmic Rays and Particle Physics
- Describing correlated observations of neutrino and gamma ray flares from the blazar TXS 0506+056 with proton blazar model
- Observation of photons above 300 TeV associated with a high-energy neutrino from the Cygnus region
- Gamma-ray production in young open clusters: Berk 87, Cyg OB2 and Westerlund 2
- Implications of a proton blazar inspired model on correlated observations of neutrinos with gamma-ray flaring blazars
- Gamma-Ray Puzzles in Cygnus X: Implications for High-Energy Neutrinos
- Prospect for dark matter signatures from dwarf galaxies by LHAASO
- Prospects for a Multi-TeV Gamma-ray Sky Survey with the LHAASO Water Cherenkov Detector Array
- Implications of supernova remnant origin model of galactic cosmic rays on Gamma rays from young supernova remnants