Probing LHAASO Galactic PeVatrons through gamma-ray and neutrino correspondence

Abstract

Recently, Large High Altitude Air Shower Observatory (LHAASO) has detected several Galactic point sources of ultra high energy (UHE; $E_{\gamma }>100$ TeV) gamma-rays. These gamma-rays are possibly created in leptonic or hadronic interactions of cosmic rays (CRs) of PeV energies. In the hadronic channel ($p-p$ interaction), the gamma-rays are accompanied by neutrinos. The detection of neutrinos is therefore crucial in understanding CR acceleration in such objects. To estimate the neutrino flux, we adopt the two LHAASO sources (J2226+6057, J1908+0621) found to be spatially associated with the Supernova remnants (SNR G106.3+2.7, SNR G40.5-0.5). For these two sources, the detected TeV-PeV gamma-ray spectra are found to be unusually hard (with spectral index $\sim$ 1.8). We develop a model of gamma-ray and neutrino emission based on the above two prototypes. The neutrino fluxes from these two sources are found to be below the IceCube sensitivity, but are detectable in upcoming IceCube-Gen2 and KM3NeT experiments. We further estimate the neutrino fluxes from similar other 10 LHAASO PeVatron sources and most of them are found to be detectable in IceCube-Gen2 and KM3NeT. Finally, we explore our model parameters, in particular the spectral power law index and estimate the future potential of the neutrino detectors to probe CR acceleration in such Galactic sources.

arXiv comment8 pages, 4 figures

References in corpus (45)

• Fermi Large Area Telescope Fourth Source Catalog
• Energy spectra of gamma-rays, electrons and neutrinos produced at proton-proton interactions in the very high energy regime
• Detection of the Characteristic Pion-Decay Signature in Supernova Remnants
• IceCube-Gen2: The Window to the Extreme Universe
• Acceleration of petaelectronvolt protons in the Galactic Centre
• The H.E.S.S. Galactic plane survey
• The IceCube high-energy starting event sample: Description and flux characterization with 7.5 years of data
• Parametrization of gamma-ray production cross-sections for pp interactions in a broad proton energy range from the kinematic threshold to PeV energies
• All-sky search for time-integrated neutrino emission from astrophysical sources with 7 years of IceCube data
• TeV Gamma-Ray Sources from a Survey of the Galactic Plane with Milagro
• Measurement of the cosmic-ray proton spectrum from 40 GeV to 100 TeV with the DAMPE satellite
• Multiple Galactic Sources with Emission Above 56 TeV Detected by HAWC
• Probing the Galactic Origin of the IceCube Excess with Gamma-Rays
• The origin of Galactic cosmic rays: challenges to the standard paradigm
• Peta-electron volt gamma-ray emission from the Crab Nebula
• Attenuation of VHE gamma rays by the Milky Way interstellar radiation field
• A semi-analytical approach to non-linear shock acceleration
• Sensitivity of the KM3NeT/ARCA neutrino telescope to point-like neutrino sources
• Searching for galactic cosmic ray pevatrons with multi-TeV gamma rays and neutrinos
• Potential PeVatron supernova remnant G106.3+2.7 seen in the highest-energy gamma rays
• Molecular Clouds as a Probe of Cosmic-Ray Acceleration in a Supernova Remnant
• The Galactic Center Origin of a Subset of IceCube Neutrino Events
• PeV neutrinos from interactions of cosmic rays with the interstellar medium in the Galaxy
• The SNR G106.3+2.7 and its Pulsar Wind Nebula: relics of triggered star formation in a complex environment
• Nonlinear Particle Acceleration in Relativistic Shocks
• The Hunt for Pevatrons: The Case of Supernova Remnants
• Detection of Extended VHE Gamma Ray Emission from G106.3+2.7 with VERITAS
• Detection of Very High Energy radiation from HESS J1908+063 confirms the Milagro unidentified source MGRO J1908+06
• Spectral universality of strong shocks accelerating charged particles
• Point-source and diffuse high-energy neutrino emission from Type IIn supernovae
• VER J2227+608: A Hadronic PeVatron Pulsar Wind Nebula?
• Diffuse neutrinos from extragalactic supernova remnants: Dominating the 100 TeV IceCube flux
• Galactic PeV Neutrinos
• Gamma-ray spectrum of RX J1713.7-3946 in the Fermi era and future detection of neutrinos
• Where are Milky Way's Hadronic PeVatrons?
• Investigating the nature of MGRO J1908+06 with multiwavelength observations
• Prediction of the diffuse neutrino flux from cosmic ray interactions near Supernova Remnants
• X-Ray Emission from the PeVatron-candidate Supernova Remnant G106.3+2.7
• Revealing a peculiar supernova remnant G106.3+2.7 as a petaelectronvolt proton accelerator with X-ray observations
• Spectral signatures of PeVatrons
• Time Evolution of Gamma Rays from Supernova Remnants
• Multi-band Emission up to PeV Energy from the Crab Nebula in a Spatially Dependent Lepto-hadronic Model
• Ultra-high Energy Gamma-rays from Past Explosions in our Galaxy
• Study of maximum electron energy of sub-PeV pulsar wind nebulae by multiwavelength modelling
• Examining the secondary product origin of cosmic ray positrons with the latest AMS-02 data

Cited by in corpus (4)

• The LHAASO PeVatron bright sky: what we learned
• Interpreting the GeV-TeV Gamma-Ray Spectra of Local Giant Molecular Clouds using GEANT4 Simulation
• A relook at the GZK Neutrino-Photon Connection: Impact of Extra-galactic Radio Background & UHECR properties
• SNR G54.1+0.3, a PeVatron candidate unveiled by LHAASO