X-ray Binaries: a potential dominant contributor to the cosmic ray spectral knee structure

Abstract

``PeVatrons" refer to astrophysical sources capable of accelerating particles to energies $\sim$PeV and higher, potentially contributing to the cosmic ray spectrum in the knee region. Recently, HAWC and LHAASO have discovered a new type PeVatrons -- X-ray binaries, allowing us to investigate in greater depth of the contributions of these sources to cosmic rays around the knee region. There are hundreds of X-ray binaries in our galaxy observed, which are potential PeVatrons.In this work, we derive the radial distribution of X-ray binaries in the Galaxy. Then we use the DRAGON package to calculate energy spectrum, anisotropy of cosmic rays as well as the resulting diffuse gamma ray emissions, after considering them as factories of cosmic rays in the knee energy bands. Our findings show that the contributions from X-ray binary PeVatrons may be dominant. More X-ray binary PeVatrons can be observed by LHAASO and HAWC in the future, and will confirm the contribution of X-ray binaries to high energy cosmic rays.

Accepted for publication in ApJ

References in corpus (31)

• X-ray Properties of Black-Hole Binaries
• Detection of the Characteristic Pion-Decay Signature in Supernova Remnants
• Measurement of the cosmic-ray proton spectrum from 40 GeV to 100 TeV with the DAMPE satellite
• The First LHAASO Catalog of Gamma-Ray Sources
• First Detection of sub-PeV Diffuse Gamma Rays from the Galactic Disk: Evidence for Ubiquitous Galactic Cosmic Rays beyond PeV Energies
• The Large Scale Cosmic-Ray Anisotropy as Observed with Milagro
• Measurement of the Anisotropy of Cosmic Ray Arrival Directions with IceCube
• Evolution of the cosmic ray anisotropy above 10^{14} eV
• Measurement of ultra-high-energy diffuse gamma-ray emission of the Galactic plane from 10 TeV to 1 PeV with LHAASO-KM2A
• Observation of Cosmic Ray Anisotropy with the IceTop Air Shower Array
• The binary mass ratio in the black hole transient MAXI J1820+070
• Northern sky Galactic Cosmic Ray anisotropy between 10-1000 TeV with the Tibet Air Shower Array
• ARGO-YBJ Observation of the Large-scale Anisotropy During the Solar Minimum between Cycles 23 and 24
• XRBcats: Galactic Low Mass X-ray Binary Catalogue
• Measurements of All-Particle Energy Spectrum and Mean Logarithmic Mass of Cosmic Rays from 0.3 to 30 PeV with LHAASO-KM2A
• Ultra-High-Energy Gamma-Ray Bubble around Microquasar V4641 Sgr
• High-energy Cosmic Ray production in X-ray Binary Jets
• The X-ray binary population in the Galactic Center revealed through multi-decade observations
• Insights from LHAASO and IceCube into the origin of the Galactic diffuse TeV--PeV emission
• Interpretations of the cosmic ray secondary-to-primary ratios measured by DAMPE
• Decomposing the Origin of TeV-PeV Emission from the Galactic Plane: Implications of Multi-messenger Observations
• Multi-wavelength Emission from Galactic Jets: the Case of the Microquasar SS433
• Astroparticles from X-ray Binary Coronae
• Possible contribution of X-ray binary jets to the Galactic cosmic ray and neutrino flux
• Highly collimated microquasar jets as efficient cosmic-ray sources
• A common origin of multi-messenger spectral anomaly of galactic cosmic rays
• Implications of a Possible Spectral Structure of Cosmic-ray Protons Unveiled by the DAMPE
• Observation of Cosmic-Ray Anisotropy in the Southern Hemisphere with 12 yr of Data Collected by the IceCube Neutrino Observatory
• A New Perspective on the Diffuse Gamma-Ray Emission Excess
• Galactic diffuse emission from radio to ultra-high-energy gamma rays in light of up-to-date cosmic ray measurements
• Quantitative constraint on the contribution of resolved gamma-ray sources to the sub-PeV Galactic diffuse gamma-ray flux measured by the Tibet ASγ experiment

Cited by in corpus (1)

• Joint constraint on the propagation origin of the cosmic-ray spectral knee from energy spectrum and anisotropy observations