Magnetic rigidity reveals the PeVatron acceleration region in SS433

arXiv:2608.02314 · astro-ph.HE · Submitted 2026-08-16 · Read on arXiv

Jie Liao, Wancheng Xu, Lang Cui, Pak-Hin Thomas Tam, Xi Yan, Linuo Yang, Ruo-yu Liu, Liang Chen, Ning Chang, Yong-Feng Huang, Long Ji, Ashutosh Tripathi, Felix Aharonian

astro-ph.HE

Submitted: 2026-08-16

Updated: 2026-08-18

Comments: 37 pages, 10 figures

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Core — 12× in this paper · explained in 2 episodes
• Calibration — 8× in this paper · explained in 7 episodes
• Consistency — 6× in this paper · explained in 3 episodes
• Aperture — 5× in this paper · explained in 1 episode
• Trace — 3× in this paper · explained in 2 episodes
• Alignment — 2× in this paper · explained in 1 episode
• Anisotropy — 2× in this paper · explained in 3 episodes
• Benchmark — 2× in this paper · explained in 2 episodes
• Very Long Baseline Array — 2× in this paper
• Accuracy — 1× in this paper · explained in 1 episode
• Hybrid Model — 1× in this paper · explained in 2 episodes
• Large High Altitude Air Shower Observatory — 1× in this paper
• Monte Carlo Analysis — 1× in this paper · explained in 2 episodes
• National Natural Science Foundation of China — 1× in this paper
• Self-consistency — 1× in this paper · explained in 2 episodes

Sources

• The Origin of Galactic Cosmic Rays
• Particle acceleration and multi-messenger radiation from Ultra-Luminous X-ray Sources: A new class of Galactic PeVatrons
• Galactic Super-Accreting X-ray Binaries as Super-PeVatron Accelerators
• A Leptonic Interpretation of the UHE Gamma-ray Emission from V4641 Sgr
• The inner radio jet region and the complex environment of SS433
• Very high energy particle acceleration powered by the jets of the microquasar SS 433
• Acceleration and transport of relativistic electrons in the jets of the microquasar SS 433
• Ultrahigh-Energy Gamma-ray Emission Associated with Black Hole-Jet Systems
• Fermi acceleration in astrophysical jets
• The Astrophysics of Ultrahigh Energy Cosmic Rays
• The First Measurement of Jet Collimation Profiles in an X-ray Binary: the Case of SS 433
• Energy spectra of gamma-rays, electrons and neutrinos produced at proton-proton interactions in the very high energy regime
• Parametrization of gamma-ray production cross-sections for pp interactions in a broad proton energy range from the kinematic threshold to PeV energies
• HI4PI: A full-sky HI survey based on EBHIS and GASS
• Revised equipartition & minimum energy formula for magnetic field strength estimates from radio synchrotron observations
• Analytical Solution of Magnetically Dominated Astrophysical Jets and Winds: Jet Launching, Acceleration, and Collimation
• SS433's jet trace from ALMA imaging and Global Jet Watch spectroscopy: evidence for post-launch particle acceleration
• naima: a Python package for inference of relativistic particle energy distributions from observed nonthermal spectra
• Energy estimation of high energy particles associated with the SS433/W50 system through radio observation at 1.4 GHz
• Energy spectra of gamma-rays, electrons and neutrinos produced at interactions of relativistic protons with low energy radiation

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