Geminga SNR: Possible Candidate of Local Cosmic-Ray Factory (II)

Accurate measurements of the energy spectrum and anisotropy can help us discover local cosmic-ray accelerators. Our recent works have shown that spectral hardening above 200 GeV in spectra transition large-scale at ∼100 TeV are an unifying origin. Less than 100 TeV, both explicitly indicate dominant contribution from nearby sources. Recent observations CR suggest this phase is consistent with locally regular magnetic field (LRMF) interstellar boundary explorer (IBEX) below TeV. In work, we further investigate parameter space sources allowed by observational amplitude dipole anisotropy. To obtain best-fit source parameters, a numerical algorithm to compute posterior distributions based on Bayesian inference. We found combining anisotropy, parameters model be well constrained. The LRMF effect corresponding anisotropic diffusion considered work. Finally, results’ right ascension (R.A.)=3.2 h was obtained fitting, which general agreement experimental observations. Since Geminga SNR very close mean fitted it could candidate for accelerator.