25–29 Apr 2026
Kechuang Building
Asia/Shanghai timezone

Anisotropy Evolution from galactic CR to extragalactic CR

27 Apr 2026, 15:25
5m
A102 (Kechuang Building)

A102

Kechuang Building

NO.1520 Taihu Blvd, Suzhou, Jiangsu, China
Poster report(print size: 0.6m Wide*0.9m High) Cosmic Ray Anisotropy session

Speaker

Wenyi Bian (Shanghai Jiao Tong University)

Description

Cosmic ray (CR) observatories have detected characters of CR anisotropy across different energy ranges including contributions from both galactic cosmic rays (GCRs) and extragalactic cosmic rays (EGCRs). We obtain simulation CR anisotropy results by back-tracing test particles in turbulent magnetic fields. For GCRs, we discuss the anisotropy dipole flip happened between about 10 TeV to several hundred TeV. For EGCRs, we show our theoretical prediction for the EGCR anisotropy in the galactic magnetic field model (GMF). In the 'knee' region, we suggest the anisotropy can be a probe for distinguishing the GCRs and EGCRs.

Primary authors

Wenyi Bian (Shanghai Jiao Tong University) Gwenael Giacinti (APC, Paris)

Presentation materials