25–29 Apr 2026
Kechuang Building
Asia/Shanghai timezone

Extended Very-High-Energy Gamma-Ray Emission around PSR J0622+3749: Constraints on the Diffusion Coefficient

27 Apr 2026, 17:00
5m
A102 (Kechuang Building)

A102

Kechuang Building

NO.1520 Taihu Blvd, Suzhou, Jiangsu, China
Poster report(print size: 0.6m Wide*0.9m High) Pulsar Wind Nebulae & Haloes & Pulsars session

Speaker

轩昂 叶

Description

Charged cosmic rays (CRs) are believed to propagate diffusively in the turbulent magnetic field of the Milky Way. The diffusion coefficient, which depends on the properties of the turbulent interstellar medium (ISM), is a key parameter governing CR propagation. We present an updated analysis of the extended very-high-energy (VHE) gamma-ray emission around the middle-aged (207.8 kyr) pulsar PSR J0622+3749 using LHAASO data, including the spatial significance (TS), energy spectrum, and constraints on the diffusion coefficient. These results provide new insights into the diffusion process of cosmic rays in the vicinity of the pulsar.

Primary authors

轩昂 叶 Rui Zhang (pmo) 毅 张 (purple mountain observatory) Qiang Yuan (Purple Mountain Observatory)

Presentation materials