Speaker
Hanrong WU
(IHEP)
Description
We present the analysis of 4 year LHAASO data of the middle-aged SNR W44 and the massive mocecular gas complex that surrounds it. We confirm the presence of the extended gamma-ray structure located near the remnant. Based on the high-resolution gas maps, we demonstrate that gamma-ray structures are caused by the interaction of escaped relativistic particles with Moclecular Clouds。We argu that the revealed cosmic-ray "clouds" suggest an anisotropic character of the escape of high energy particles frem the shell.