Measurement Of Very-high-energy Diffuse Gamma-ray Emission From Galactic Plane With LHAASO-KM2A

Rui Zhang
Shiping Zhao
Yi Zhang
Qiang Yuan
Zhen Cao
F. Aharonian
Q. An
Axikegu
L. X. Bai
Y. X. Bai
F. R. Zhu
H. Zhu
Y. W. Bao
D. Bastieri
X. J. Bi
Y. J. Bi
H. Cai
J. T. Cai

Abstract

Galactic diffuse gamma ray emission (GDE) is introduced by the galactic cosmic rays interacting with the interstellar medium (ISM) and/or radiation fields (ISRF). Studying galactic diffuse TeV γ-ray emission would help to understand mechanisms of acceleration and propagation of galactic cosmic rays. LHAASO-KM2A with an large area of 1.36 km2, has an excellent ability to study VHE γ-ray astronomy and GDE. In this proceeding, method of background estimation and some techniques to reduce the contaminant of resolved γ-ray sources are briefly introduced. At last, we look into the inner galactic plane (IGP) and present the measurements.

This paper has been withdrawn.