Understanding the dark matter distribution throughout a galaxy can provide insight into its elusive nature. Numerous density profiles, such as the Navarro, Frenk and White model, have been created in an attempt to stu...
supported by National Key R&D Program of China(grant No.2023YFE0117200);the National Natural Science Foundation of China(NSFC,grant Nos.12133003,12103011);R-Z.Y.is supported by the NSFC under grants 11421303,12041305;Science and Technology Program of Guangxi(grant Nos.AD 21220075 and 2024GXNSFBA010375);the national youth thousand talents program in China。
We revisit the γ-ray emission above 300 Me V towards the massive star-forming region of Orion B by adopting14 yr observations with the Fermi Large Area Telescope and utilizing the updated software tools.The extended ...