Title: Gamma-ray Observations of the Inner Galaxy and Implications for Dark Matter and Cosmic-ray

Speaker: Xiaoyuan Huang

Institute: Purple Mountain Observatory Chinese Academy of Sciences

Host: Xiaoxia Zhang

Time: 14:30-16:30, Thursday, March, 30

Location: Physics Building 552

Abstract: 

In the WIMPs scenario of dark matter, dark matter could annihilate and yield gamma-ray. Considering the distribution of dark matter in our Milky Way, the inner galaxy region would be one of the best targets with the most prominent anticipated signal. However, cosmic rays could interact with interstellar medium to generate gamma-ray, which would be the source of contamination for any reported dark matter signals. On the other hand, it would also be essential to consider the contribution of possible dark matter signals while investigating the property of cosmic-ray in the galactic center region. In this talk, I will introduce our work about the gamma-ray line searches, the properties of GeV excess, and the cosmic-ray properties in the inner galaxy with gamma-ray observations.

Bio：

Dr. Xiaoyuan Huang obtained his PhD from the National Astronomical Observatories, Chinese Academy of Sciences in 2013. Later he moved to Nanjing to work as a postdoc in the DAMPE collaboration. He then moved to the Technical University of Munich supported by the Humboldt Research Fellowship and moved to the Niels Bohr Institute as a postdoc. Since 2020, he is a faculty at the Purple Mountain Observatory. His main research topics are the dark matter indirect detection and high energy astrophysics.