脉冲星的搜索和发现是500米口径球面射电望远镜(FAST)的重要科学目标，也是开展中子星物理以及相关天体物理研究的基础。本项目将基于FAST - Fermi-LAT国际合作，利用我们自己开发的人工智能选源算法过滤尚未公开的Fermi新样本（4FGL），对于疑似中子星的伽马射线点源等高能源进行FAST深度积分脉冲星搜索，系统发现新脉冲星。并对新发现的脉冲星开展多波段计时观测，深度研究相关天体物理过程，特别是完善银河系电子密度模型，更新理解近邻脉冲星分布。本项目将显著增加近邻脉冲星样本数量并提升我们对近邻电离星际介质、中子星分布的理解。

Pulsar search is one of the most important science goals of the Five-hundred-meter Aperture Spherical radio Telescope (FAST), and is the basis of neutron star physics and related astrophysics research. As co-signatories of this MoU (both on the FAST and Fermi-LAT sides), we propose to use FAST to carry out deep searches for new pulsars coincident with promising Fermi unassociated gamma-ray sources from the upcoming 4FGL Catalog, made available to us through the MoU. Then with the newly discovered pulsars, we will utilize FAST and Fermi-LAT for multi-wavelength timing observation, thus facilitating significant progresses for understanding the following topics, namely, the galactic electron density model and the nearby pulsar population. Our proposed work here will result in numerous new pulsar discoveries, shed new lights into our inventory of the ionized ISM and neutron star distribution.