astro-ph.IM astro-ph.CO
FAST drift scan survey for HI intensity mapping: II. stacking-based primary beam construction for FAST L-band 19 feeds at $1.4$ GHz
Xinyang Zhao Yichao Li Wenxiu Yang Furen Deng Yougang Wang Fengquan Wu Xin Wang Xiaohui Sun Xin Zhang Xuelei Chen