本项目利用我国五百米口径球面射电望远镜（FAST）和美国一百米口径绿坝望远镜（GBT）来对MaNGA巡天样本中所有星系进行中性氢观测。在项目执行期间，我们计划利用GBT来观测较低红移（z<0.05）的星系，用FAST观测中性氢含量较少的星系以及较高红移（0.05<z<0.15）的星系。我们的团队已经利用FAST和GBT进行了一些观测和测试，并取得了很好的结果。通过本项目的实施，我们将会建成一个既有中性氢观测，又包含光学积分场单元光谱观测数据、星系环境信息以及诸多斯隆数字化巡天相关的辅助数据的大星系样本（约1万个星系）。本项目计划利用这些数据研究星系内部星族参数的分布与中性氢及星系环境和并合历史的关系。同时本项目将为未来中性氢射电干涉阵观测提供选源基础。

We propose to do HI follow-up observations for MaNGA galaxies using FAST and GBT. We plan to observe low-redshift (z<0.05) galaxies with GBT and observe "high-redshift"(0.05<z<0.15) galaxies and galaxies with low HI content with FAST. We have already done some test observations using FAST and GBT and the preliminary results are promising. Through this project, we will build a large sample (~10,000) of galaxies with HI data and optical IFU spectra, as well as complementary information such as environmental information derived from the SDSS data. The multi-wavelength data will give us some insight into relations between stellar population distribution, HI content and galaxy environment and merger histories. We will also be able to provide targets for future HI observations with interferometers.