基于MaNGA和JINGLE巡天研究低红移星系的恒星形成历史和冷气体吸积过程

本项目将联合利用SDSS-IV/MaNGA积分场光谱数据和JINGLE分子谱线和亚毫米波连续谱观测数据，研究星系内部的空间分辨的物理性质与星系分子气体和尘埃含量的统计关系，主要内容包括：（1）星系分子含量与星系中恒星形成与熄灭的联系；（2）积分Kennicutt-Schmdit定律与空间分辨的星系性质的关系；（3）星系的尘埃与冷气体含量的经验定标关系。通过这些研究，本项目旨在获得星系内部空间分辨的恒星和电离气体性质与总体冷气体含量的统计关系，认识冷气体和尘埃含量对星系的恒星形成活动的熄灭过程、空间分辨的恒星形成率等重要物理过程的影响。

By jointly using the integral field spectroscopy from SDSS-IV/MaNGA and the CO spectra and sub-mm imaging from JINGLE, we propose to study the statistical links between the spatially-resolved physical properties of nearby galaxies and their cold gas and dust content. We will perform the following analyses: (1) connection between molecular gas content and the formation and quenching of stars in galaxies; (2) integrated Kennicutt-Schmidt Law and the relation with the spatially-resolved properties; (3) scaling relations between dust and cold gas content of galaxies. Through these studies, we aim to examine the statistical link of the internal, revolved stellar properties and ionized gas properties with the global cold gas content, thus understanding the effect of cold gas and dust on star formation quenching and resolved star formation law in galaxies.