亮星系外行星搜寻与动力学研究

本项目研究当前天文学前沿领域——系外行星的探测和动力学中的重要科学问题，内容包括:(1)利用南京大学在国家天文台阿里观测站的时域天文台，开展亮星与矮星系外行星的凌星巡天；(2)结合已经发现的系外行星系统后随观测，完备行星系统参数，并开展行星系统统计与动力学研究；(3)进行太阳系散射盘天体动力学研究及关联天体观测。通过这些研究，在观测方面发现一批新的系外行星候选体，并通过视向速度方法和凌星中心时刻变化方法等证认一批系外行星，完备部分系外行星的轨道参数。在理论方面揭示行星系统的统计和动力学新规律，建立形成各种类型系外行星系统的理论模型；通过对太阳系散射盘天体的观测和动力学研究，加深对太阳系早期动力学演化的理解。通过本项目的观测和理论研究，最终建立更加完整的行星系统形成和演化模型。

This project studies some key problems in the current frontiers of astronomy : the detection and dynamics of exoplanets, including: (1) using the Time Domain Observatory (TIDO) of Nanjing University at the Ali Observation Site of the National Observatory to do sky survey for exoplanets around bright and dwarf stars; (2) doing follow-up observations to improve planetary system parameters, and discovering laws of statistical and dynamical evolutions combing all the discovered exoplanet systems; (3) developing the dynamical evolution model for the solar-system Scattered-disk objects and observing associated celestial objects. With these research, in the aspect of observation, to discover a new batch of exoplanet candidates, and to confirm a number of new exoplanets using radial velocity and transit timing variation methods, to improve the parameters of some known systems. In the aspect of theory, to reveal new laws of statistics and dynamics of planetary systems, and to establish theoretical models for the formation of various types of exoplanet systems. The observations and dynamics of solar-system scattered-disk objects will help deepen the understanding of the early dynamics of the solar system. Through these observations and theoretical studies, this project aims to establish a more comprehensive model of planetary formation and evolution.