太阳立体探测任务设想

Envisioning the solar stereo exploration mission

太阳空间探测在太阳物理前沿科学问题研究和空间天气预报应用研究方面具有重要的意义.人类在60余年的太阳空间探测活动中,取得了一系列重要成果,但仍存在诸多根本性重大问题有待解决.太阳立体探测可以克服单视角观测的局限,获取全方位、多要素的物理数据,促进解决太阳物理中的重大科学问题.本文介绍了太阳内部结构和磁场起源、太阳活动机理研究、太阳活动的全日球空间天气效应和空间天气预报模式研究4个科学目标,太阳立体探测任务空间布局、系统组成和探测器总体设计,以及太阳立体探测任务的有效载荷配置和主要技术指标.

Solar space exploration is of great importance in the study of cutting-edge solar physic problems and space weather forecasting applications.Over the past 60+years of exploration activities,people have made a series of significant achievements,but still left many root problems that need to be solved.Solar stereo exploration can overcome the limitation of single-view observation,and access to omni-directional&multi-element physical data,thus contributing to the solution of major scientific problems in solar physics.This paper first introduces four scientific objectives(the Sun’s internal structure and the origin of solar magnetic fields,the mechanism of solar activities,full heliospheric space weather effects of solar activities and space weather forecasting models),then explains the space layout and system composition of the solar stereo exploration mission and the probe’s system engineering,and ends up with the mission’s payload configuration and its major technical indicators.By orbiting the ecliptic and omni-dimensional exploration of polar regions,solar stereo exploration realizes solar detection from five views,equipped China with the ability to detect the Sun in all directions and will provide high-quality data for scientific research and space weather forecasting.These achievements will promote Chinese solar physics research to a global frontier academic position and greatly improve the performance on Chinese space weather forecast.Therefore,we could realize a leapfrogged development in the field of solar exploration and give strong support for China’s innovationdriven development strategy and the construction of a strong sci-tech nation.