地球与行星物理论评(中英文)2024,Vol.55Issue(5):537-551,15.DOI:10.19975/j.dqyxx.2023-051
利用固体潮研究岩石天体的深部结构
Studying the deep structure of rocky celestial body using solid tide
摘要
Abstract
As a result of significant advances in geophysics,we have developed a rich arsenal of geophysical methods to infer the internal structure of the Earth.However,the method we could use to infer the internal struc-ture of celestial bodies other than the Earth are still very limited,often relying on geodetic data from orbital probes,landers and astronomical observations.Among these geodetic method,solid tides are of great importance for the study of the celestial bodies'internal structure.Solid tidal deformation and the tidal dissipation provide key inform-ation about the internal structure of the rocky celestial bodies,especially the deep structure which contains core-mantle boundary and core.In this paper,we present a comprehensive overview of the research of the deep struc-ture of rocky celestial bodies using solid tidal parameters,including tidal Love numbers and tidal quality factor.First,the basic theory of solid tides,tidal parameters,and viscoelastic models are introduced,and the relationship between the internal structural parameters of the celestial bodies and their solid tidal response is established.This is followed by a review and summary of existing work using solid tide parameters to study the internal structure of the rocky celestial bodies like Mercury,Venus,Mars,and the Moon.Examples include the study of the viscoelastic structure at the base of the lunar mantle using tidal parameters,and the use of tidal parameters to improve the uncer-tainty of the Martian core radius demonstrate that using solid tidal parameters is an effective method of constrain-ing the deep structure of the celestial bodies.We further provide the contribution of high-precision observations to be acquired by future missions to the study of internal structure.However,there still are some problems in study the internal structure of celestial bodies by solid tidal parameters.For instance,the variability of dissipation strength between different viscoelastic models,the mismatch between short-period experimental data and macroscopic long-period theoretical calculations of viscoelastic models,and so on.We also discuss and analyzes these problems and provides a vision of future research direction.关键词
固体潮/潮汐响应/黏弹性/内部结构/岩石天体Key words
solid tides/tidal response/viscoelasticity/internal structure/rocky celestial body分类
天文学引用本文复制引用
肖驰,李斐,鄢建国,叶茂,原田雄司,郝卫峰,邓青云..利用固体潮研究岩石天体的深部结构[J].地球与行星物理论评(中英文),2024,55(5):537-551,15.基金项目
国家自然科学基金资助项目(42030110,42241116) (42030110,42241116)
中国地震局地震研究所基本科研业务经费资助项目(IS202236335) (IS202236335)
地震科技星火计划资助项目(XH24025YC)Supported by the National Natural Science Foundation of China(Grant Nos.42030110,42241116),the Scientific Research Fund of Institute of Seismology,China Earthquake Administration(Grant No.IS202236335),and the Earthquake Science and Technology Spark Plan(Grant No.XH24025YC) (XH24025YC)