小行星表面热物理模型

季江徽; 余亮亮

doi:10.3981/j.issn.1000-7857.2014.28/29.015

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科技导报 ›› 2014, Vol. 32 ›› Issue (28/29) : 104-108. DOI: 10.3981/j.issn.1000-7857.2014.28/29.015

综述文章

小行星表面热物理模型

作者信息 -

1. 中国科学院紫金山天文台, 南京 210008;
2. 中国科学院行星科学重点实验室, 南京 210008

作者简介:

季江徽, 研究员, 研究方向为太阳系小天体动力学与物理、系外行星形成与动力演化、深空探测轨道与技术, 电子信箱: jijh@pmo.ac.cn;余亮亮, 硕士研究生, 研究方向为小行星热物理, 电子信箱: yullmoon@pmo.ac.cn

Progress of Thermophysical Investigations on Asteroids

Author information -

1. Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, China;
2. Key Laboratory of Planetary Sciences, Chinese Academy of Sciences, Nanjing 210008, China

摘要

回顾小行星热物理研究中两种热物理模型TPM(thermal physical model)和ATPM(advanced thermo physical model),讨论了其科学应用及适用范围,分析了其在未来小行星探测任务中可能的工程应用价值。基于TPM 可推算小行星的表面热惯量性质,利用ATPM 不仅可以研究小行星的表面热惯量与表面粗糙度等特性,还能深入研究小行星的YORP 效应(Yarkovsky-O'Keefe-Radzievskii-Paddack effect)。研究表明,在目前的观测精度下,TPM 和ATPM 均可有效研究并揭示小行星基本热物理性质。

Abstract

In this work, we review two kinds of thermophysical models widely adopted in the thermophysical investigations of asteroids, i.e., TPM and ATPM, and further discuss their scientific applications and applicable scopes in the investigations. In general, TPM can be used to derive thermal inertia of the asteroid, whereas ATPM can not only be applied to the of thermophysical characteristics of the asteroids such as thermal inertia, surface roughness, etc., but also reveal the YORP effect of asteroids. It is shown that TPM and ATPM are applicable to effective exploration of the asteroids'thermophysical properties in terms of present observation accuracy. The likely engineering application for future asteroid missions is also briefly discussed.

导出引用

季江徽, 余亮亮. 小行星表面热物理模型[J]. 科技导报, 2014, 32(28/29): 104-108 https://doi.org/10.3981/j.issn.1000-7857.2014.28/29.015

JI Jianghui, YU Liangliang. Progress of Thermophysical Investigations on Asteroids[J]. Science & Technology Review, 2014, 32(28/29): 104-108 https://doi.org/10.3981/j.issn.1000-7857.2014.28/29.015

中图分类号： P134.2

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