The astrometry of the natural planetary satellites applied to their dynamics before and after Gaia

被引：16

作者：

Arlot, Jean-Eudes ^{[1
]}

Desmars, Josselin ^{[1
]}

Lainey, Valery ^{[1
]}

Robert, Vincent ^{[1
]}

机构：

[1] CNRS, Observ Paris, IMCCE, USTL,LASA,IPSA,UPMC, F-75014 Paris, France

来源：

PLANETARY AND SPACE SCIENCE | 2012年 / 73卷 / 01期

关键词：

Astrometry; GAIA; Natural satellites; Celestial mechanics; EPHEMERIDES; JUPITER;

D O I：

10.1016/j.pss.2012.10.002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The natural planetary satellites are observed since centuries in order to understand their dynamics and their evolution. A high level astrometric accuracy is necessary for this purpose. The arrival of Gala makes necessary to perform the ground-based observations in the scope of the future data provided by Gaia. About 50 observations by Gala of each satellite will be available, and the Gaia star catalogue will allow to reduce the astrometric observations with a high level accuracy. This is true for observations made at the present time, made in the future, and made in the past thanks to a new reduction of old observations such as photographic plates. We analyse the different status of the satellites depending on the system of which they belong. This will decide the astrometric observing programmes of the natural planetary satellites for the next years. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：66 / 69

页数：4