VISUAL DETECTION OF 1981S13, SATURNS 18 SATELLITE, AND ITS ROLE IN THE ENCKE GAP

被引：86

作者：

SHOWALTER, MR

机构：

[1] Center for Radar Astronomy, Stanford University, Stanford

来源：

NATURE | 1991年 / 351卷 / 6329期

关键词：

D O I：

10.1038/351709a0

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Careful inspection of many images taken by the Voyager spacecraft reveals the presence within the Encke gap of Saturn's eighteenth satellite. Its existence had been inferred from gravitational disturbances seen in Voyager data, and it falls close to the predicted orbit. Its shepherding effect is responsible for keeping the Encke gap open, and it may also be the progenitor of a narrow ringlet within the gap.

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页码：709 / 713

页数：5

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