• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nature >Neptune's capture of its moon Triton in a binary-planet gravitational encounter
【24h】

Neptune's capture of its moon Triton in a binary-planet gravitational encounter

机译：海王星在双行星引力中遇到的月亮海卫一

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Triton is Neptune's principal satellite and is by far the largest retrograde satellite in the Solar System ( its mass is similar to 40 per cent greater than that of Pluto). Its inclined and circular orbit lies between a group of small inner prograde satellites and a number of exterior irregular satellites with both prograde and retrograde orbits. This unusual configuration has led to the belief that Triton originally orbited the Sun before being captured in orbit around Neptune(1-3). Existing models(4-6) for its capture, however, all have significant bottlenecks that make their effectiveness doubtful. Here we report that a three-body gravitational encounter between a binary system (of similar to 10(3)-kilometre-sized bodies) and Neptune is a far more likely explanation for Triton's capture. Our model predicts that Triton was once a member of a binary with a range of plausible characteristics, including ones similar to the Pluto - Charon pair.
机译：海卫一是海王星的主要卫星，也是迄今为止太阳系中最大的逆行卫星（其质量比冥王星大40％）。它的倾斜和圆形轨道位于一组小型的内部顺行卫星和许多同时具有顺行和逆行轨道的外部不规则卫星之间。这种不寻常的构造导致人们相信，特里顿最初是在围绕海王星（1-3）的轨道上被捕获之前绕太阳运行的。然而，现有的模型（4-6）都存在很大的瓶颈，使它们的有效性令人怀疑。在这里，我们报告说，二元系统（类似于10（3）公里大小的天体）与海王星之间的三体重力相遇是特里顿捕获的更可能的解释。我们的模型预测，特里顿曾经是具有一系列合理特征的双星的成员，其中包括与冥王星-卡隆对相似的特征。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号