• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Conference on space telescopes and instrumentation >Microarcsecond Astrometric Observatory Theia : From Dark Matter to Compact Objects and Nearby Earths
【24h】

Microarcsecond Astrometric Observatory Theia : From Dark Matter to Compact Objects and Nearby Earths

机译：微秒的天文观测台Theia：从暗物质到紧凑物体和附近地球

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Theia is a logical successor to Gaia, as a focused, very high precision astrometry mission which addresses two key science objectives of the ESA Cosmic Vision program: the nature of dark matter and the search for habitable planets. Theia addresses a number of other science cases strongly synergistic with ongoing/planned missions, such as the nature of compact objects, motions of stars in young stellar clusters, follow-up of Gaia objects of interest. The "point and stare" operational mode will enable Theia to answer some of the most profound questions that the results of the Gaias survey will ask. Extremely-high-precision astrometry at l-μas level can only be reached from space. The Theia spacecraft, which will carry a 0.8-m telescope, is foreseen to operate at L2 for 3,5 years. The preliminary Theia mission assessment allowed to identify a safe and robust mission architecture that demonstrates the mission feasibility within the Soyuz ST launch envelope and a small M-class mission cost cap. We present here the features of the mission that has been submitted to the last ESA M4 call in January 2015.
机译：Theia是Gaia的逻辑后继产品，它是一项专注的，非常高精度的天体测量任务，致力于解决ESA宇宙视觉计划的两个关键科学目标：暗物质的性质和寻找可居住的行星。 Theia处理了许多其他与正在进行的/计划中的任务具有强烈协同作用的科学案例，例如紧凑物体的性质，年轻恒星团中恒星的运动，Gaia感兴趣物体的跟踪。 “定点凝视”操作模式将使Theia能够回答Gaias调查结果所提出的一些最深刻的问题。只能从太空达到l-μas级的极高精度天文测量法。 Theia宇宙飞船将搭载0.8米的望远镜，预计将在L2运行3.5年。 Theia的初步任务评估可以确定安全可靠的任务架构，该架构可证明联盟号ST发射范围内的任务可行性以及较小的M级任务成本上限。我们在此介绍2015年1月举行的上一次ESA M4电话会议的任务功能。

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