• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Conference on ground-based and airborne instrumentation for astronomy IV >ISAS: interferometric stratospheric astrometry for solar system
【24h】

ISAS: interferometric stratospheric astrometry for solar system

机译：ISAS：用于太阳系的干涉平流层天文​​学

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

摘要

The Interferometric Stratospheric Astrometry for Solar system (ISAS) project is designed for high precisionastrometry on the brightest planets of the Solar System, with reference to many field stars, at the milli-arcsec(mas) level or better. The science goal is the improvement on our knowledge of the dynamics of the Solar System,complementing the Gaia observations of fainter objects. The technical goal is the validation of basic concepts forthe proposed Gamma Astrometric Measurement Experiment (GAME) space mission, in particular, combinationof Fizeau interferometry and coronagraphic techniques by means of pierced mirrors, intermediate angle dual fieldastrometry, smart focal plane management for increased dynamic range and pointing correction. We discussthe suitability of the stratospheric environment, close to space conditions, to the astrometric requirements. Theinstrument concept is a multiple field, multiple aperture Fizeau interferometer, observing simultaneously fourfields, in order to improve on the available number of reference stars. Coronagraphic solutions are introducedto allow observation of internal planets (Mercury and Venus), as well as of external planets over a large fractionof their orbit, i.e. also close to conjunction with the Sun. We describe the science motivation, the proposedexperiment profile and the expected performance.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
机译：太阳系干涉平流层占星术（ISAS）专为在太阳系最亮的行星上进行高精度天体测量而设计，并参考了许多毫秒级或更高质量的野外恒星。科学目标是提高对太阳系动力学知识的了解，以补充对微弱物体的盖亚观测结果。技术目标是验证拟议的伽玛占星术测量实验（GAME）太空任务的基本概念，特别是通过穿孔镜，中间角双场法，智能焦平面管理以提高动态范围以及指点校正。我们讨论了接近空间条件的平流层环境对天文测量要求的适用性。仪器的概念是一种多视场，多孔径菲索（Fizeau）干涉仪，同时观测四个视场，以提高参考恒星的可用数量。引入了日冕解决方案以允许观察内部行星（水星和金星）以及在其轨道的很大一部分（即也与太阳接近）上的外部行星。我们描述了科学动机，拟议的实验概况和预期的性能。©（2012）COPYRIGHT光电仪器工程师协会（SPIE）。摘要的下载仅允许个人使用。

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