• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Conference on Highly Innovative Space Telescope Concepts; Aug 22-23, 2002; Waikoloa, Hawaii, USA >Designing photometric patterns for exoplanet transit search on board COROT
【24h】

Designing photometric patterns for exoplanet transit search on board COROT

机译：在COROT上设计用于系外行星过境搜索的光度图案

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

COROT is a mission of the CNES space agency, to be launched in 2005 in a near Polar orbit. It is devoted to star seismology and to exoplanetary transit search. Five star fields chosen close to the galactic plane will be observed during the mission with a high photometric accuracy (relative). Each observation run will last 150 days monitoring continuously more than 6000 stars. This paper presents a new method designed to perform optimal aperture photometry on board in high density fields. We describe the way the photometric windows or patterns are defined and centered on the CCD around each target star, with the expected performances. Each pattern depends on the specific 2D profile of the point spread function (PSF) but also on the pointing jitter and on the tiny deformations of the telescopes. These patterns will be stored on board in order to define for each target star the optimal pattern which will produce the integrated flux to be measured. This method allows a significant increase of the sampling rate to aproximatively one measure per star each 8 mn).
机译：COROT是CNES航天局的一项任务，将于2005年在极地轨道附近发射。它专门用于恒星地震学和系外行星搜索。在任务期间，将以较高的光度精度（相对）观察到接近银河平面的五个星场。每次观测运行将持续150天，连续监测6000颗以上的恒星。本文提出了一种新方法，旨在在高密度场中执行板上最佳光圈测光。我们描述了定义光度窗口或图案并将其围绕每个目标恒星定位在CCD上的方式，以及预期的性能。每个图案都取决于点扩展函数（PSF）的特定2D轮廓，还取决于指向抖动和望远镜的微小变形。这些模式将存储在船上，以便为每个目标恒星定义最佳模式，该模式将产生要测量的积分通量。这种方法可以将采样率显着提高到每颗恒星每8百万个采样点（大约）。

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