Development of Fixed-delay Interferometry for Detecting Extra-solar Planets

用于探测太阳系外行星的固定延迟干涉测量技术的发展

• 批准号: 0243090
• 负责人: Jian Ge
• 金额: $ 68.29万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-01 至 2004-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0243090&HistoricalAwards=false
• 关键词: Development; Fixed; delay; Interferometry; Detecting

The Principle Investigator will develop techniques for acquiring high resolution Doppler radial velocity measurements using a fixed-delay interferometer. The proposed instrument can provide Doppler resolution limited only by intrinsic stellar line widths, and independent of the spectral dispersion of the post-disperser used for separating fringes in different wavelengths. The technique will be used for detection and characterization of extra-solar planetary systems around solar-type stars. The PI will explore the feasibility of using this technique for multi-object radial velocity observation and planet detection around B, A, early F, and late M type stars. The technique and instrumentation can be adapted to a wide variety of telescopes. Eventually, this technique could be used in a full sky survey for planets around hundreds of thousands of stars. The detection and study of extra-solar planets has broad impact to the astronomical community and has a proven appeal to the public at large.

原理调查员将开发使用固定延迟干涉仪获取高分辨率多普勒径向速度测量的技术。该仪器可以提供仅受固有恒星谱线宽度限制的多普勒分辨率，并且与用于分离不同波长条纹的后色散器的光谱色散无关。这项技术将用于探测和表征太阳类型恒星周围的太阳系外行星系统。PI将探索将该技术用于B、A、早期F和晚期M型恒星周围的多目标径向速度观测和行星探测的可行性。这项技术和仪器可以适用于各种望远镜。最终，这项技术可以用于对数十万颗恒星周围的行星进行全天观测。对太阳系外行星的探测和研究对天文学产生了广泛的影响，并已证明对广大公众具有吸引力。