A Survey of Nearby Stars for Extrasolar Planets

沃格特，史蒂芬“太阳系外行星的邻近恒星调查“AST-9988358博士。沃格特正在继续进行一项非常成功的寻找附近恒星周围的巨行星（系外行星）的工作。 大约有1000颗主序星正在被监测，以确定行星伴星的引力扰动所造成的微小速度变化（约2-3米/秒）。 系外行星调查主要是利用凯克一号望远镜上的HIRES光谱仪进行的，并辅之以利克天文台进行的观测。 在该项目的持续时间内，大约12年，将有可能探测到木星和土星类似物，超过地球与太阳距离的五倍。 该项目的主要目标包括：（1）我们的太阳系是典型的还是独特的？ (2)系外行星的频率和物理特征是什么？ (3)在近圆形轨道上运行的遥远的巨行星是类地行星存在于适居带的先决条件吗？该项目的资金由NSF恒星天文天体物理学计划（AST/SAA）提供。

Vogt, Steven"A Survey of Nearby Stars for Extrasolar Planets"AST-9988358Dr. Vogt is continuing a very successful search for giant planets around nearby stars (exoplanets). Approximately 1000 main-sequence stars are being monitored for small velocity variations (~2-3 m/sec) imposed by the gravitational perturbations by planetary companions. The exoplanet survey is being conducted primarily with the HIRES spectrometer on the Keck I telescope, supplemented by observations conducted at Lick Observatory. Over the duration of the project, ~12 years, it will be possible to detect Jupiter and Saturn analogs beyond five times the Earth's distance from the Sun. The main goals of the project include: (1) Is our solar system typical or unique? (2) What are the frequency and physical characteristics of exoplanets? (3) Are distant giant planets in nearly circular orbits a prerequisite for the existence of terrestrial planets in the habitable zone?Funding for this project was provided by the NSF program for Stellar Astronomy & Astrophysics (AST/SAA).***