An Astrometric Census of the Solar Neighborhood with Pan-STARRS1

这项工作将利用泛星1号调查对附近的低质量恒星和棕矮星进行调查。这将提供以运动学方式选择的高速低质量恒星和恒星下天体的普查，包括在太阳25秒内的数百个低质量天体的视差、光谱类型分类和光度函数。褐矮星是一种质量比行星大的亚恒星天体，但质量不足以维持其核心的氢聚变。这些和其他低质量的恒星物体，如M-矮星，人们了解得很少，但可能在理解恒星和行星的形成方面发挥着重要作用。这项研究在太阳附近发现的许多天体将成为在宜居带搜索系外行星的主要目标，宜居带是水以液体形式存在的合适条件的地区。该团队将使用夏威夷的望远镜(泛星1号，CFHT，UH 88？，IRTF，双子座)来获得光学和近红外波长的光度和光谱。这项工作将涉及研究生和本科生的参与，他们将接受科学研究方面的培训，包括数据挖掘技术。

This work will conduct a survey of nearby low-mass stars and Brown Dwarfs using the Pan-STARRS 1 survey. This will provide a census of kinematically-selected high-velocity low-mass stars and substellar objects, including parallaxes, spectral type classifications and luminosity functions of several hundred low-mass objects within 25 parsecs of the Sun. Brown Dwarfs are substellar objects which have more mass than planets, but not enough mass to sustain hydrogen fusion in their cores. These and other low-mass stellar objects, such as M-dwarfs, are very poorly understood, yet may play important roles for understanding star and planet formation. Many of the objects discovered in the solar neighborhood by this study will be prime targets for searches of exoplanets in habitable zones, regions where conditions are right for water to exist in the liquid form. The team will use telescopes in Hawaii (Pan-STARRS 1, CFHT, UH 88?, IRTF, Gemini) to obtain photometry and spectroscopy at optical and near-infrared wavelengths. This work will involve the participation of graduate and undergraduate students, who will be trained in scientific research, including data-mining techniques.techniques.