An Astrometric Census of the Solar Neighborhood with Pan-STARRS1

这项工作将使用Pan-STARRS 1对附近的低质量恒星和棕矮星进行调查。这将提供运动学选择的高速低质量恒星和亚恒星的普查，包括视差，光谱类型分类和距离太阳25秒差距内数百个低质量物体的光度函数。褐矮星是一种比行星质量更大的亚恒星天体，但其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，人们对它们知之甚少，但它们可能对理解恒星和行星的形成起着重要的作用。这项研究在太阳附近发现的许多物体将成为在宜居带（条件适合水以液体形式存在的区域）搜索系外行星的主要目标。研究小组将在夏威夷使用望远镜(Pan-STARRS 1， CFHT, UH 88？（IRTF，双子座），以获得光学和近红外波长的光度和光谱学。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训练，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.