An Astrometric Census of the Solar Neighborhood with Pan-STARRS1

使用 Pan-STARRS1 对太阳邻域进行天体测量普查

• 批准号: 1313455
• 负责人: Eugene Magnier
• 金额: $ 51.21万
• 依托单位: University of Hawaii
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-01 至 2019-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1313455&HistoricalAwards=false
• 关键词: Astrometric; Census; Solar; Neighborhood; Pan

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.

这项工作将使用Pan-STARRS 1调查对附近的低质量恒星和褐矮星进行调查。这将提供对运动学上选定的高速低质量恒星和亚恒星物体的普查，包括太阳25秒差距内几百个低质量物体的光谱、光谱类型分类和光度函数。褐矮星是一种亚恒星天体，其质量比行星大，但质量不足以维持核心的氢聚变。 这些和其他低质量的恒星物体，如M矮星，我们对它们的了解非常少，但可能对理解星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可居住区搜索系外行星的主要目标，这些区域的条件适合水以液体形式存在。 该小组将使用夏威夷的望远镜（泛星1，CFHT，UH 88？，IRTF，Gemini），以获得光学和近红外波长的光度测定和光谱测定。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。