Collaborative Research: K-KIDS -- A Reconnaissance of the 5000 Nearest K Dwarfs

合作研究：K-KIDS——对 5000 个最近的 K 矮人的勘察

• 批准号: 1910130
• 负责人: Todd Henry
• 金额: $ 32.67万
• 依托单位: Georgia State University Research Foundation, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-10-01 至 2023-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1910130&HistoricalAwards=false
• 关键词: Collaborative; Research; KIDS; Reconnaissance; 5000

The environments of the 5000 nearest K Dwarf star systems will be explored to answer the question, "How does our Sun compare to other stars"? Surveys will be carried out to provide a detailed understanding of star and planetary formation processes. It will characterize how unique is our Sun and tell us how our Sun (a G Dwarf star) compares to other G,K,M Dwarf stars, provide fundamental statistics that will drive theoretical work on star and planet formation and provide a list of stars where other solar systems may be found, allowing future astrobiologists to evaluate the environment around these stars. Students will be involved in this research and gain STEM expertise in science, mathematics, computer science, and engineering through their participation in this research program. Novel observing programs on binary stars will be developed for the undergraduate students at Southern Connecticut State University. This program K-KIDs, a reconnaissance of the 5000 nearest K Dwarfs, will study the K dwarf stars using three surveys. A wide field survey to characterize companion stars, a high resolution speckle imaging survey to split single stars into doubles and higher order multiples at spatial scales similar to our Solar System, and a high resolution spectroscopic survey to reveal close stellar binaries and discover low mass brown dwarfs and Jovian planet companions and estimate metallicities and ages for the stars. This will allow the discovery of how unusual our Sun is, provide fundamental statistics on G,K and M Dwarf type stars for theoretical studies on star and planet formation, and provide a candidate list for locating other nearby solar systems in the galaxy.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

我们将探索离我们最近的5000个K矮星系统的环境，以回答“我们的太阳与其他恒星相比如何”这个问题。将进行调查，以提供对恒星和行星形成过程的详细了解。它将描述我们的太阳有多独特，并告诉我们我们的太阳（一颗G矮星）与其他G，K，M矮星相比如何，提供基本的统计数据，将推动恒星和行星形成的理论工作，并提供可能发现其他太阳系的恒星列表，使未来的天体生物学家能够评估这些恒星周围的环境。学生将参与这项研究，并通过参与这项研究计划获得科学、数学、计算机科学和工程方面的STEM专业知识。将为南康涅狄格州立大学的本科生开发新的双星观测程序。这个名为K- kids的项目是对5000个最近的K矮星进行侦察，将通过三次调查来研究K矮星。一个宽视场的调查，以表征伴星，一个高分辨率的散斑成像调查，将单星分成双星和高阶倍数在空间尺度上类似于我们的太阳系，和一个高分辨率的光谱调查，以揭示紧密的恒星双星，发现低质量的褐矮星和类木行星伴星，并估计金属丰度和年龄的恒星。这将有助于发现我们的太阳有多不寻常，为恒星和行星形成的理论研究提供G、K和M矮型恒星的基本统计数据，并为定位银河系中其他附近的太阳系提供候选名单。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

The Solar Neighborhood XLVIII: Nine Giant Planets Orbiting Nearby K Dwarfs, and the CHIRON Spectrograph’s Radial Velocity Performance

太阳邻域 XLVIII：围绕 K 矮星运行的九颗巨行星，以及 CHIRON 摄谱仪的径向速度性能

• DOI: 10.3847/1538-3881/ac082a
• 发表时间: 2021
• 期刊: The Astronomical Journal
• 作者: Paredes, Leonardo A.;Henry, Todd J.;Quinn, Samuel N.;Gies, Douglas R.;Hinojosa-Goñi, Rodrigo;James, Hodari-Sadiki;Jao, Wei-Chun;White, Russel J.
• 通讯作者: White, Russel J.