The Exoplanet Frontiers: A Star Ages and M Star Planets

该奖项将支持两个项目。第一个将确定相对较热的A型光谱恒星的年龄，这些恒星的温度大约是太阳的两倍。该项目依赖于恒星半径和温度的准确测定，这将使光度与年龄/光度关系的进化模型之间的比较成为可能。第二个项目旨在发现M型冷星周围的行星。研究小组将确定这些凉爽恒星的准确位置和径向速度；如果有一颗大质量行星位于恒星附近，这些位置和速度将定期变化。这项研究将增加具有精确确定性质的恒星的数量，这对其他研究小组和测试恒星演化理论和行星系统形成的想法应该是有用的。该项目将支持两名博士生完成他们的论文，并将有助于正在进行的公共教育和推广工作。

This award will support two projects. The first will determine the ages of relatively hot stars of spectral type A, which have temperatures about twice that of the Sun. This project relies on accurate determination of stellar radii and temperatures, which will permit comparison between luminosities and evolutionary models of the age/luminosity relation. The second project aims to discover planets around cool stars of the M type. The research team will determine accurate positions and radial velocities of these cool stars; the positions and velocities will periodically change if a massive planet is located near the star.The research will increase the number of stars with precisely determined properties, which should be useful for other research groups and for testing stellar evolution theory and ideas about the formation pf planetary systems. The project will support two Ph.D. students through the completion of their dissertations, and will contribute to ongoing efforts in public education and outreach.