The HET Radial Velocity Program for Planetary Systems around M Dwarfs

对低质量恒星的视向速度（RV）观测可以用来发现和确定小到几个地球质量的行星的质量。RV观测作为RV监测的一部分，以及光度卫星任务（现在是TESS，未来是PLATO）对过境候选者的后续观测需求非常大。在优先项目的社区中，我们发现RV项目缺乏，特别是在过境任务的后续方面，因为这个领域发展得特别快。在我们的项目中，我们以PI在探测和表征m星周围行星方面的经验为基础，我们希望将这种专业知识作为优先计划的一部分。作为10米霍比-埃伯利望远镜的合作伙伴，我们有独特的机会进入适居带行星发现者（HPF），这是一个世界领先的RV设施，用于研究低质量恒星。有了HPF，我们想在大约10颗精心挑选的M矮星样本中进行详细的观测活动。其中大约一半是由其他调查观察到的，显示出有趣但尚未重要的特征，另一半将是TESS任务中的过境行星候选者。

Radial velocity (RV) observations of low-mass stars can be used to discover and determine the mass of planets down to a few Earth-masses. The need for RV observations as part of RV monitoring as well as follow-up of transit candidates from photometric satellite missions (TESS now and PLATO in the future) is very large. In the community of the Priority Program we identify a lack of RV programs, in particular for the follow-up of transit missions because this field is developing particularly quickly. In our project, we build on the PI's experience in detection and characterization of planets around M-stars, and we want to develop this expertise as part of the Priority Program. As partner of the 10 m Hobby-Eberly-Telescope, we have the unique opportunity to access the Habitable Zone Planet Finder (HPF), a world-leading RV facility for the investigation of low-mass stars. With HPF, we want to carry out a detailed observing campaign in a sample of about ten handpicked M dwarf stars. About half of them were observed by other surveys showing interesting but not yet significant signatures, the other half will be transiting planet candidates from the TESS mission.