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New facilities like TESS are about to boost the number of known terrestrialplanets around M stars. Stellar X-rays can severely affect planetaryatmospheres but at the time of the latest census (in 2013) more than 40% of theM dwarfs within only 10pc lacked a deep X-ray observation. We propose tocomplete our survey begun in AO18 collecting X-ray/UV data for the remaining 9M0--4 dwarfs within 10pc (out of a total of 150) as a legacy for coronalphysics and future stellar/exoplanetary modeling work. [truncated! Please see actual data for full text]

诸如凌日系外行星巡天卫星（Transiting Exoplanet Survey Satellite, TESS）这类新型观测设施，将显著提升M型恒星周围已知类地行星的数量。恒星X射线会对行星大气层造成严重影响，但在2013年的最新普查中，10秒差距（pc）范围内的M矮星中，有超过40%尚未开展过深度X射线观测。我们提议完成第18号天文观测周期（AO18）启动的巡天项目，为10秒差距范围内剩余的9颗M0-M4型矮星（该样本总计150颗）收集X射线与紫外波段数据，以此作为日冕物理学及未来恒星、系外行星建模研究的宝贵遗留数据集。【内容已截断，请查看原始数据以获取完整文本】