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The recent discovery of a Jupiter-sized planet orbiting a very young 11 Myr oldmid M dwarf is unprecedented in its promise for the investigation of how planetsaround low mass stars evolve. Substantial evolution of the planet.s atmosphereshrinking the overall planet radius is expected in its future. We propose anobservation with the XMM-Newton.s EPIC cameras to investigate the current levelof X-ray irradiation of the atmosphere that along with the EUV is thought todrive atmospheric mass loss particularly within the first few hundred Myr. Ourdirect measurement will be a key input to evolution simulations which we willrun to better understand this remarkable planet.s future. [truncated! Please see actual data for full text]

最近发现一颗木星大小的行星绕一颗年仅11 Myr的中M型矮星运行，这一发现为研究低质量恒星周围行星的演化提供了前所未有的契机。预计该行星未来大气将发生显著演化，导致其整体半径缩小。我们提议利用XMM-Newton的EPIC相机开展观测，以探究该行星大气当前的X射线辐照水平——该辐照与EUV（Extreme Ultraviolet）共同被认为是驱动大气质量损失的关键因素，尤其在最初的数亿年内。我们的直接测量结果将作为演化模拟的核心输入，通过这些模拟，我们能更深入地理解这颗非凡行星的未来。[内容截断！请参阅实际数据获取完整文本]