论文标题

Proxima Centauri-最近与Astrosat,Chandra和HST同时观察到的最近的行星主机

Proxima Centauri -- the nearest planet host observed simultaneously with AstroSat, Chandra and HST

论文作者

Lalitha, S., Schmitt, J. H. M. M., Singh, K. P., Schneider, P. C., Loyd, R. O. Parke, France, K., Predehl, P., Burwitz, V., Robrade, J.

论文摘要

我们最近的恒星邻居Proxima Centauri是一颗低质量恒星,具有光谱打字,并在其宜居区域内托管旋转的地球状行星。然而,地球的可居住性取决于宿主恒星染色体和冠状活性的高能辐射。我们报告了Astrosat,Chandra和HST对Proxima Centauri进行的观察,作为多波长同时观察运动的一部分。使用软X射线数据,我们探测恒星的不同活性状态。我们研究冠状温度,排放措施和丰度。最后,我们将结果与早期观察结果进行了比较

Our nearest stellar neighbour, Proxima Centauri, is a low mass star with spectral typedM5.5 and hosting an Earth-like planet orbiting within its habitable zone. However, the habitability of the planet depends on the high-energy radiation of the chromo-spheric and coronal activity of the host star. We report the Astrosat, Chandra and HST observation of Proxima Centauri carried out as part of the multi-wavelength simultaneous observational campaign. Using the soft X-ray data, we probe the different activity states of the star. We investigate the coronal temperatures, emission measures and abundance. Finally, we compare our results with earlier observations of Proxima Centauri

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