Future Japanese X-ray TES Calorimeter Satellite: DIOS (Diffuse Intergalactic Oxygen Surveyor)
Future Japanese X-ray TES Calorimeter Satellite: DIOS (Diffuse Intergalactic Oxygen Surveyor)
复制标题
未来的日本X射线TES热量计卫星：DIOS（漫射星际氧测量仪）
DOI：
10.1007/s10909-015-1362-2
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发表时间：
2016
影响因子：
2
通讯作者：
S.Yamada et al.
中科院分区：
文献类型：
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作者：
S.Yamada et al.
我们介绍未来日本 X 射线卫星任务漫射星际氧测量器 (DIOS) 的最新更新和进展。 DIOS 被提议作为 JAXA 的一项小型卫星任务，并将由 Epsilon 火箭发射。 DIOS 将继承 ASTRO-H 的传统，后者搭载基于半导体的微量热计，计划于 2016 年推出高分辨率 X 射线光谱仪。将采用 400 像素的过渡边缘传感器 (TES) 阵列，因此 DIOS 还将为下一个 ESA X 射线任务 ATHENA 提供关于 TES 操作和太空无冷冻剂冷却的宝贵经验。我们一直在完善卫星的整个设计，以满足下次呼叫对 Epsilon 有效载荷的要求。该任务的主要目标是通过检测 OVII 和 OVIII 离子的红移发射线，利用高分辨率 X 射线光谱来寻找暖热星系间介质。这些结果将对我们对“暗重子”的性质、它们的总量和空间分布以及它们在宇宙学时间尺度上的演化的理解产生重大影响。
We present the latest update and progress on the future Japanese X-ray satellite mission Diffuse Intergalactic Oxygen Surveyor (DIOS). DIOS is proposed to JAXA as a small satellite mission, and would be launched with an Epsilon rocket. DIOS would carry on the legacy of ASTRO-H, which carries semiconductor-based microcalorimeters and is scheduled to be launched in 2016, in high-resolution X-ray spectroscopy. A 400-pixel array of transition-edge sensors (TESs) would be employed, so DIOS would also provide valuable lessons for the next ESA X-ray mission ATHENA on TES operation and cryogen-free cooling in space. We have been sophisticating the entire design of the satellite to meet the requirement for the Epsilon payload for the next call. The primary goal of the mission is to search for warm-hot intergalactic medium with high-resolution X-ray spectroscopy by detecting redshifted emission lines from OVII and OVIII ions. The results would have significant impacts on our understanding of the nature of “dark baryons,” their total amount and spatial distribution, as well as their evolution over cosmological timescales.