Ultralightweight x-ray telescope missions: ORBIS and GEO-X
Ultralightweight x-ray telescope missions: ORBIS and GEO-X
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超轻型 X 射线望远镜任务：ORBIS 和 GEO-X
DOI：
10.1117/1.jatis.4.4.046001
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Graziella Branduardi-Raymont
中科院分区：
文献类型：
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作者：
Yuichiro Ezoe;Yoshizumi Miyoshi;Satoshi Kasahara;Tomoki Kimura;Kumi Ishikawa;Masaki Fujimoto;Kazuhisa Mitsuda;Hironori Sahara;Naoki Isobe;Hiroshi Nakajima;Takaya Ohashi;Harunori Nagata;Ryu Funase;Munetaka Ueno;Graziella Branduardi-Raymont
迈向x射线天文学时代，下一代x射线光学不可或缺。为了满足比箔光学望远镜更轻但具有更好的角度分辨率<1角分的望远镜的需求，我们正在开发基于微加工技术的微孔x射线光学望远镜。利用薄硅晶片上的微孔侧壁，这种类型的x射线望远镜可能是迄今为止最轻的。日本的两个任务，ORBIS和GEO-X，将携带这个望远镜。ORBIS是一个监测超大质量黑洞的小型x射线天文学任务，而GEO-X是一个探测地球磁层的小型任务。这两个任务都需要一个超轻（小于1千克）的望远镜，在极短的焦距（小于30厘米）下具有中等好的角分辨率（小于10角分）。我们计划在2020年左右的这两个任务中展示这种类型的望远镜。
Toward an era of x-ray astronomy, next-generation x-ray optics are indispensable. To meet a demand for telescopes lighter than the foil optics but with a better angular resolution <1 arcmin, we are developing micropore x-ray optics based on micromaching technologies. Using sidewalls of micropores through a thin silicon wafer, this type can be the lightest x-ray telescope ever achieved. Two Japanese missions, ORBIS and GEO-X, will carry this telescope. ORBIS is a small x-ray astronomy mission to monitor supermassive blackholes, while GEO-X is a small exploration mission of the Earth’s magnetosphere. Both missions need an ultralightweight (<1 kg) telescope with moderately good angular resolution (<10 arcmin) at an extremely short focal length (<30 cm). We plan to demonstrate this type of telescope in these two missions around 2020.