The Next-Generation Infrared Space Mission: SPICA
The Next-Generation Infrared Space Mission: SPICA
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DOI：
10.1051/spica/200901001
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
T. Nakagawa
中科院分区：
文献类型：
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作者：
T. Nakagawa
SPICA （Space Infrared Telescope for Cosmology and Astrophysics）是一项针对中远红外天文任务进行优化的天文任务，采用低温冷却的3米级（目前设计为3.5米）望远镜。它的高空间分辨率和前所未有的灵敏度将使我们能够解决当今天文学中的一些关键问题，从宇宙的恒星形成历史到行星的形成。为了减少整个任务的质量，SPICA将在环境温度下发射，并在轨道上通过船上的机械冷却器和有效的辐射冷却系统进行冷却，这些组合使我们能够在太空中拥有一个3米级的冷却（5 K）望远镜，总重量适中（4吨）。SPICA是一个国际组织。日本负责整个系统的整合，其活动现已被批准为JAXA的预项目。欧洲对SPICA项目贡献的评估研究是在欧空局2015-2025年宇宙展望框架下进行的。美国和韩国的参与也被广泛讨论。SPICA的目标启动年份是2018年。
We present an overview of SPICA (Space Infrared Telescope for Cosmology and Astrophysics), which is an astronomical mission optimized for mid- and far-infrared astronomy with a cryogenically cooled 3-m class (3.5 m in the current design) telescope. Its high spatial resolution and unprecedented sensitivity will enable us to address a number of key problems in present-day astronomy, ranging from the star-formation history of the universe to the formation of planets. To reduce the mass of the whole mission, SPICA will be launched at ambient temperature and cooled down on orbit by mechanical coolers on board with an efficient radiative cooling system, a combination of which allows us to have a 3-m class cooled (5 K) telescope in space with moderate total weight (4t). SPICA is an international mission. Japan is in charge of the whole integration of the system, and its activity is now approved as a pre-pro ject at JAXA. The assessment study on the European contribution to the SPICA pro ject has been carried out under the framework of the ESA Cosmic Vision 2015-2025. US and Korean participations are also being discussed extensively. The target launch year of SPICA is 2018.