SPIRou:加拿大-法国-夏威夷望远镜的近红外分光偏振计/高精度速度计
SPIRou: the near-infrared spectropolarimeter/high-precision velocimeter for the Canada-France-Hawaii telescope
摘要:
SPIRou是一个近红外埃歇尔分光偏振计和高精度速度计,正在建造中,作为加拿大-法国-夏威夷望远镜的下一代仪器。它的设计涵盖了一个非常宽的同时近红外光谱范围(0.98-2.35 μm),分辨率为73.5K,提供了低质量恒星的非偏振和偏振光谱,径向速度(RV)精度为1米/秒。SPIRou的主要科学目标是探测低质量恒星周围可居住的超级地球,并研究磁场如何影响恒星/行星形成。在2014年春季成功完成最终设计审查后,SPIRou目前正在建设中,计划于2017年底看到第一盏灯。我们提出了SPIRou的光学和机械设计的关键方面的概述。
英文摘要:
SPIRou is a near-IR échelle spectropolarimeter and high-precision velocimeter under construction as a next-generation instrument for the Canada-France-Hawaii-Telescope. It is designed to cover a very wide simultaneous near-IR spectral range (0.98-2.35 μm) at a resolving power of 73.5K, providing unpolarized and polarized spectra of low-mass stars at a radial velocity (RV) precision of 1m/s. The main science goals of SPIRou are the detection of habitable super-Earths around low-mass stars and the study of how critically magnetic fields impact star / planet formation. Following a successful final design review in Spring 2014, SPIRou is now under construction and is scheduled to see first light in late 2017. We present an overview of key aspects of SPIRou's optical and mechanical design.
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