近红外精密径向速度探测仪
A Pathfinder Instrument for Precision Radial Velocities in the Near-Infrared
摘要：
我们已经设计并测试了一个面内阶梯光栅摄谱仪配置调查精确的径向速度从地面近红外观测。光谱仪的光谱范围为0.9-1.7 mm，光谱分辨率为R = 50，000，并使用液氮冷却的HAWAII 1 K探测器。通过在近红外Y波段使用两种不同的仪器装置对地球自转进行的重复测量，在几个小时的时间内产生了约10 m/s RMS的径向速度。最新的仪器配置已经实现了7 m/s的未分级RMS，并表明红外径向速度精度可能能够接近在光学波长处实现的精度。
英文摘要：
We have designed and tested an in-plane echelle spectrograph configured to investigate precision radial velocities from ground-based near-infrared observations. The spectrograph operates across the spectral range of 0.9-1.7 mm at a spectral resolution of R = 50,000, and uses a liquid nitrogen-cooled HAWAII 1K detector. Repeated measurements of the Earth's rotation via integrated Sunlight with two different instrument arrangements in the near infrared Y band have produced radial velocities with ~10 m/s RMS over a period of several hours. The most recent instrument configuration has achieved an unbinned RMS of 7 m/s and suggests that infrared radial velocity precisions may be able to approach those achieved at optical wavelengths.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
