The MKID Exoplanet Camera for Subaru SCExAO
The MKID Exoplanet Camera for Subaru SCExAO
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DOI：
10.1088/1538-3873/abc60f
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发表时间：
2020-10
影响因子：
3.5
通讯作者：
A. Walter;Neelay Fruitwala;Sarah Steiger;J. Bailey;N. Zobrist;Noah Swimmer;Isabel Lipartito;J. Smith;S. Meeker;C. Bockstiegel;G. Coiffard;Rupert Dodkins;P. Szypryt;Kristina Davis;M. Daal;B. Bumble;Giulia Collura;O. Guyon;J. Lozi;S. Vievard;N. Jovanovic;F. Martinache;T. Currie;B. Mazin
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文献类型：
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作者：
A. Walter;Neelay Fruitwala;Sarah Steiger;J. Bailey;N. Zobrist;Noah Swimmer;Isabel Lipartito;J. Smith;S. Meeker;C. Bockstiegel;G. Coiffard;Rupert Dodkins;P. Szypryt;Kristina Davis;M. Daal;B. Bumble;Giulia Collura;O. Guyon;J. Lozi;S. Vievard;N. Jovanovic;F. Martinache;T. Currie;B. Mazin
我们展示了 MKID 系外行星相机 (MEC)，这是一款 z 至 J 波段 (800–1400 nm) 积分场摄谱仪，位于莫纳克亚山斯巴鲁望远镜的斯巴鲁日冕极端自适应光学器件 (SCExAO) 后面，利用微波动感电感探测器 (MKID) 作为高对比度成像的支持技术。 MEC 是第一个永久部署的近红外 MKID 仪器，设计为既可作为 IFU 运行，又可作为 SCExAO 多 kHz 反馈环路中的焦平面波前传感器运行。 MKID 可读取的无噪声、快速时域信息允许直接探测快速散斑波动，这种波动目前限制了地面上大多数高对比度成像系统的性能，并将帮助 MEC 实现其在 2 λ/D 下达到 10−7 对比度的最终目标。在这里，我们概述了 MEC 的仪器详细信息，包括硬件、固件以及数据缩减和分析管道。然后我们讨论 MEC 当前的空中性能，并以未来的升级和计划作为结尾。
We present the MKID Exoplanet Camera (MEC), a z through J band (800–1400 nm) integral field spectrograph located behind The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) at the Subaru Telescope on Maunakea that utilizes Microwave Kinetic Inductance Detectors (MKIDs) as the enabling technology for high contrast imaging. MEC is the first permanently deployed near-infrared MKID instrument and is designed to operate both as an IFU, and as a focal plane wavefront sensor in a multi-kHz feedback loop with SCExAO. The read noise free, fast time domain information attainable by MKIDs allows for the direct probing of fast speckle fluctuations that currently limit the performance of most high contrast imaging systems on the ground and will help MEC achieve its ultimate goal of reaching contrasts of 10−7 at 2 λ/D. Here we outline the instrument details of MEC including the hardware, firmware, and data reduction and analysis pipeline. We then discuss MEC’s current on-sky performance and end with future upgrades and plans.