Design of an IR imaging channel for the Keck Observatory SCALES instrument

Design of an IR imaging channel for the Keck Observatory SCALES instrument
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凯克天文台 SCALES 仪器的红外成像通道设计

DOI:
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发表时间:
2022
期刊:
Astronomical Telescopes + Instrumentation
影响因子:
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通讯作者:
E. Wang
E. Wang
中科院分区:
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文献类型:
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作者:
R. Banyal;Armirul Hasan;R. Kupke;Hari Mohan Varshney;Ajin Prakaesh;T. Sivarani;A. Skemer;N. MacDonald;S. Sallum;W. Deich;M. Fitzgerald;K. Govinda;C. Ratliff;R. Sethuram;D. Stelter;A. Surya;E. Wang

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下一代仪器命名为切片器与系外行星光谱学透镜阵列组合(SCALES),正在计划用于W。M.凯克天文台。SCALES将有一个积分场摄谱仪(IFS)和一个衍射限制成像通道来发现和光谱表征直接成像的系外行星。SCALES的成像通道在热红外波长(1-5 μm,目标为0.6-5 μm)下工作,可覆盖12 "× 12"的视场,具有低失真和高吞吐量。除了扩展中红外科学案例并为NIRC 2提供潜在的升级/替代方案外,成像通道的H2 RG探测器还可以拍摄瞳孔的高分辨率图像,以帮助对准过程。此外,成像相机也将有助于小字段采集IFS手臂。在这项工作中,我们提出的光学机械设计的成像仪,并评估其能力和性能。
A next-generation instrument named, Slicer Combined with Array of Lenslets for Exoplanet Spectroscopy (SCALES), is being planned for the W. M. Keck Observatory. SCALES will have an integral field spectrograph (IFS) and a diffraction-limited imaging channel to discover and spectrally characterize the directly imaged exoplanets. Operating at thermal infrared wavelengths (1-5 μm, and a goal of 0.6-5 μm), the imaging channel of the SCALES is designed to cover a 12′′ × 12′′ field of view with low distortions and high throughput. Apart from expanding the mid-infrared science cases and providing a potential upgrade/alternative for the NIRC2, the H2RG detector of the imaging channel can take high-resolution images of the pupil to aid the alignment process. Further, the imaging camera would also assist in small field acquisition for the IFS arm. In this work, we present the optomechanical design of the imager and evaluate its capabilities and performances.
DOI: 10.1117/12.2594802
发表时间: 2021-09
期刊: --
影响因子: --
作者:
R. Stelter;A. Skemer;C. Bourgenot
通讯作者: R. Stelter;A. Skemer;C. Bourgenot
SCALES设计:凯克天文台2-5微米日冕积分场摄谱仪
DOI: 10.1117/12.2630577
发表时间: 2022
期刊: --
影响因子: --
作者:
Skemer A
通讯作者: Skemer A