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Akito Tajitsu, Wako Aoki, Tomoyasu Yamamuro, Image Slicer for the Subaru Telescope High Dispersion Spectrograph, Publications of the Astronomical Society of Japan, Volume 64, Issue 4, 25 August 2012, 77, https://doi.org/10.1093/pasj/64.4.77
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Abstract
We report on the design, manufacturing, and performance of the image slicer for the High Dispersion Spectrograph on Subaru Telescope. This instrument is a Bowen–Walraven type image slicer, providing five images of 0|$.\!\!\!”$|3 |$\times$| 1|$.\!\!\!”$|5 with a resolving power of |$R$||$=$||$\lambda/\delta \lambda$||$=$| 110000. The resulting resolving power and line profiles have been investigated in detail, including estimates of the defocusing effect on the resolving power. The throughput in a wavelength range of from 400 to 700 nm is higher than 80%, thereby improving the efficiency of the spectrograph under a seeing condition of 0|$.\!\!\!”$|7 by a factor of 1.8.