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Strengths of Subaru Telescope

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Spectrograph<br />

No moving parts<br />

Stability, Easier operation<br />

Fiber slit length ~140 mm<br />

(fiber spacing =230 mm)<br />

0.38-1.3mm: VPH gratings 280 mm diam. each<br />

Resolving power = l/dl ~ 3000<br />

We build four <strong>of</strong> these<br />

[Vivès et al. SPIE]<br />

[Gunn et al. SPIE]

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