Gemini Remote Access to CFHT ESPaDOnS Spectrograph
Gemini Remote Access to CFHT ESPaDOnS Spectrograph
Gemini Remote Access to CFHT ESPaDOnS Spectrograph
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333 μm<br />
(24.5 pxl)<br />
6 slices<br />
179 μm<br />
(13.3 pxl)<br />
3 slices<br />
(27.8 pxl)<br />
370 μm<br />
4 slices<br />
Optical Transmission Changes<br />
Mirror: Coating and Area<br />
Injection efficiency<br />
<strong>CFHT</strong> f/8 <strong>Gemini</strong> f/16<br />
Ag; 50.4 m 2<br />
fiber = 100 μm<br />
aperture ~ 1.6”<br />
Pseudo-slit size<br />
fiber = 165 μm<br />
aperture ~ 1.2”<br />
9 μm<br />
32 μm<br />
Al; 8.59 m 2<br />
Fiber Length<br />
19 μm<br />
GRACES<br />
~ 270 m<br />
0.7 pxl 1.4 pxl 2.4 pxl<br />
<strong>ESPaDOnS</strong>@CF<br />
HT in Star-only<br />
mode R=80K<br />
<strong>ESPaDOnS</strong>@<strong>CFHT</strong><br />
in Polar/Star+Sky<br />
mode R=65K<br />
<strong>ESPaDOnS</strong>@Ge<br />
mini (GRACES)<br />
R=55K<br />
<strong>Gemini</strong> Science Meeting, July 16-20 2012, San Francisco, CA.