VEGA: Visible spEctroGraph and polArimeter for the CHARA array: principle and performance

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Volume 508 / No 2 (December III 2009)

A&A, 508 2 (2009) 1073-1083

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Table A.2:

Optical paths in meters introduced by the beam selector on the Chara output pupil image.
	S1	S2	W1	W2	E2	E1
V1	0	DF	DT+DF	DT+2F	2DT+2DF	2DT+3DF
V2	DV	DF+DV	DT+DF+DV	DT+2DF+DV	2DT+2DF+DV	2DT+3DF+DV
V3	2DV	DF+2DV	DT+DF+2DV	DT+2DF+2DV	2DT+2DF+2DV	2DT+3DF+DV
V4	3DV	DF+3DV	DT+DF+3DV	DT+2DF+3DV	2DT+2DF+3DV	2DT+3DF+DV
V5	4DV	DF+4DV	DT+DF+4DV	DT+2DF+4DV	2DT+2DF+4DV	2DT+3DF+DV
V6	5DV	DF+5DV	DT+DF+5DV	DT+2DF+5DV	2DT+2DF+5DV	2DT+3DF+DV

$\rm DT=1.2446$ m is the distance before the selector between the beams of telescopes S2 and W1 and between W2 and E2. $\rm DF=0.5842$ m is the distance between two beams before the selector and for telescopes located on the same arm (East, West or South). $\rm DV=0.0762$ m is the distance between two beams after the selector.

Source LaTeX | All tables | In the text

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