EOS P96 - 1. Introduction

Doc:
Issue
Date
Page
VLT-MAN-ESO-14650-4942
P96
24.06.2015
11 of 161
ESO, Karl-Schwarzschild-Str. 2, 85748 Garching bei München, Germany
1. Introduction
Figure 1: 3D CAD view of the X-shooter spectrograph at the Cassegrain focus of one of the VLT
Unit Telescopes.
Table 1: X-shooter characteristics and observing capabilities
Wavelength range
300-2500 nm split in 3 arms
UV-blue arm
Range: 300-550 nm in 12 orders
Resolution: 5100 (1" slit)
Slit width: 0.5”, 0.8”, 1.0”, 1.3”, 1.6”, 5.0”
Detector: 4k x 2k E2V CCD
Visual-red arm
Range: 550-1000 nm in 14 orders
Resolution: 8800 (0.9" slit)
Slit width: 0.4”, 0.7”, 0.9”, 1.2”, 1.5”, 5.0”
Detector: 4k x 2k MIT/LL CCD
Near-IR arm
Range: 1000-2500 nm in 16 orders
Resolution: 5100 (0.9" slit)
Slit width: 0.4”, 0.6”, 0.9”, 1.2”, 1”, 5.0”,
0.6”JH, 0.9”JH
Detector: 2k x 1k Hawaii 2RG
Slit length
11” (SLIT) or 12.6” (IFU)
Beam separation
Two high efficiency dichroics
Atmospheric dispersion compensation
In the UV-Blue and Visual-red arms
Disabled on Aug. 1st ,2012
Integral field unit
Acquisition and guiding camera
1.8" x 4" reformatted into 0.6" x 12"
1.5’x1.5’ +Johnson and SDSS filters