ESO Instruments Summary Table

Instrument Spectral Coverage Observing Mode Spectral Resolution Multiplex Note Telescope
FORS2 optical
330 - 1100 nm
imaging (incl. configurable occulting bars), long slit and multi-object spectroscopy, spectropolarimetry, imaging polarimetry 260 - 2600 yes Spectroscopy with ~7' long slit, ~20" multi-slit, and laser-cut slit masks; high time resolution modes (imaging and spectroscopy) in visitor mode only; RRM VLT UT1
CRIRES IR 0.95-5.2 μm echelle, slit spectroscopy 100,000 - 50,000
no AO VLT UT1
UVES optical
300 - 1100 nm
echelle, image slicer, slit spectroscopy up to 80,000 (blue arm) / 110,000 (red arm) no long slit capability in single order; iodine cell; RRM VLT UT2
FLAMES optical
370 - 950 nm
multi-fibre echelle,integral field spectroscopy 6000 - 47000 yes 135 Medusa fibres; 15 deployable IFUs, one large IFU; GIRAFFE: single echelle order; 8 fibres to UVES VLT UT2
X-SHOOTER UV-optical-NIR
300 - 2500 nm
echelle, slit and integral field spectroscopy ~5000-17000 no full spectral coverage with one pointing; slit + IFU; RRM VLT UT2
VIMOS optical
360 - 1000 nm
imaging, multi-object spectroscopy, integral field spectroscopy 200-2500 yes IFU size on sky from 13"x13" to 54"x54"; multi-object spectroscopy (MOS) with 4 laser-cut slit masks; Imaging and MOS field of view 4 times 7'x8'. VLT UT3
ISAAC IR
1-5 μm
imaging, spectroscopy, polarimetry, fast photometry ~250-10000 no 2.5'x2.5' field of view (1-5μm), 73"x73" (3-5μm) subwindow readout capability; RRM
Expected to be decommissioned in 2012.
VLT UT3
VISIR mid-IR
5-13 μm, 17-24 μm
imaging, spectroscopy 150-30,000 no

field of view selectable: 19"x19" to 32" x 32" 

after the upgrade the new FOV of VISIR will be selectable between 46" x 46" and 78" x 78".

VLT UT3
NACO IR
1-4 μm
imaging, imaging polarimetry, spectroscopy, coronography (incl. 4 Quadrant Phase Mask, and Apodoizing Phase Plate), simultaneous differential imaging, sparse aperture masking (incl. w/polarimetry), Angular Differential Imaging (Pupil Tracking) <1500 no AO with visible and IR wave front sensor; laser guide star; no AO and Cube Mode available
Expected to be decommissioned in 2012.
VLT UT4
SINFONI near-IR
1.1 - 2.45 μm
integral field spectroscopy 1500-4000 no AO with natural and laser guide star; RRM VLT UT4
HAWK-I near-IR 0.85-2.5 μm imaging, fast photometry - - field: 7.5'x7.5', subwindow readout capability; RRM VLT UT4
AMBER near-IR
1.5 - 2.5 μm
spectro - interferometry R~30, 1500 or 12000 no 3 beam combiner - measures also closure phase; spatial resolution up to 3 mas at 2 μm VLTI - ATs
VLTI - UTs
HARPS optical
378-691nm
echelle, polarimetry 120,000 no 2 fibres, high accuracy 3.6m
EFOSC-2 optical
350 - 1100nm
imaging, spectroscopy, polarimetry, coronography ~1000 no imaging and spectroscopic polarimetry NTT
SOFI near-IR
1-2.5 μm
imaging, spectroscopy 600-2200 no - NTT
FEROS optical
350 - 920nm
echelle spectroscopy ~48,000 no - MPG/ESO 2.2m
WFI optical
350 - 1000 nm
imaging - - 30x30 arcmin sq. field MPG/ESO 2.2m
SHFI 211-370 GHz, 385-500 GHz and 1.25-1.39 THz heterodyne receiver - - - APEX
LABOCA 870 μm bolometer array - - 295 channels APEX
SABOCA 350 μm bolometer array - - 37 channels APEX
FLASH
280-370 GHz
dual-beam heterodyne receiver
- - PI instrument; simultaneous observations in four receiver backends of 4 GHz bandwidth APEX
Z-spec
190-308 GHz
broad-band spectrograph
250-300 - PI instrument APEX
CHAMP+
620-720 and 780-950 GHz
dual-beam heterodyne receiver
- - PI instrument; simultaneous mapping with 7 pixels in each band APEX
VIRCAM near-IR
0.8-2.2 μm
imaging - - 1.5 degree  x 1 degree field of view with 0.34" average pixel size VISTA
OmegaCAM optical              0.35-0.91 μm imaging - - 1 degree x 1 degree unvignetted field of view with 0.21" pixel size VST