(Cryogenic Infrared Echelle Spectrometer)
(high resolution IR echelle spectrometer)
CRIRES (Cryogenic Infrared Echelle Spectrometer)
is a high spectral-resolution infrared spectrograph
on European Southern Observatory Very Large Telescope (ESO VLT). Its resolution reaches 100,000
in the 1-5 μm range. Among its goals is radial velocity
measurements to study binary stars and extra-solar planets.
It is currently being upgraded and will be called CRIRES+.
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European Southern Observatory Very Large Telescope (ESO VLT)