CRIRES - CRyogenic high-resolution InfraRed Echelle Spectrograph


The upgraded CRIRES is a cryogenic high-resolution cross-dispersed infrared echelle spectrograph, developed by ESO. It is located at the Nasmyth B focus of UT3. The CRIRES upgrade project is described here.

Before the upgrade, the original CRIRES was in operation from P79 through P93. An overview for the original (pre-upgrade, pre-August 2014) CRIRES can be found clicking this link

Publications based on data obtained with the original CRIRES instrument (data taken up to August 2014) should quote the following reference paper: Käufl, H.U. et al. 2004, SPIE, 5492, 1218. Data taken with the upgraded CRIRES should additionally reference Dorn, R.J. et al., ESO Messenger, 2014, 156, p7

Contact Information

  • Questions related to proposal preparation, service mode, and visitor mode observations should be addressed via the contact form at  ESO Operations Helpdesk.
  • Please, send us your general feedback, comments, suggestions, or report errors and inaccurate statements in the web pages and manuals also via this contact form.

Content of these pages

The following items are available on all the CRIRES pages, using the bar on the left.

  • Overview: a short description of the instrument
  • News: list of changes affecting the instrument and/or its pages.
  • Instrument Description: all the important parameters of the instrument.
  • Manuals: links to all the documents related to CRIRES.
  • Tools: a collection of useful tools and informations for preparing and analyzing the CRIRES observations.
  • Instrument Operations Team
  • Visitor Instructions: Instrument specific instructions for Visiting Astronomers
  • Science: Science done with CRIRES, incl. during Science Verification