Good Vibrations: Report from the Commissioning of CRIRES

Details Good Vibrations: Report from the Commissioning of CRIRES Good Vibrations: Report from the Commissioning of CRIRES

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006msngr.126...32k&link_type=abstract

The Messenger, vol. 126, p. 32-36

Physics

Optics

14

Scientific paper

CRIRES is a cryogenic, pre-dispersed, infrared echelle spectrograph designed to provide a nominal resolving power λ/Δλ of 105 between 1000 and 5000 nm for a nominal slit width of 0.2'. The CRIRES installation at the Nasmyth focus A of the 8-m VLT UT1 (Antu) marks the completion of the original instrumentation plan for the VLT. A curvature sensing adaptive optics system feed is used to minimise slit losses and to provide 0.2' spatial resolution along the slit. A mosaic of four Aladdin InSb-arrays packaged on custom-fabricated ceramic boards has been developed. It provides for an effective 4096 × 512 pixel focal plane array to maximise the free spectral range covered in each exposure. Insertion of gas cells is possible in order to measure radial velocities with high precision. Measurement of circular and linear polarisation in Zeeman sensitive lines for magnetic Doppler imaging is foreseen but not yet fully implemented. A cryogenic Wollaston prism on a kinematic mount is already incorporated. The retarder devices are located close to the Unit Telescope focal plane. Here we briefly recall the major design features of CRIRES and describe the commissioning of the instrument including a report of extensive laboratory testing and a preview of astronomical results. Thanks to the strong efforts of the CRIRES commissioning team and all other ESO staff involved, it was possible to include the instrument in the general ESO call for proposals for Period 79.

Affiliated with

Also associated with

No associations

Rating

Good Vibrations: Report from the Commissioning of CRIRES does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Good Vibrations: Report from the Commissioning of CRIRES, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Good Vibrations: Report from the Commissioning of CRIRES will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1550068