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CRIRES+ on sky: High spectral resolution at infrared wavelength enabling better science at the ESO VLT
European Southern Observ, Karl Schwarzschild Str 2, D-85748 Munich, Germany..
European Southern Observ, Karl Schwarzschild Str 2, D-85748 Munich, Germany..
European Southern Observ, Alonso Cordova 3107, Santiago, Chile..
European Southern Observ, Alonso Cordova 3107, Santiago, Chile..
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2022 (English)In: Ground-Based And Airborne Instrumentation For Astronomy IX / [ed] Evans, CJ, Bryant, JJ, Motohara, K, SPIE - International Society for Optical Engineering, 2022, Vol. 12184, article id 121841FConference paper, Published paper (Refereed)
Abstract [en]

CRIRES+ extended the capabilities of CRIRES, the CRyogenic InfraRed Echelle Spectrograph. It transformed this VLT instrument into a cross-dispersed spectrograph to increase the wavelength range that is covered simultaneously by a factor of ten. In addition, a new detector focal plane array of three Hawaii 2RG detectors with a 5.3 mu m cut-off wavelength replaced the existing detectors. Amongst many other improvements a new spectropolarimetric unit was added and the calibration system has been enhanced. The instrument was installed at the VLT on Unit Telescope 3 beginning of 2020 and successfully commissioned and verified for science operations during 2021, partly remote from Europe due to the pandemic. The instrument was subsequently offered to the community from October 2021 onwards. This article describes the performance and capabilities of this development and presents on sky results.

Place, publisher, year, edition, pages
SPIE - International Society for Optical Engineering, 2022. Vol. 12184, article id 121841F
Series
Proceedings of SPIE, ISSN 0277-786X, E-ISSN 1996-756X
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:uu:diva-488311DOI: 10.1117/12.2629969ISI: 000860684700037ISBN: 978-1-5106-5350-4 (electronic)ISBN: 978-1-5106-5349-8 (print)OAI: oai:DiVA.org:uu-488311DiVA, id: diva2:1716192
Conference
Conference on Ground-Based and Airborne Instrumentation for Astronomy IX, JUL 17-22, 2022, Montreal, Canada
Available from: 2022-12-05 Created: 2022-12-05 Last updated: 2022-12-05Bibliographically approved

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Piskunov, NikolaiStempels, Eric

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