CRIRES\(^{+}\) on sky at the ESO Very Large Telescope

CRIRES\(^{+}\) on sky at the ESO Very Large Telescope

The CRyogenic InfraRed Echelle Spectrograph (CRIRES) Upgrade project CRIRES\(^{+}\) extended the capabilities of CRIRES. It transformed this VLT instrument into a cross-dispersed spectrograph to increase the wavelength range that is covered simultaneously by up to a factor of ten. In addition, a new...

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Veröffentlicht in:arXiv.org 2023-01
Hauptverfasser: Dorn, R J, Bristow, P, Smoker, J V, Rodler, F, Lavail, A, Accardo, M, van den Ancker, M, Baade, D, Baruffolo, A, Courtney-Barrer, B, Blanco, L, Brucalassi, A, Cumani, C, Follert, R, A Haimerl, Hatzes, A, Haug, M, Heiter, U, Hinterschuster, R, Hubin, N, Ives, D J, Jung, Y, Jones, M, J-P Kirchbauer, Klein, B, Kochukhov, O, Korhonen, H H, Köhler, J, J-L Lizon, Moins, C, Molina-Conde, I, Marquart, T, Neeser, M, Oliva, E, Pallanca, L, Pasquini, L, Paufique, J, Piskunov, N, Reiners, A, Schneller, D, Schmutzer, R, Seemann, U, Slumstrup, D, Smette, A, Stegmeier, J, Stempels, E, Tordo, S, Valenti, E, Valenzuela, J J, Vernet, J, Vinther, J, Wehrhahn, A
Format: Artikel
Sprache:eng
Schlagworte:
Cut off wavelength
Detectors
European Southern Observatory
Focal plane devices
Infrared telescopes
Physics - Instrumentation and Methods for Astrophysics
Very Large Telescope
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Zusammenfassung:The CRyogenic InfraRed Echelle Spectrograph (CRIRES) Upgrade project CRIRES\(^{+}\) extended the capabilities of CRIRES. It transformed this VLT instrument into a cross-dispersed spectrograph to increase the wavelength range that is covered simultaneously by up to a factor of ten. In addition, a new detector focal plane array of three Hawaii 2RG detectors with a 5.3 \(\mu\)m cutoff 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 at the beginning of 2020 and successfully commissioned and verified for science operations during 2021, partly remotely from Europe due to the COVID-19 pandemic. The instrument was subsequently offered to the community from October 2021 onwards. This article describes the performance and capabilities of the upgraded instrument and presents on sky results.
ISSN:2331-8422
DOI:10.48550/arxiv.2301.08048