1. CRIRES+ on sky at the ESO Very Large Telescope : Observing the Universe at infrared wavelengths and high spectral resolution
- Author
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Dorn, R. J., Bristow, P., Smoker, J. V., Rodler, F., Lavail, Alexis, Accardo, M., van den Ancker, M., Baade, D., Baruffolo, A., Courtney-Barrer, B., Blanco, L., Brucalassi, A., Cumani, C., Follert, R., Haimerl, A., Hatzes, A., Haug, M., Heiter, Ulrike, Hinterschuster, R., Hubin, N., Ives, D. J., Jung, Y., Jones, M., Kaeufl, H. -u., Kirchbauer, J. -p., Klein, B., Kochukhov, Oleg, Korhonen, H. H., Koehler, J., Lizon, J-l., Moins, C., Molina-Conde, I., Marquart, Thomas, Neeser, M., Oliva, E., Pallanca, L., Pasquini, L., Paufique, J., Piskunov, Nikolai, Reiners, A., Schneller, D., Schmutzer, R., Seemann, U., Slumstrup, D., Smette, A., Stegmeier, J., Stempels, Eric, Tordo, S., Valenti, E., Valenzuela, J. J., Vernet, J., Vinther, J., Wehrhahn, Ansgar, Dorn, R. J., Bristow, P., Smoker, J. V., Rodler, F., Lavail, Alexis, Accardo, M., van den Ancker, M., Baade, D., Baruffolo, A., Courtney-Barrer, B., Blanco, L., Brucalassi, A., Cumani, C., Follert, R., Haimerl, A., Hatzes, A., Haug, M., Heiter, Ulrike, Hinterschuster, R., Hubin, N., Ives, D. J., Jung, Y., Jones, M., Kaeufl, H. -u., Kirchbauer, J. -p., Klein, B., Kochukhov, Oleg, Korhonen, H. H., Koehler, J., Lizon, J-l., Moins, C., Molina-Conde, I., Marquart, Thomas, Neeser, M., Oliva, E., Pallanca, L., Pasquini, L., Paufique, J., Piskunov, Nikolai, Reiners, A., Schneller, D., Schmutzer, R., Seemann, U., Slumstrup, D., Smette, A., Stegmeier, J., Stempels, Eric, Tordo, S., Valenti, E., Valenzuela, J. J., Vernet, J., Vinther, J., and Wehrhahn, Ansgar
- Abstract
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.
- Published
- 2023
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