RISTRETTO: high-resolution spectroscopy at the diffraction limit of the VLT

Christophe Lovis; Nicolas Blind; Bruno Chazelas; Jonas G. Kühn; Ludovic Genolet; Ian Hughes; Michaël Sordet; Robin Schnell; Martin Turbet; Thierry Fusco; Jean François Sauvage; Maddalena Bugatti; Nicolas Billot; Janis Hagelberg; Eddy Hocini; Olivier Guyon

doi:10.1117/12.2627923

RISTRETTO: high-resolution spectroscopy at the diffraction limit of the VLT

Christophe Lovis, Nicolas Blind, Bruno Chazelas, Jonas G. Kühn, Ludovic Genolet, Ian Hughes, Michaël Sordet, Robin Schnell, Martin Turbet, Thierry Fusco, Jean François Sauvage, Maddalena Bugatti, Nicolas Billot, Janis Hagelberg, Eddy Hocini, Olivier Guyon

Optical Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

12 Scopus citations

Abstract

RISTRETTO is a visible high-resolution spectrograph fed by an extreme adaptive optics (XAO) system, to be proposed as a visitor instrument on ESO VLT. The main science goal of RISTRETTO is the detection and atmospheric characterization of exoplanets in reflected light, in particular the temperate rocky planet Proxima b. RISTRETTO will be able to measure albedos and detect atmospheric features in a number of exoplanets orbiting nearby stars for the first time. It will do so by combining a high-contrast AO system working at the diffraction limit of the telescope to a high-resolution spectrograph, via a 7-spaxel integral-field unit (IFU) feeding single-mode fibers. Further science cases for RISTRETTO include the study of accreting protoplanets such as PDS 70 b & c through spectrally-resolved Hα emission; and spatially-resolved studies of Solar System objects such as icy moons and the ice giants Uranus and Neptune. The project is in an advanced design phase for the spectrograph and IFU/fiber-link sub-systems, and a preliminary design phase for the AO front-end. Construction of the spectrograph and IFU/fiber-link will start at the end of 2022. RISTRETTO is a pathfinder instrument in view of similar developments at ESO ELT, in particular the SCAO-IFU mode of ELT-ANDES and the future ELT-PCS instrument.

Original language	English (US)
Title of host publication	Ground-based and Airborne Instrumentation for Astronomy IX
Editors	Christopher J. Evans, Julia J. Bryant, Kentaro Motohara
Publisher	SPIE
ISBN (Electronic)	9781510653498
DOIs	https://doi.org/10.1117/12.2627923
State	Published - 2022
Event	Ground-based and Airborne Instrumentation for Astronomy IX 2022 - Montreal, Canada Duration: Jul 17 2022 → Jul 22 2022

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	12184
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Ground-based and Airborne Instrumentation for Astronomy IX 2022
Country/Territory	Canada
City	Montreal
Period	7/17/22 → 7/22/22

Keywords

Exoplanets
H-alpha emission
Proxima b
XAO
biosignatures
high contrast
high-resolution spectroscopy
reflected light

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.2627923

Cite this

Lovis, C., Blind, N., Chazelas, B., Kühn, J. G., Genolet, L., Hughes, I., Sordet, M., Schnell, R., Turbet, M., Fusco, T., Sauvage, J. F., Bugatti, M., Billot, N., Hagelberg, J., Hocini, E., & Guyon, O. (2022). RISTRETTO: high-resolution spectroscopy at the diffraction limit of the VLT. In C. J. Evans, J. J. Bryant, & K. Motohara (Eds.), Ground-based and Airborne Instrumentation for Astronomy IX Article 121841Q (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 12184). SPIE. https://doi.org/10.1117/12.2627923

RISTRETTO: high-resolution spectroscopy at the diffraction limit of the VLT. / Lovis, Christophe; Blind, Nicolas; Chazelas, Bruno et al.
Ground-based and Airborne Instrumentation for Astronomy IX. ed. / Christopher J. Evans; Julia J. Bryant; Kentaro Motohara. SPIE, 2022. 121841Q (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 12184).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Lovis, C, Blind, N, Chazelas, B, Kühn, JG, Genolet, L, Hughes, I, Sordet, M, Schnell, R, Turbet, M, Fusco, T, Sauvage, JF, Bugatti, M, Billot, N, Hagelberg, J, Hocini, E & Guyon, O 2022, RISTRETTO: high-resolution spectroscopy at the diffraction limit of the VLT. in CJ Evans, JJ Bryant & K Motohara (eds), Ground-based and Airborne Instrumentation for Astronomy IX., 121841Q, Proceedings of SPIE - The International Society for Optical Engineering, vol. 12184, SPIE, Ground-based and Airborne Instrumentation for Astronomy IX 2022, Montreal, Canada, 7/17/22. https://doi.org/10.1117/12.2627923

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abstract = "RISTRETTO is a visible high-resolution spectrograph fed by an extreme adaptive optics (XAO) system, to be proposed as a visitor instrument on ESO VLT. The main science goal of RISTRETTO is the detection and atmospheric characterization of exoplanets in reflected light, in particular the temperate rocky planet Proxima b. RISTRETTO will be able to measure albedos and detect atmospheric features in a number of exoplanets orbiting nearby stars for the first time. It will do so by combining a high-contrast AO system working at the diffraction limit of the telescope to a high-resolution spectrograph, via a 7-spaxel integral-field unit (IFU) feeding single-mode fibers. Further science cases for RISTRETTO include the study of accreting protoplanets such as PDS 70 b & c through spectrally-resolved Hα emission; and spatially-resolved studies of Solar System objects such as icy moons and the ice giants Uranus and Neptune. The project is in an advanced design phase for the spectrograph and IFU/fiber-link sub-systems, and a preliminary design phase for the AO front-end. Construction of the spectrograph and IFU/fiber-link will start at the end of 2022. RISTRETTO is a pathfinder instrument in view of similar developments at ESO ELT, in particular the SCAO-IFU mode of ELT-ANDES and the future ELT-PCS instrument.",

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AU - Hughes, Ian

AU - Sordet, Michaël

AU - Schnell, Robin

AU - Turbet, Martin

AU - Fusco, Thierry

AU - Sauvage, Jean François

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AU - Hocini, Eddy

AU - Guyon, Olivier

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AB - RISTRETTO is a visible high-resolution spectrograph fed by an extreme adaptive optics (XAO) system, to be proposed as a visitor instrument on ESO VLT. The main science goal of RISTRETTO is the detection and atmospheric characterization of exoplanets in reflected light, in particular the temperate rocky planet Proxima b. RISTRETTO will be able to measure albedos and detect atmospheric features in a number of exoplanets orbiting nearby stars for the first time. It will do so by combining a high-contrast AO system working at the diffraction limit of the telescope to a high-resolution spectrograph, via a 7-spaxel integral-field unit (IFU) feeding single-mode fibers. Further science cases for RISTRETTO include the study of accreting protoplanets such as PDS 70 b & c through spectrally-resolved Hα emission; and spatially-resolved studies of Solar System objects such as icy moons and the ice giants Uranus and Neptune. The project is in an advanced design phase for the spectrograph and IFU/fiber-link sub-systems, and a preliminary design phase for the AO front-end. Construction of the spectrograph and IFU/fiber-link will start at the end of 2022. RISTRETTO is a pathfinder instrument in view of similar developments at ESO ELT, in particular the SCAO-IFU mode of ELT-ANDES and the future ELT-PCS instrument.

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RISTRETTO: high-resolution spectroscopy at the diffraction limit of the VLT

Abstract

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Keywords

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