The Enhanced Resolution Imager and Spectrograph for the VLT

Instrumentation: adaptive optics; Instrumentation: high angular resolution; Instrumentation: miscellaneous; Instrumentation: spectrographs; Diffraction limited; Enhanced resolutions; Instrumentation:high angular resolution; Instrumentation:spectrographs; Laser guide star; Natural guide star; Operational lifetime; Wave-front sensing; Astronomy and Astrophysics; Space and Planetary Science; astro-ph.IM

Abstract :

[en] The Enhanced Resolution Imager and Spectrograph (ERIS) is an instrument that both extends and enhances the fundamental diffraction limited imaging and spectroscopy capability for the VLT. It replaces two instruments that were being maintained beyond their operational lifetimes, combines their functionality on a single focus, provides a new wavefront sensing module for natural and laser guide stars that makes use of the Adaptive Optics Facility, and considerably improves on their performance. The observational modes ERIS provides are integral field spectroscopy at 1a 2.5 μm, imaging at 1a 5 μm with several options for high-contrast imaging, and long-slit spectroscopy at 3â 4 μm. The instrument is installed at the Cassegrain focus of UT4 at the VLT and, following its commissioning during 2022, has been made available to the community.

Research center :

STAR - Space sciences, Technologies and Astrophysics Research - ULiège [BE]

Disciplines :

Space science, astronomy & astrophysics

Author, co-author :

Davies, R.; Max-Planck-Institut für Extraterrestrische Physik, Garching, Germany

Absil, Olivier ; Université de Liège - ULiège > Département d'astrophysique, géophysique et océanographie (AGO)

Agapito, G.; Inaf - Osservatorio Astrofisico di Arcetri, Firenze, Italy

Agudo Berbel, A.; Max-Planck-Institut für Extraterrestrische Physik, Garching, Germany

Baruffolo, A.; Inaf - Osservatorio Astronomico di Padova, Padova, Italy

Biliotti, V.; Inaf - Osservatorio Astrofisico di Arcetri, Firenze, Italy

Black, M.; Stfc Uk Atc, Royal Observatory Edinburgh, Edinburgh, United Kingdom

Bonaglia, M.; Inaf - Osservatorio Astrofisico di Arcetri, Firenze, Italy

Bonse, M.; Eth Zurich, Institute of Particle Physics and Astrophysics, Zurich, Switzerland

Briguglio, R.; Inaf - Osservatorio Astrofisico di Arcetri, Firenze, Italy

More authors (75 more)

Language :

English

Title :

The Enhanced Resolution Imager and Spectrograph for the VLT

Publication date :

June 2023

Journal title :

Astronomy and Astrophysics

ISSN :

0004-6361

eISSN :

1432-0746

Publisher :

EDP Sciences

Volume :

674

Pages :

A207

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

https://www.aanda.org/10.1051/0004-6361/202346559/pdf

European Projects :

H2020 - 819155 - EPIC - Earth-like Planet Imaging with Cognitive computing

Funders :

EU - European Union [BE]

Funding text :

The consortium would like to thank the many people who have contributed to the project in numerous different ways, in some cases ‘behind the scenes’, both within the partner institutes as well as at ESO in Garching and at Paranal. The authors would also like to acknowledge the help of J. Kammerer, E. Huby, T. Stolker, and J. Sanchez for preparing and reducing the SAM observations of HIP 18714. J.H. gratefully acknowledges the financial support from the Swiss National Science Foundation under project grant number 200020_200399. The sparse aperture masking mode has received funding from the French National Research Agency (ANR-13-JS05-0005) and from the European Research Council (ERC) under the Horizon 2020 research and innovation programme (Grant agreement no. 639248). The research of FS leading to these results has received funding from the European Research Council under ERC Starting Grant agreement 678194 (FALCONER). Parts of this work have been carried out within the framework of the National Centre of Competence in Research PlanetS supported by the Swiss National Science Foundation under grants 51NF40_182901 and 51NF40_205606. S.P.Q. and A.M.G. acknowledge the financial support of the SNSF. The development of the FPC mode has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement no. 819155), and from the Wallonia-Brussels Federation (grant for Concerted Research Actions). The paper makes use of public data released from the ERIS commissioning observations at the VLT Yepun (UT4) telescope under Programmes ID 60.A-9917.

Commentary :

20 pages with 29 figures; accepted for A&A (minor changes)

Available on ORBi :

since 21 November 2023

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