Re-commissioning of the VLT/UT4 telescope after the Deformable Secondary Mirror installation

P. Hibon; P. Hammersley; F. Selman; G. Hau; P. Duhoux; A. Agnello; I. Arranda; R. Arsenault; I. Blanchard; S. Cerda; S. Egner; E. Johnston; D. Parraguez; C. Reyes; E. Vernet

doi:10.26698/ao4elt5.0120

Re-commissioning of the VLT/UT4 telescope after the Deformable Secondary Mirror installation

P. Hibon^*, P. Hammersley, F. Selman, G. Hau, P. Duhoux, A. Agnello, I. Arranda, R. Arsenault, I. Blanchard, S. Cerda, S. Egner, E. Johnston, D. Parraguez, C. Reyes, E. Vernet

^*Corresponding author for this work

Research output: Contribution to conference › Paper › peer-review

Abstract

During the 2nd semester of 2016, a new Deformable Secondary Mirror (DSM), part of the Adaptive Optics Facility Project at Paranal Observatory, was installed on the Unit Telescope 4. Starting end of November 2016, we then re-commissioned the telescope and the following three instruments : HAWK-I, MUSE and SINFONI. It is important to understand how a DSM, even if used in non-adaptive optics mode (i.e., in its rest/at position), can impact the operations and the quality of the observations. We discuss here the results of this telescope and instrument re-commissioning, the challenges and problems we met, and compare the new performance to the ones obtained previously with the traditional Dornier Secondary Mirror.

Original language	English
DOIs	https://doi.org/10.26698/ao4elt5.0120
Publication status	Published - 2017
Externally published	Yes
Event	5th Adaptive Optics for Extremely Large Telescopes, AO4ELT 2017 - Tenerife, Canary Islands, Spain Duration: 25 Jun 2017 → 30 Jun 2017 https://web.archive.org/web/20200117115411/https://research.iac.es/congreso/AO4ELT5/pages/proceedings.html https://web.archive.org/web/20240710213944/http://research.iac.es/congreso/AO4ELT5/index.html

Conference

Conference	5th Adaptive Optics for Extremely Large Telescopes, AO4ELT 2017
Abbreviated title	AO4ELT5
Country/Territory	Spain
City	Tenerife, Canary Islands
Period	25/06/17 → 30/06/17
Other	The fifth Adaptive Optics for Extremely Large Telescopes (AO4ELT5) meeting will be taking place in June 2017 at the Hotel Botánico in Puerto de la Cruz, Tenerife. One of the major challenges that face the future extremely large aperture telescopes (ELT's) is adaptive optics, and the goal of the meeting is to gather specialists to review and discuss the latest developments on this field. The topics of the conference include ELT’s current design in terms of AO systems, related instruments and science goals, and also pathfinder projects planned or implemented on existing telescopes, including solar telescopes, which provide relevant results for the next ELT’s design phase. Special attention will be given to new developments in several areas, such as mirrors, laser technologies, wavefront sensing and control, and new post-processing tools required to increase the image quality and increase the scientific return of the instruments.
Internet address	https://web.archive.org/web/20200117115411/https://research.iac.es/congreso/AO4ELT5/pages/proceedings.html https://web.archive.org/web/20240710213944/http://research.iac.es/congreso/AO4ELT5/index.html

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10.26698/ao4elt5.0120

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Hibon, P., Hammersley, P., Selman, F., Hau, G., Duhoux, P., Agnello, A., Arranda, I., Arsenault, R., Blanchard, I., Cerda, S., Egner, S., Johnston, E., Parraguez, D., Reyes, C., & Vernet, E. (2017). Re-commissioning of the VLT/UT4 telescope after the Deformable Secondary Mirror installation. Paper presented at 5th Adaptive Optics for Extremely Large Telescopes, AO4ELT 2017, Tenerife, Canary Islands, Spain. https://doi.org/10.26698/ao4elt5.0120

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abstract = "During the 2nd semester of 2016, a new Deformable Secondary Mirror (DSM), part of the Adaptive Optics Facility Project at Paranal Observatory, was installed on the Unit Telescope 4. Starting end of November 2016, we then re-commissioned the telescope and the following three instruments : HAWK-I, MUSE and SINFONI. It is important to understand how a DSM, even if used in non-adaptive optics mode (i.e., in its rest/at position), can impact the operations and the quality of the observations. We discuss here the results of this telescope and instrument re-commissioning, the challenges and problems we met, and compare the new performance to the ones obtained previously with the traditional Dornier Secondary Mirror.",

keywords = "Adaptive optics, Commissioning, Deformable mirror, VLT",

author = "P. Hibon and P. Hammersley and F. Selman and G. Hau and P. Duhoux and A. Agnello and I. Arranda and R. Arsenault and I. Blanchard and S. Cerda and S. Egner and E. Johnston and D. Parraguez and C. Reyes and E. Vernet",

note = "Publisher Copyright: {\textcopyright} 2017 Associazione Italiana di Metallurgia. All rights reserved.; 5th Adaptive Optics for Extremely Large Telescopes, AO4ELT 2017, AO4ELT5 ; Conference date: 25-06-2017 Through 30-06-2017",

year = "2017",

doi = "10.26698/ao4elt5.0120",

language = "English",

url = "https://web.archive.org/web/20200117115411/https://research.iac.es/congreso/AO4ELT5/pages/proceedings.html, https://web.archive.org/web/20240710213944/http://research.iac.es/congreso/AO4ELT5/index.html",

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Hibon, P, Hammersley, P, Selman, F, Hau, G, Duhoux, P, Agnello, A, Arranda, I, Arsenault, R, Blanchard, I, Cerda, S, Egner, S, Johnston, E, Parraguez, D, Reyes, C & Vernet, E 2017, 'Re-commissioning of the VLT/UT4 telescope after the Deformable Secondary Mirror installation', Paper presented at 5th Adaptive Optics for Extremely Large Telescopes, AO4ELT 2017, Tenerife, Canary Islands, Spain, 25/06/17 - 30/06/17. https://doi.org/10.26698/ao4elt5.0120

TY - CONF

T1 - Re-commissioning of the VLT/UT4 telescope after the Deformable Secondary Mirror installation

AU - Hibon, P.

AU - Hammersley, P.

AU - Selman, F.

AU - Hau, G.

AU - Duhoux, P.

AU - Agnello, A.

AU - Arranda, I.

AU - Arsenault, R.

AU - Blanchard, I.

AU - Cerda, S.

AU - Egner, S.

AU - Johnston, E.

AU - Parraguez, D.

AU - Reyes, C.

AU - Vernet, E.

PY - 2017

Y1 - 2017

N2 - During the 2nd semester of 2016, a new Deformable Secondary Mirror (DSM), part of the Adaptive Optics Facility Project at Paranal Observatory, was installed on the Unit Telescope 4. Starting end of November 2016, we then re-commissioned the telescope and the following three instruments : HAWK-I, MUSE and SINFONI. It is important to understand how a DSM, even if used in non-adaptive optics mode (i.e., in its rest/at position), can impact the operations and the quality of the observations. We discuss here the results of this telescope and instrument re-commissioning, the challenges and problems we met, and compare the new performance to the ones obtained previously with the traditional Dornier Secondary Mirror.

AB - During the 2nd semester of 2016, a new Deformable Secondary Mirror (DSM), part of the Adaptive Optics Facility Project at Paranal Observatory, was installed on the Unit Telescope 4. Starting end of November 2016, we then re-commissioned the telescope and the following three instruments : HAWK-I, MUSE and SINFONI. It is important to understand how a DSM, even if used in non-adaptive optics mode (i.e., in its rest/at position), can impact the operations and the quality of the observations. We discuss here the results of this telescope and instrument re-commissioning, the challenges and problems we met, and compare the new performance to the ones obtained previously with the traditional Dornier Secondary Mirror.

KW - Adaptive optics

KW - Commissioning

KW - Deformable mirror

KW - VLT

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DO - 10.26698/ao4elt5.0120

M3 - Paper

AN - SCOPUS:85049236166

T2 - 5th Adaptive Optics for Extremely Large Telescopes, AO4ELT 2017

Y2 - 25 June 2017 through 30 June 2017

ER -

Re-commissioning of the VLT/UT4 telescope after the Deformable Secondary Mirror installation

Abstract

Conference

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