KalAO the swift adaptive optics imager on the 1.2m Euler Swiss telescope in la Silla, Chile

Janis Hagelberg; Nathanaël Restori; François Wildi; Bruno Chazelas; Christoph Baranec; Olivier Guyon; Ludovic Genolet; Michaël Sordet; Reed Riddle

doi:10.1117/12.2576315

KalAO the swift adaptive optics imager on the 1.2m Euler Swiss telescope in la Silla, Chile

Janis Hagelberg, Nathanaël Restori, François Wildi, Bruno Chazelas, Christoph Baranec, Olivier Guyon, Ludovic Genolet, Michaël Sordet, Reed Riddle

Optical Sciences

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

4 Scopus citations

Abstract

KalAO is a natural guide star adaptive optics (AO) imager to be installed on the second Nasmyth focus of the 1.2m Euler Swiss telescope in La Silla, Chile. The initial design of the system is inspired on RoboAO with modifications in order to operate in natural guide star (NGS) mode. KalAO was built to search for binarity in planet hosting stars by following-up candidates primarily from the TESS satellite survey. The optical design is optimised for the 450-900 nm wavelength range and is fitted with SDSS g,r,i,z filters. The system is designed for wavefront control down to I-magnitude 11 stars in order to probe the same parameter space as radial velocity instruments such as HARPS and NIRPS. The principal components of the system are an 11x11 10.9 cm sub-apertures Electron Multiplying CCD (EMCCD) Shack-Hartmann wavefront sensor, a 140 actuators Microelectromechanical systems (MEMS) deformable mirror, a fast tip/tilt mirror, and a graphics processing unit (GPU) powered glycol cooled real-time computer. It is designed to run at up to 1.8kHz in order to detect companions as close as the 150mas visible-light diffraction limit. The real-time adaptive optics control is using the CACAO software running on GPUs. The instrument is planned for commissioning early 2021 in Chile if the covid restrictions are lifted.

Original language	English (US)
Title of host publication	Adaptive Optics Systems VII
Editors	Laura Schreiber, Dirk Schmidt, Elise Vernet
Publisher	SPIE
ISBN (Electronic)	9781510636835
DOIs	https://doi.org/10.1117/12.2576315
State	Published - 2020
Event	Adaptive Optics Systems VII 2020 - Virtual, Online, United States Duration: Dec 14 2020 → Dec 22 2020

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	11448
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Adaptive Optics Systems VII 2020
Country/Territory	United States
City	Virtual, Online
Period	12/14/20 → 12/22/20

Keywords

Adaptive optics
Astronomy
Exoplanets
Optics
Wave-front sensing

ASJC Scopus subject areas

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

Access to Document

10.1117/12.2576315

Cite this

Hagelberg, J., Restori, N., Wildi, F., Chazelas, B., Baranec, C., Guyon, O., Genolet, L., Sordet, M., & Riddle, R. (2020). KalAO the swift adaptive optics imager on the 1.2m Euler Swiss telescope in la Silla, Chile. In L. Schreiber, D. Schmidt, & E. Vernet (Eds.), Adaptive Optics Systems VII Article 114487G (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11448). SPIE. https://doi.org/10.1117/12.2576315

KalAO the swift adaptive optics imager on the 1.2m Euler Swiss telescope in la Silla, Chile. / Hagelberg, Janis; Restori, Nathanaël; Wildi, François et al.
Adaptive Optics Systems VII. ed. / Laura Schreiber; Dirk Schmidt; Elise Vernet. SPIE, 2020. 114487G (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11448).

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

Hagelberg, J, Restori, N, Wildi, F, Chazelas, B, Baranec, C, Guyon, O, Genolet, L, Sordet, M & Riddle, R 2020, KalAO the swift adaptive optics imager on the 1.2m Euler Swiss telescope in la Silla, Chile. in L Schreiber, D Schmidt & E Vernet (eds), Adaptive Optics Systems VII., 114487G, Proceedings of SPIE - The International Society for Optical Engineering, vol. 11448, SPIE, Adaptive Optics Systems VII 2020, Virtual, Online, United States, 12/14/20. https://doi.org/10.1117/12.2576315

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title = "KalAO the swift adaptive optics imager on the 1.2m Euler Swiss telescope in la Silla, Chile",

abstract = "KalAO is a natural guide star adaptive optics (AO) imager to be installed on the second Nasmyth focus of the 1.2m Euler Swiss telescope in La Silla, Chile. The initial design of the system is inspired on RoboAO with modifications in order to operate in natural guide star (NGS) mode. KalAO was built to search for binarity in planet hosting stars by following-up candidates primarily from the TESS satellite survey. The optical design is optimised for the 450-900 nm wavelength range and is fitted with SDSS g,r,i,z filters. The system is designed for wavefront control down to I-magnitude 11 stars in order to probe the same parameter space as radial velocity instruments such as HARPS and NIRPS. The principal components of the system are an 11x11 10.9 cm sub-apertures Electron Multiplying CCD (EMCCD) Shack-Hartmann wavefront sensor, a 140 actuators Microelectromechanical systems (MEMS) deformable mirror, a fast tip/tilt mirror, and a graphics processing unit (GPU) powered glycol cooled real-time computer. It is designed to run at up to 1.8kHz in order to detect companions as close as the 150mas visible-light diffraction limit. The real-time adaptive optics control is using the CACAO software running on GPUs. The instrument is planned for commissioning early 2021 in Chile if the covid restrictions are lifted.",

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author = "Janis Hagelberg and Nathana{\"e}l Restori and Fran{\c c}ois Wildi and Bruno Chazelas and Christoph Baranec and Olivier Guyon and Ludovic Genolet and Micha{\"e}l Sordet and Reed Riddle",

note = "Funding Information: This project is supported by SNSF through the Ambizione grant #PZ00P2 180098 (PI. Janis Hagelberg). Publisher Copyright: {\textcopyright} 2020 SPIE.; Adaptive Optics Systems VII 2020 ; Conference date: 14-12-2020 Through 22-12-2020",

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AU - Chazelas, Bruno

AU - Baranec, Christoph

AU - Guyon, Olivier

AU - Genolet, Ludovic

AU - Sordet, Michaël

AU - Riddle, Reed

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N2 - KalAO is a natural guide star adaptive optics (AO) imager to be installed on the second Nasmyth focus of the 1.2m Euler Swiss telescope in La Silla, Chile. The initial design of the system is inspired on RoboAO with modifications in order to operate in natural guide star (NGS) mode. KalAO was built to search for binarity in planet hosting stars by following-up candidates primarily from the TESS satellite survey. The optical design is optimised for the 450-900 nm wavelength range and is fitted with SDSS g,r,i,z filters. The system is designed for wavefront control down to I-magnitude 11 stars in order to probe the same parameter space as radial velocity instruments such as HARPS and NIRPS. The principal components of the system are an 11x11 10.9 cm sub-apertures Electron Multiplying CCD (EMCCD) Shack-Hartmann wavefront sensor, a 140 actuators Microelectromechanical systems (MEMS) deformable mirror, a fast tip/tilt mirror, and a graphics processing unit (GPU) powered glycol cooled real-time computer. It is designed to run at up to 1.8kHz in order to detect companions as close as the 150mas visible-light diffraction limit. The real-time adaptive optics control is using the CACAO software running on GPUs. The instrument is planned for commissioning early 2021 in Chile if the covid restrictions are lifted.

AB - KalAO is a natural guide star adaptive optics (AO) imager to be installed on the second Nasmyth focus of the 1.2m Euler Swiss telescope in La Silla, Chile. The initial design of the system is inspired on RoboAO with modifications in order to operate in natural guide star (NGS) mode. KalAO was built to search for binarity in planet hosting stars by following-up candidates primarily from the TESS satellite survey. The optical design is optimised for the 450-900 nm wavelength range and is fitted with SDSS g,r,i,z filters. The system is designed for wavefront control down to I-magnitude 11 stars in order to probe the same parameter space as radial velocity instruments such as HARPS and NIRPS. The principal components of the system are an 11x11 10.9 cm sub-apertures Electron Multiplying CCD (EMCCD) Shack-Hartmann wavefront sensor, a 140 actuators Microelectromechanical systems (MEMS) deformable mirror, a fast tip/tilt mirror, and a graphics processing unit (GPU) powered glycol cooled real-time computer. It is designed to run at up to 1.8kHz in order to detect companions as close as the 150mas visible-light diffraction limit. The real-time adaptive optics control is using the CACAO software running on GPUs. The instrument is planned for commissioning early 2021 in Chile if the covid restrictions are lifted.

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KalAO the swift adaptive optics imager on the 1.2m Euler Swiss telescope in la Silla, Chile

Abstract

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Keywords

ASJC Scopus subject areas

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