The CHARA array adaptive optics program

Theo A. Ten Brummelaar; Judit Sturmann; Laszlo Sturmann; Matthew D. Anderson; Nils H. Turner; Michael J. Ireland; John D. Monnier; Denis Mourard; Stephen T. Ridgway; Douglas R. Gies; Jean Baptiste Le Bouquin

doi:10.1117/12.2312311

The CHARA array adaptive optics program

Theo A. Ten Brummelaar, Judit Sturmann, Laszlo Sturmann, Matthew D. Anderson, Nils H. Turner, Michael J. Ireland, John D. Monnier, Denis Mourard, Stephen T. Ridgway, Douglas R. Gies, Jean Baptiste Le Bouquin

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

8 Scopus citations

Abstract

The CHARA array is an optical/near infrared interferometer consisting of six 1-meter diameter telescopes, the longest baseline of which is 331 meters. With sub-millisecond angular resolution, the CHARA array is able to spatially resolve nearby stellar systems and reveal their detailed structures. To improve the sensitivity and scientific throughput, the CHARA array was funded by NSF-ATI in 2011 for an upgrade of adaptive optics (AO) systems to all six telescopes. This first grant covered Phase I of the adaptive optics system, which includes an on-telescope Wavefront Sensor (WFS) and non-common-path (NCP) error correction. Phase II of the program was funded by the NSF/MRI in 2016, and includes purchasing and installing the deformable mirrors at each telescope to complete the system. In this paper we will discuss both phases of the program, how the challenge of AO differs for interferometry, and the first results of the full system.

Original language	English (US)
Title of host publication	Adaptive Optics Systems VI
Editors	Dirk Schmidt, Laura Schreiber, Laird M. Close
Publisher	SPIE
ISBN (Print)	9781510619593
DOIs	https://doi.org/10.1117/12.2312311
State	Published - 2018
Externally published	Yes
Event	Adaptive Optics Systems VI 2018 - Austin, United States Duration: Jun 10 2018 → Jun 15 2018

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	10703
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Adaptive Optics Systems VI 2018
Country/Territory	United States
City	Austin
Period	6/10/18 → 6/15/18

Bibliographical note

Publisher Copyright:
© 2018 SPIE.

Keywords

Ground based Interferometry Adaptive Optics Non-Common Path Small telescope AO

Publisher link

10.1117/12.2312311

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Ten Brummelaar, T. A., Sturmann, J., Sturmann, L., Anderson, M. D., Turner, N. H., Ireland, M. J., Monnier, J. D., Mourard, D., Ridgway, S. T., Gies, D. R., & Le Bouquin, J. B. (2018). The CHARA array adaptive optics program. In D. Schmidt, L. Schreiber, & L. M. Close (Eds.), Adaptive Optics Systems VI Article 1070304 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10703). SPIE. https://doi.org/10.1117/12.2312311

The CHARA array adaptive optics program. / Ten Brummelaar, Theo A.; Sturmann, Judit; Sturmann, Laszlo et al.
Adaptive Optics Systems VI. ed. / Dirk Schmidt; Laura Schreiber; Laird M. Close. SPIE, 2018. 1070304 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10703).

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

Ten Brummelaar, TA, Sturmann, J, Sturmann, L, Anderson, MD, Turner, NH, Ireland, MJ, Monnier, JD, Mourard, D, Ridgway, ST, Gies, DR & Le Bouquin, JB 2018, The CHARA array adaptive optics program. in D Schmidt, L Schreiber & LM Close (eds), Adaptive Optics Systems VI., 1070304, Proceedings of SPIE - The International Society for Optical Engineering, vol. 10703, SPIE, Adaptive Optics Systems VI 2018, Austin, United States, 6/10/18. https://doi.org/10.1117/12.2312311

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AB - The CHARA array is an optical/near infrared interferometer consisting of six 1-meter diameter telescopes, the longest baseline of which is 331 meters. With sub-millisecond angular resolution, the CHARA array is able to spatially resolve nearby stellar systems and reveal their detailed structures. To improve the sensitivity and scientific throughput, the CHARA array was funded by NSF-ATI in 2011 for an upgrade of adaptive optics (AO) systems to all six telescopes. This first grant covered Phase I of the adaptive optics system, which includes an on-telescope Wavefront Sensor (WFS) and non-common-path (NCP) error correction. Phase II of the program was funded by the NSF/MRI in 2016, and includes purchasing and installing the deformable mirrors at each telescope to complete the system. In this paper we will discuss both phases of the program, how the challenge of AO differs for interferometry, and the first results of the full system.

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The CHARA array adaptive optics program

Abstract

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Bibliographical note

Keywords

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