ALTAIR performance and updates at Gemini North

Julian C. Christou; Benoit Neichel; François Rigaut; Michael Sheehan; Richard M. McDermid; Gelys Trancho; Chadwick Trujillo; Brian Walls

doi:10.1117/12.856776

ALTAIR performance and updates at Gemini North

Julian C. Christou, Benoit Neichel, François Rigaut, Michael Sheehan, Richard M. McDermid, Gelys Trancho, Chadwick Trujillo, Brian Walls

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

21 Scopus citations

Abstract

We present up-to-date performance characteristics for natural guide star (NGS) operation of the ALTAIR adaptive optics system at the Gemini N. 8m telescope. These results are obtained from a nightly performance monitoring campaign where we obtain a consistent set of point spread functions (PSFs) over a broad range of observing conditions. These results are compared with system modelling and circular buffer information from the Altair adaptive optics (AO) system. The latter show residual tip-tilt errors with a median rms ∼ 18.5 mas. We also present preliminary results from a new operational mode of the laser guide star (LGS) AO which will eventually yield all-sky access with image FWHM ∼ 0.1" -0.2".

Original language	English (US)
Title of host publication	Adaptive Optics Systems II
Edition	PART 1
DOIs	https://doi.org/10.1117/12.856776
State	Published - 2010
Externally published	Yes
Event	Adaptive Optics Systems II - San Diego, CA, United States Duration: Jun 27 2010 → Jul 2 2010

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Number	PART 1
Volume	7736
ISSN (Print)	0277-786X

Conference

Conference	Adaptive Optics Systems II
Country/Territory	United States
City	San Diego, CA
Period	6/27/10 → 7/2/10

Keywords

Adaptive optics
Laser guide star
Natural guide star
Performance
Strehl ratio

ASJC Scopus subject areas

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

Access to Document

10.1117/12.856776

Cite this

Christou, JC, Neichel, B, Rigaut, F, Sheehan, M, McDermid, RM, Trancho, G, Trujillo, C & Walls, B 2010, ALTAIR performance and updates at Gemini North. in Adaptive Optics Systems II. PART 1 edn, 77361R, Proceedings of SPIE - The International Society for Optical Engineering, no. PART 1, vol. 7736, Adaptive Optics Systems II, San Diego, CA, United States, 6/27/10. https://doi.org/10.1117/12.856776

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title = "ALTAIR performance and updates at Gemini North",

abstract = "We present up-to-date performance characteristics for natural guide star (NGS) operation of the ALTAIR adaptive optics system at the Gemini N. 8m telescope. These results are obtained from a nightly performance monitoring campaign where we obtain a consistent set of point spread functions (PSFs) over a broad range of observing conditions. These results are compared with system modelling and circular buffer information from the Altair adaptive optics (AO) system. The latter show residual tip-tilt errors with a median rms ∼ 18.5 mas. We also present preliminary results from a new operational mode of the laser guide star (LGS) AO which will eventually yield all-sky access with image FWHM ∼ 0.1{"} -0.2{"}.",

keywords = "Adaptive optics, Laser guide star, Natural guide star, Performance, Strehl ratio",

author = "Christou, {Julian C.} and Benoit Neichel and Fran{\c c}ois Rigaut and Michael Sheehan and McDermid, {Richard M.} and Gelys Trancho and Chadwick Trujillo and Brian Walls",

year = "2010",

doi = "10.1117/12.856776",

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T1 - ALTAIR performance and updates at Gemini North

AU - Christou, Julian C.

AU - Neichel, Benoit

AU - Rigaut, François

AU - Sheehan, Michael

AU - McDermid, Richard M.

AU - Trancho, Gelys

AU - Trujillo, Chadwick

AU - Walls, Brian

PY - 2010

Y1 - 2010

N2 - We present up-to-date performance characteristics for natural guide star (NGS) operation of the ALTAIR adaptive optics system at the Gemini N. 8m telescope. These results are obtained from a nightly performance monitoring campaign where we obtain a consistent set of point spread functions (PSFs) over a broad range of observing conditions. These results are compared with system modelling and circular buffer information from the Altair adaptive optics (AO) system. The latter show residual tip-tilt errors with a median rms ∼ 18.5 mas. We also present preliminary results from a new operational mode of the laser guide star (LGS) AO which will eventually yield all-sky access with image FWHM ∼ 0.1" -0.2".

AB - We present up-to-date performance characteristics for natural guide star (NGS) operation of the ALTAIR adaptive optics system at the Gemini N. 8m telescope. These results are obtained from a nightly performance monitoring campaign where we obtain a consistent set of point spread functions (PSFs) over a broad range of observing conditions. These results are compared with system modelling and circular buffer information from the Altair adaptive optics (AO) system. The latter show residual tip-tilt errors with a median rms ∼ 18.5 mas. We also present preliminary results from a new operational mode of the laser guide star (LGS) AO which will eventually yield all-sky access with image FWHM ∼ 0.1" -0.2".

KW - Adaptive optics

KW - Laser guide star

KW - Natural guide star

KW - Performance

KW - Strehl ratio

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T3 - Proceedings of SPIE - The International Society for Optical Engineering

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T2 - Adaptive Optics Systems II

Y2 - 27 June 2010 through 2 July 2010

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ALTAIR performance and updates at Gemini North

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Access to Document

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