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 proceeding contribution

13 Citations (Scopus)

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
Title of host publication	Adaptive Optics Systems II
Editors	Brent L. Ellerbroek, Michael Hart, Norbert Hubin, Peter L. Wizinowich
Place of Publication	Bellingham, WA
Publisher	SPIE
Pages	77361R-1-77361R-12
Number of pages	12
ISBN (Print)	9780819482266
DOIs	https://doi.org/10.1117/12.856776
Publication status	Published - 2010
Externally published	Yes
Event	Adaptive Optics Systems II - San Diego, CA, United States Duration: 27 Jun 2010 → 2 Jul 2010

Publication series

Name	Proceedings of SPIE
Volume	7736
ISSN (Print)	0277-786X

Other

Other	Adaptive Optics Systems II
Country	United States
City	San Diego, CA
Period	27/06/10 → 2/07/10

Access to Document

10.1117/12.856776

Link to publication in Scopus

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Christou, J. C., Neichel, B., Rigaut, F., Sheehan, M., McDermid, R. M., Trancho, G., ... Walls, B. (2010). ALTAIR performance and updates at Gemini North. In B. L. Ellerbroek, M. Hart, N. Hubin, & P. L. Wizinowich (Eds.), Adaptive Optics Systems II (pp. 77361R-1-77361R-12). [77361R] (Proceedings of SPIE; Vol. 7736). Bellingham, WA: SPIE. https://doi.org/10.1117/12.856776

Christou, Julian C. ; Neichel, Benoit ; Rigaut, François ; Sheehan, Michael ; McDermid, Richard M. ; Trancho, Gelys ; Trujillo, Chadwick ; Walls, Brian. / ALTAIR performance and updates at Gemini North. Adaptive Optics Systems II. editor / Brent L. Ellerbroek ; Michael Hart ; Norbert Hubin ; Peter L. Wizinowich. Bellingham, WA : SPIE, 2010. pp. 77361R-1-77361R-12 (Proceedings of SPIE).

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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{"}.",

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

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series = "Proceedings of SPIE",

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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 BL Ellerbroek, M Hart, N Hubin & PL Wizinowich (eds), Adaptive Optics Systems II., 77361R, Proceedings of SPIE, vol. 7736, SPIE, Bellingham, WA, pp. 77361R-1-77361R-12, Adaptive Optics Systems II, San Diego, CA, United States, 27/06/10. https://doi.org/10.1117/12.856776

ALTAIR performance and updates at Gemini North. / Christou, Julian C.; Neichel, Benoit; Rigaut, François; Sheehan, Michael; McDermid, Richard M.; Trancho, Gelys; Trujillo, Chadwick; Walls, Brian.

Adaptive Optics Systems II. ed. / Brent L. Ellerbroek; Michael Hart; Norbert Hubin; Peter L. Wizinowich. Bellingham, WA : SPIE, 2010. p. 77361R-1-77361R-12 77361R (Proceedings of SPIE; Vol. 7736).

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

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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

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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".

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