Evaluating the performance of the Keck Observatory adaptive optics systems on crowded field data using different adaptive optics configurations
Evaluating the performance of the Keck Observatory adaptive optics systems on crowded field data using different adaptive optics configurations
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使用不同的自适应光学配置评估凯克天文台自适应光学系统在拥挤的现场数据上的性能
DOI:
10.1117/12.2629035
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Lyke, Jim E.
中科院分区:
文献类型:
--
作者:
Chu, Devin;Ning, Wenmeng;Do, Tuan;Ghez, Andrea;Wizinowich, Peter;Lu, Jessica;Gautam, Abhimat K.;Ciurlo, Anna;Terry, Sean;Lyke, Jim E.
We present evaluations of the Keck Telescope’s adaptive optics (AO) performance on Milky Way Galactic center imaging and spectroscopic observations using three different AO setups: laser guide star with infrared (IR) tip-tilt correction, laser guide star with visible tip-tilt correction, and infrared natural guide star with a pyramid wavefront sensor. Observations of the Galactic Center can utilize a bright IR tip-tilt star (K′ = 7.4 mag) for corrections, which is over 10 arcseconds closer than the optical tip-tilt star. The proximity of this IR star enables the comparison of the aforementioned AO configurations. We present performance metrics such as full-width-at-half-maximum (FWHM), Strehl ratio, and spectral signal to noise ratio and their relations to atmospheric seeing conditions. The IR tip-tilt star decreases the median spatial FWHM by 31% in imaging data and 30% in spectroscopy. Median Strehl for imaging data improves by 24%. Additionally, the IR star removes the seeing dependence from differential tip-tilt error in both imaging and spectroscopic data. This evaluation provides important work for ongoing upgrades to AO systems, such as the Keck All sky Precision Adaptive Optics (KAPA) upgrade on the Keck I Telescope, and the development of new AO systems for extremely large telescopes.
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影响因子:
2.1
作者:
P. Wizinowich;M. Chun;D. Mawet;G. Agapito;R. Dekany;S. Esposito;T. Fusco;O. Guyon;D. Hall;C. Plantet;F. Rigaut
通讯作者:
F. Rigaut
DOI:
10.1117/12.2057449
发表时间:
2014
期刊:
arXiv: Astrophysics of Galaxies
影响因子:
--
作者:
J. Chin;P. Wizinowich;E. Wetherell;S. Cetre;S. Ragland;R. Campbell;S. Lilley;J. Lyke;D. Medeiros;R. Rampy;T. Stalcup;K. Tsubota;Pete Tucker;K. Wei
通讯作者:
K. Wei
DOI:
10.1117/12.390368
发表时间:
2000-07
期刊:
--
影响因子:
--
作者:
P. Wizinowich;D. S. Acton;O. Lai;J. Gathright;W. Lupton;P. Stomski
通讯作者:
P. Wizinowich;D. S. Acton;O. Lai;J. Gathright;W. Lupton;P. Stomski
影响因子:
2.1
作者:
A. Boehle;J. Larkin;S. Adkins;T. Aliado;M. Fitzgerald;C. Johnson;J. Lyke;K. Magnone;J. Sohn;E. Wang;J. Weiss
通讯作者:
J. Weiss
影响因子:
2.1
作者:
P. Wizinowich;Roger M. Smith;R. Biasi;S. Cetre;R. Dekany;Bruno Femenía;J. Fucik;D. Hale;C. Neyman;D. Pescoller;S. Ragland;P. Stomski;M. Andrighettoni;R. Bartos;K. Bui;A. Cooper;J. Cromer;M. V. van Dam;M. Hess;E. James;J. Lyke;H. Rodriguez;T. Stalcup
通讯作者:
T. Stalcup