Ground layer adaptive optics for the W. M. Keck Observatory: feasibility study
| Autor: | Peter Wizinowich, Claire E. Max, Crystal L. Martin, Kyle B. Westfall, Olivier Lai, Kevin Bundy, D. Gavel, Charles C. Steidel, Jessica R. Lu, Lianqi Wang, Mark Chun, Richard Dekany, Tuan Do, M. Kassis, S. M. Ammons |
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| Přispěvatelé: | Joseph Louis LAGRANGE (LAGRANGE), Université Côte d'Azur (UCA)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Schmidt, Dirk, Schreiber, Laura, Close, Laird M, W.M. Keck Observatory, Department of Physics and Astronomy [UCLA, Los Angeles], University of California [Los Angeles] (UCLA), University of California-University of California, California Institute of Technology (CALTECH), Close, Laird M. |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
W. M. Keck Observatory
[PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM] Image quality Ground layer FOS: Physical sciences 01 natural sciences law.invention adaptive optics 010309 optics Telescope Optics law Observatory 0103 physical sciences 14. Life underwater Adaptive optics Instrumentation and Methods for Astrophysics (astro-ph.IM) 010303 astronomy & astrophysics ComputingMilieux_MISCELLANEOUS Physics business.industry ground layer Exoplanet Optical axis Astrophysics - Instrumentation and Methods for Astrophysics business [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] astro-ph.IM |
| Zdroj: | Adaptive Optics Systems VI Adaptive Optics Systems VI, Jun 2018, Austin, United States. pp.23, ⟨10.1117/12.2314417⟩ Lu, JR; Chun, M; Ammons, SM; Bundy, K; Dekany, R; Do, T; et al.(2018). Ground Layer Adaptive Optics for the W. M. Keck Observatory: Feasibility Study. 2018 Proceedings of the SPIE, Adaptive Optics System VI. UC Santa Barbara: Retrieved from: http://www.escholarship.org/uc/item/52g29993 |
| Popis: | Ground-layer adaptive optics (GLAO) systems offer the possibility of improving the "seeing" of large ground-based telescopes and increasing the efficiency and sensitivity of observations over a wide field-of-view. We explore the utility and feasibility of deploying a GLAO system at the W. M. Keck Observatory in order to feed existing and future multi-object spectrographs and wide-field imagers. We also briefly summarize science cases spanning exoplanets to high-redshift galaxy evolution that would benefit from a Keck GLAO system. Initial simulations indicate that a Keck GLAO system would deliver a 1.5x and 2x improvement in FWHM at optical (500 nm) and infrared (1.5 micron), respectively. The infrared instrument, MOSFIRE, is ideally suited for a Keck GLAO feed in that it has excellent image quality and is on the telescope's optical axis. However, it lacks an atmospheric dispersion compensator, which would limit the minimum usable slit size for long-exposure science cases. Similarly, while LRIS and DEIMOS may be able to accept a GLAO feed based on their internal image quality, they lack either an atmospheric dispersion compensator (DEIMOS) or flexure compensation (LRIS) to utilize narrower slits matched to the GLAO image quality. However, some science cases needing shorter exposures may still benefit from Keck GLAO and we will investigate the possibility of installing an ADC. Comment: 2018 Proceedings of the SPIE; published |
| Databáze: | OpenAIRE |
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