Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Ronald A. Humphreys"'
Autor:
Charles A. Primmerman, Thomas R. Price, Herbert T. Barclay, Ronald A. Humphreys, Jan Herrmann, Byron G. Zollars
Publikováno v:
Applied optics. 34(12)
Most atmospheric-turbulence-compensation experiments have been performed under weak-scintillation conditions; conventional phase-conjugate adaptive-optics systems usually provide good correction for these conditions. We have performed an experiment o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1c3172c81c03e5c3900f46db9826ed6
https://pubmed.ncbi.nlm.nih.gov/21037754
https://pubmed.ncbi.nlm.nih.gov/21037754
Autor:
C. N. Dunlop, Nathan Doble, Derek Ives, R. G. M. Rutten, Ronald A. Humphreys, Thomas Gregory, Nigel Dipper, Chris Benn, David F. Buscher, Susan P. Worswick, A. Zadrozny, Xiaofeng Gao, Andrew Peter Doel, Martyn Wells, Richard M. Myers, Richard Wilson, Andrew J. A. Vick, Andrew J. Longmore, Paul Clark, Roy Oestensen, P. T. Peacocke, Chris Tierney
Publikováno v:
SPIE Proceedings.
NAOMI (Nasmyth Adaptive Optics for Multi-purpose Instrumentation) is a recently completed and commissioned astronomical facility on the 4.2m William Herschel Telescope. The system is designed to work initially with Natural Guide Stars and also to be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05d834a80b4b922155086c0de071254e
https://doi.org/10.1117/12.459236
https://doi.org/10.1117/12.459236
Autor:
Richard M. Myers, Paul Clark, Eric Emsellem, Johan H. Knapen, Gordon Talbot, Ronald A. Humphreys, Gil Moretto, R. G. M. Rutten, Thomas Gregory, Robert W. Wilson, Simon L. Morris, Richard G. Bingham
A rationale is presented for the use of a relatively low-altitude Rayleigh Laser Guide Star to provide partial adaptive optics correction across a large fraction of the sky on the 4.2m William Herschel Telescope. The scientific motivation is highligh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96cdd4956f30084795f850054b509bf2
Autor:
A. B. Gentles, Andrew J. Longmore, T. Peacocke, Mel Strachan, Susan P. Worswick, Andrew J. Weise, Martyn Wells, Colin Dixon, Ronald A. Humphreys, Richard M. Myers
Publikováno v:
SPIE Proceedings.
A conceptual design for the WHT Natural Guide Star Adaptive Optics system, now called NAOMI (Nasmyth Adaptive Optics for Multi-purpose Instrumentation) was presented at the 1995 SPIE meeting1. Although the general principle of using off-axis parabolo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a579e3740de0432a3c2e0686db0cff2e
https://doi.org/10.1117/12.279042
https://doi.org/10.1117/12.279042
Publikováno v:
SPIE Proceedings.
The UK Adaptive Optics program is funded to provide common user adaptive optics facilities for UK telescopes. One phase of this program aims to provide an adaptive optical system for the 4.2 m William Herschel Telescope (WHT), sited on La Palma in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ff957d25be7d1e548c87bdfaeec4c41
https://doi.org/10.1117/12.217766
https://doi.org/10.1117/12.217766
Autor:
Martyn Wells, Gerard Gilmore, Ronald A. Humphreys, Andrew J. Longmore, Richard Wilson, Richard M. Myers, A. Bruce Gentles
Publikováno v:
SPIE Proceedings.
The United Kingdom is funding a program of astronomical adaptive optics (AO), the primary purpose of which is to equip two 4-meter telescopes with common-user (facility) natural guide star AO systems: the 4.2 m William Herschel Telescope on La Palma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ab60d9ddde27992e3f957842d02146d
https://doi.org/10.1117/12.217764
https://doi.org/10.1117/12.217764
Autor:
Edward G. Corbett, E. E. Huber, Richard F. Horton, A. V. Roberts, Ronald A. Humphreys, Leonas A. Bernotas, L. G. B. Yee, J. M. Norton
Publikováno v:
Advanced Technology Optical Telescopes IV.
A method of phasing segmented-mirror systems using a new form of white-light radial-shear interferometer is presented. The device was used in a laboratory proof-of-concept demonstration to phase two elements of an annularly segmented mirror. This co-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6d83dd53c087c442c64ee488a3eaea8
https://doi.org/10.1117/12.19263
https://doi.org/10.1117/12.19263
Publikováno v:
Optics Letters. 16:1367
We have performed what are, to our knowledge, the first measurements of wave fronts propagated through atmospheric turbulence with the use of a synthetic beacon in the mesospheric sodium layer. The synthetic-beacon wave fronts showed reasonable agree
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bdcb2020ca156b1e46d50d45f0ba8153
https://doi.org/10.1364/ol.16.001367
https://doi.org/10.1364/ol.16.001367
Publikováno v:
Applied Optics. 5:670
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5e9c257c035aaf2711366e6bd95c1bf
https://doi.org/10.1364/ao.5.000670
https://doi.org/10.1364/ao.5.000670
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