Results 21 to 30 of about 368,356 (303)

Antarctic Survey Telescope 3-3: Overview, System Performance and Preliminary Observations at Yaoan, Yunnan

Universe, 2022
The third Antarctic Survey Telescope array instrument at Dome A in Antarctica, the AST3-3 telescope, has been in commissioning from March 2021. We deployed AST3-3 at the Yaoan astronomical station in Yunnan Province for an automatic time-domain survey ...
Tianrui Sun, Xiaoyan Li, Lei Hu, Kelai Meng, Zijian Han, Maokai Hu, Zhengyang Li, Haikun Wen, Fujia Du, Shihai Yang, Bozhong Gu, Xiangyan Yuan, Yun Li, Huihui Wang, Lei Liu, Zhenxi Zhu, Xuehai Huang, Chengming Lei, Lifan Wang, Xuefeng Wu   +19 more
doaj   +1 more source

Status of MagAO and review of astronomical science with visible light adaptive optics [PDF]

Astronomical Telescopes + Instrumentation, 2018
We review astronomical results in the visible ...
L. Close, J. Males, K. Morzinski, S. Esposito, A. Riccardi, R. Briguglio, K. Follette, Ya-Lin Wu, E. Pinna, A. Puglisi, M. Xompero, F. Quirós, P. Hinz   +12 more
semanticscholar   +1 more source

Modeling astronomical adaptive optics performance with temporally filtered Wiener reconstruction of slope data. [PDF]

Journal of The Optical Society of America A-optics Image Science and Vision, 2017
We build on a long-standing tradition in astronomical adaptive optics (AO) of specifying performance metrics and error budgets using linear systems modeling in the spatial-frequency domain.
C. Correia, C. Bond, J. Sauvage, T. Fusco, R. Conan, P. Wizinowich   +5 more
semanticscholar   +1 more source

A Fuzzy Logic Based Algorithm for Finding Astronomical Objects in Wide-Angle Frames [PDF]

, 2005
Accurate automatic identification of astronomical objects in an imperfect world of non-linear wide-angle optics, imperfect optics, inaccurately pointed telescopes, and defect-ridden cameras is not always a trivial first step.
Bertin, Lior Shamir, Robert J. Nemiroff, Takagi, Zadeh, Zadeh   +5 more
core   +2 more sources

Integrated optics for astronomical interferometry - VI. Coupling the light of the VLTI in K band [PDF]

, 2005
Our objective is to prove that integrated optics (IO) is not only a good concept for astronomical interferometry but also a working technique with high performance.
A. Delboulbé, A. Glindemann, Berger, Berger, Coudé du Foresto, Coudé du Foresto, Davis, Di Folco, Domiciano de Souza, F. Malbet, F. Zabihian, Glindemann, Haguenauer, J.-B. LeBouquin, J.-P. Berger, K. Rousselet-Perraut, Kern, Kervella, Kervella, Kervella, L. Jocou, Laurent, LeBouquin, M. Schöeller, Malbet, Malbet, P. Kern, P. Labeye, Pijpers, Richichi, Ségransan, Tatulli, Wittkowski   +32 more
core   +5 more sources

Concept and optical design of the cross-disperser module for CRIRES [PDF]

, 2014
This is the peer reviewed version of the following article: Oliva, Ernesto, A. Tozzi, D. Ferruzzi, L. Origlia, A. Hatzes, R. Follert, T. Loewinger et al.
Anglada-Escude, G, Baade, D, Bristow, P, Delabre, B, Dorn, RJ, Ferruzzi, D, Follert, R, Gojak, D, Grunhut, J, Hatzes, A, Heiter, U, Hilker, M, Ives, DJ, Jung, Y, Kaeufl, HU, Kerber, F, Klein, B, Lizon, JL, Lockhart, M, Loewinger, T, Marquart, T, Oliva, E, Origlia, L, Pasquini, L, Paufique, J, Piskunov, N, Pozna, E, Reiners, A, Seemann, U, Smette, A, Smoker, J, Stempels, E, Tozzi, A, Valenti, E   +33 more
core   +2 more sources

Integrated Laboratory Demonstrations of Multi-Object Adaptive Optics on a Simulated 10-Meter Telescope at Visible Wavelengths [PDF]

, 2009
One important frontier for astronomical adaptive optics (AO) involves methods such as Multi-Object AO and Multi-Conjugate AO that have the potential to give a significantly larger field of view than conventional AO techniques.
Ammons, S. Mark, Bauman, Brian J., Gavel, Donald T., Johnson, Luke, Kupke, Renate, Laag, Edward A., Max, Claire E.   +6 more
core   +1 more source

Real-time Experimental Demonstrations of a Photonic Lantern Wave-front Sensor

The Astrophysical Journal Letters, 2023
The direct imaging of an Earth-like exoplanet will require sub-nanometric wave-front control across large light-collecting apertures to reject host starlight and detect the faint planetary signal.
Jonathan W. Lin, Michael P. Fitzgerald, Yinzi Xin, Yoo Jung Kim, Olivier Guyon, Barnaby Norris, Christopher Betters, Sergio Leon-Saval, Kyohoon Ahn, Vincent Deo, Julien Lozi, Sébastien Vievard, Daniel Levinstein, Steph Sallum, Nemanja Jovanovic   +14 more
doaj   +1 more source

Pupil stabilization for SPHERE's extreme AO and high performance coronagraph system [PDF]

, 2007
We propose a new concept of pupil motion sensor for astronomical adaptive optics systems and present experimental results obtained during the first laboratory validation of this concept.
Beuzit, J. -L., Charton, J., Fusco, T., Jocou, L., Montagnier, G., Mouillet, D.   +5 more
core   +2 more sources

Point-spread Function Estimation for Adaptive Optics Imaging of Astronomical Extended Objects

Astrophysical Journal, 2019
This paper focuses on point-spread function (PSF) estimation for astronomical images containing only single extended objects captured by adaptive optics systems.
M. Long, Yang Soubo, Ni Weiping, Xinxin Feng, Yu Jun   +4 more
semanticscholar   +1 more source