Results 21 to 30 of about 5,111 (331)

Drift Performance and Chromatic Thermal Response of a Temperature Stabilized Solid-etalon Calibrator

The Astronomical Journal, 2023
Etalon-based calibrators have rapidly gained popularity over the past decade in the field of high-precision radial velocity and high-resolution spectroscopy studies.
Liang Tang, Zhibo Hao, Huiqi Ye, Yang Zhai, Kai Zhang, Dong Xiao   +5 more
doaj   +1 more source

3D-integrated optics component for astronomical spectro-interferometry [PDF]

, 2022
S.4556-4565We present the experimental characterization of a spectro-interferometry setup based on a laser-written three-dimensional integrated optics component.
Pertsch, Thomas, Saviauk, Allar, Minardi, Stefano, Nolte, Stefan, Dreisow, Felix   +4 more
core   +1 more source

Design and Thermal Stability Analysis of Swing Micro-Mirror Structure for Gravitational Wave Observatory in Space

Machines, 2021
A kind of swing micro-mirror structure with high stability for gravitational wave observatory in space is proposed in this paper. As the key interface instrument in the gravitational wave observatory, the swing micro-mirror structure plays a very ...
Kunyao Zheng, Mingming Xu
doaj   +1 more source

Optimum imaging observation wavelength selection for astronomical telescopes with partial correction adaptive optics [PDF]

, 2002
In order to maximize the compensation potential of adaptive optics system for atmospheric turbulence, an appropriate observing wavelength should be selected on the basis of system capability and the working conditions to improve the optical resolution ...
Changhui Rao, Wenhan Jiang
openalex   +3 more sources

Dispersion Characteristics of the Multi-mode Fiber-fed VIPA Spectrograph

The Astronomical Journal, 2023
A high-resolution ( ${ \mathcal R }\gt {10}^{5}$ ), multi-mode fiber-fed spectrograph on large telescopes with a reasonable size is desirable in astronomy.
Xiaoming Zhu, Dong Lin, Zhongnan Zhang, Xintong Xie, Jinping He   +4 more
doaj   +1 more source

Generalized large optics fabrication multiplexing

Journal of the European Optical Society-Rapid Publications, 2022
High precision astronomical optics are manufactured through deterministic computer controlled optical surfacing processes, such as subaperture small tool polishing, magnetorheological finishing, bonnet tool polishing, and ion beam figuring.
Kim Daewook, Ke Xiaolong, Pullen Weslin, Wang Tianyi, Choi Heejoo, Negi Vipender Singh, Huang Lei, Idir Mourad   +7 more
doaj   +1 more source

Disturbance Modelling for Minimum Variance Control in Adaptive Optics Systems Using Wavefront Sensor Sampled-Data

Sensors, 2021
Modern large telescopes are built based on the effectiveness of adaptive optics systems in mitigating the detrimental effects of wavefront distortions on astronomical images.
María Coronel, Rodrigo Carvajal, Pedro Escárate, Juan C. Agüero   +3 more
doaj   +1 more source

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

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

The Durham Adaptive Optics Simulation Platform (DASP): Current status

SoftwareX, 2018
The Durham Adaptive Optics Simulation Platform (DASP) is a Monte-Carlo modelling tool used for the simulation of astronomical and solar adaptive optics systems.
A.G. Basden, N.A. Bharmal, D. Jenkins, T.J. Morris, J. Osborn, J. Peng, L. Staykov   +6 more
doaj   +1 more source