Results 11 to 20 of about 2,342,784 (304)

Innovative technology for optical and infrared astronomy [PDF]

open access: yesSPIE Proceedings, 2012
Advances in astronomy are often enabled by adoption of new technology. In some instances this is where the technology has been invented specifically for astronomy, but more usually it is adopted from another scientific or industrial area of application. The adoption of new technology typically occurs via one of two processes.
Cunningham, C   +5 more
openaire   +3 more sources

Towards a BRICS Optical Transient Network (BRICS-OTN) [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2021
This paper is based on a proposal submitted for a BRICS astronomy flagship program, which was presented at the 2019 meeting of the BRICS Astronomy Working Group, held in Rio de Janeiro from 29 September to 2 October 2019.
DAVID A.H. BUCKLEY   +10 more
doaj   +1 more source

Twin High-Resolution, High-Speed Imagers for the Gemini Telescopes: Instrument Description and Science Verification Results

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Two new imaging instruments, ‘Alopeke and Zorro, were designed, built, and commissioned at the Gemini-North and Gemini-South telescopes in 2018 and 2019, respectively. Here we describe them and present the results from over a year of operation.
Nicholas J. Scott   +11 more
doaj   +1 more source

Precipitable Water Vapor Conditions for Infrared Observations at Korean Astronomical Observatories [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2007
KASINICS (Korea Astronomy and Space Science Institute Near Infrared Camera System) is equipped with a InSb array which can observe 1--5~μm bands in near-infrared.
Sungho Lee   +10 more
doaj   +1 more source

Adaptive Optics for Astronomy [PDF]

open access: yesAnnual Review of Astronomy and Astrophysics, 2012
Adaptive optics is a prime example of how progress in observational astronomy can be driven by technological developments. At many observatories it is now considered to be part of a standard instrumentation suite, enabling ground-based telescopes to reach the diffraction limit and, thus, providing spatial resolution superior to that achievable from ...
Davies, R., Kasper, M.
openaire   +3 more sources

Near-Infrared Observing Conditions at the BOAO and the SOAO [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2004
Korea Astronomy Observatory(KAO) has been developing the KAONICS, KAO Near-Infrared Camera System, which will be used for near-infrared observations in the ground-based telescopes of Korea.
Bongkon Moon   +6 more
doaj   +1 more source

Spectroscopic evidence for a large spot on the dimming Betelgeuse

open access: yesNature Communications, 2021
The reason of the dimming of Betelgeuse is debated. Here, the authors show effective temperature decrease that can be explained by a large spot.
Sofya Alexeeva   +6 more
doaj   +1 more source

Optical Polarimetry in Undergraduate Education [PDF]

open access: yesEPJ Web of Conferences, 2019
Polarimetry plays an important part in observational astronomy, but it is all too often given limited attention in astronomy textbooks. Coupled with a sometimes confusing mathematical introduction, students may feel that polarization is a difficult ...
Topasna Gregory
doaj   +1 more source

Frequency-insensitive spatiotemporal shaping of single photon in multiuser quantum network

open access: yesnpj Quantum Information, 2023
Exploiting the fundamental features of quantum mechanics, an entanglement-based quantum network offers a promising platform for many dramatic applications such as multi-user cryptography.
Yiwen Huang   +9 more
doaj   +1 more source

Optical Property and Alighment of KAO Wide Field Telescope (NEOPAT-3) [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2004
We have investigated the optical property of the KAO(Korea Astronomy Observatory) wide field telescope (named NEOPAT-3; Near Earth Object and Satellite Patrol-3) and aligned optical system.
In-Soo Yuk   +9 more
doaj   +1 more source

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