Results 1 to 10 of about 2,474,049 (303)
Towards a BRICS Optical Transient Network (BRICS-OTN) [PDF]
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
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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
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Precipitable Water Vapor Conditions for Infrared Observations at Korean Astronomical Observatories [PDF]
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
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Near-Infrared Observing Conditions at the BOAO and the SOAO [PDF]
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
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Spectroscopic evidence for a large spot on the dimming Betelgeuse
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
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Optical Polarimetry in Undergraduate Education [PDF]
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
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
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Optical Property and Alighment of KAO Wide Field Telescope (NEOPAT-3) [PDF]
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
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Optical Orbit Determination of a Geosynchronous Earth Orbit Satellite Effected by Baseline Distances between Various Ground-based Tracking Stations Ⅱ: COMS Case with Analysis of Actual Observation Data [PDF]
We estimated the orbit of the Communication, Ocean and Meteorological Satellite (COMS), a Geostationary Earth Orbit (GEO) satellite, through data from actual optical observations using telescopes at the Sobaeksan Optical Astronomy Observatory (SOAO) of
Ju Young Son +11 more
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A critical observation for testing the KRM jet model, in development at FIU, is to observe high time resolution, high accuracy photometry and polarimetry over a wide range of frequencies in the optically thin portion of the synchrotron spectrum.
James R. Webb +4 more
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