Results 11 to 20 of about 174,204 (270)
Anais da Academia Brasileira de Ciências, 2021 SiTian is an ambitious ground-based all-sky optical monitoring project, developed by the Chinese Academy of Sciences. The concept is an integrated network of dozens of 1-m-class telescopes deployed partly in China and partly at various other sites around
JIFENG LIU +4 more
doaj +2 more sources
A study of optical observing techniques for extra-galactic supernova remnants: Case of NGC300 [PDF]
Serbian Astronomical Journal, 2012 We present the results of a study of observational and identification techniques used for surveys and spectroscopy of candidate supernova remnants (SNRs) in the Sculptor Group galaxy NGC300.
Millar W.C., White G.L., Filipović M.D.
doaj +1 more source
An updated approach to low-vision assessment
Journal of Clinical Ophthalmology and Research, 2022 The 2017 Global Burden of Disease study ranked vision impairment, including blindness, as the third cause among all impairments for years lived with disability visual impairment has enormous social and economic consequences in terms of productivity ...
Alka Tripathi, Richa Agarwal
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Cherenkov Telescopes as Optical Telescopes for Bright Sources: Today's Specialised Thirty Metre Telescopes? [PDF]
, 2011 Imaging Atmospheric Cherenkov Telescopes (IACTs) use large-aperture (~ 10 - 30 m) optical telescopes with arcminute angular resolution to detect TeV gamma-rays in the atmosphere.
Agol +105 more
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The Challenge to Large Optical Telescopes from X-ray Astronomy [PDF]
, 2002 In the ROSAT era of the mid-1990's, the problems facing deep X-ray surveys could be largely solved with 10 m class telescopes. In the first decade of this new millennium, with X-ray telescopes such as the Chandra X-ray Observatory and XMM-Newton in ...
Hornschemeier, Ann E.
core +3 more sources
The burst observer and optical transient exploring system in the multi-messenger astronomy era
Frontiers in Astronomy and Space Sciences, 2023 The Burst Observer and Optical Transient Exploring System (BOOTES) was first designed as an asset of autonomous telescopes that started to be deployed in 1998, taking 24 years to be fully developed around the earth.
Y.-D. Hu +9 more
doaj +1 more source
Characterization of a lobster-eye type X-ray telescope [PDF]
EPJ Web of Conferences, 2022 Lobster-eye type X-ray telescopes use reflecting plano mirrors under grazing incidence and can observe a large field of view. As part of a Bavarian-Czech cooperation, two telescopes were build, equipped with mirrors coated with gold and iridium.
Döhring Thorsten +5 more
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Optical Property and Alighment of KAO Wide Field Telescope (NEOPAT-3) [PDF]
Journal 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
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A profile of patients presenting at a low vision clinic in a resource-limited setting
African Vision and Eye Health, 2020 Background: The university-based low vision clinic is one of the few low vision clinics in South Africa. Aim: To describe demographic and clinical profiles of patients who attended this clinic from 2010 to 2017.
Zamadonda N.Q. Xulu-Kasaba +6 more
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A possible use for polarizers in imaging atmospheric Cherenkov telescopes [PDF]
, 2001 Cherenkov radiation produced in Extensive Air Showers shows a net polarization. This article discusses its properties and physical origin, and proposes an arrangement of polarizers potentially useful for Imaging Atmospheric Cherenkov Telescopes.Comment ...
Cherenkov Telescopes +4 more
core +3 more sources