Results 171 to 180 of about 10,591,762 (381)

VST telescope dynamic analisys and position control algorithms [PDF]

open access: yeseConf C011127 (2001) WEAP061, 2001
The VST (VLT Survey Telescope) is a 2.6 m class Alt-Az telescope to be installed on Cerro Paranal in the Atacama desert, Northern Chile, in the European Southern Observatory (ESO) site. The VST is a wide-field imaging facility planned to supply databases for the ESO Very Large Telescope (VLT) science and carry out stand-alone observations in the UV to ...
arxiv  

LITE: The Large Imaging Telescope [PDF]

open access: yesSymposium - International Astronomical Union, 1994
It was realised very early in the development of the ESO 16 metre equivalent Very Large Telescope (VLT) that wide-field imaging is too complicated and costly to implement on the VLT itself and should be done with a smaller telescope.
openaire   +3 more sources

γ-Ray and ultra-high energy neutrino background suppression due to solar radiation

open access: yesPhysics Letters B, 2023
The Sun emits copious amounts of photons and neutrinos in an approximately spatially isotropic distribution. Diffuse γ-rays and ultra-high energy (UHE) neutrinos from extragalactic sources may subsequently interact and annihilate with the emitted solar ...
Shyam Balaji
doaj  

Monte Carlo comparison of medium-size telescope designs for the Cherenkov Telescope Array [PDF]

open access: yesarXiv, 2013
The Cherenkov Telescope Array (CTA) is a future very high energy gamma-ray observatory. CTA will be comprised of small-,medium- and large-size telescopes covering an energy range from tens of GeV to hundreds of TeV and will surpass existing telescopes in sensitivity by an order of magnitude.
arxiv  

Time and phase alignment of distributed gateways: Theoretical analysis and experimental demonstration

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView., 2023
The performance limitation in multiple‐input multiple‐output (MIMO) feeder links due to time and phase misalignment of the ground stations is investigated. Time and phase distribution over optical fiber is considered as an approach to achieve the synchronization requirements.
Eriserdi Mollaymeri   +2 more
wiley   +1 more source

A summary of recent results from the GRAPES-3 experiment

open access: yesEPJ Web of Conferences, 2017
The GRAPES-3 experiment is a combination of a high density extensive air shower (EAS) array of nearly 400 plastic scintillator detectors, and a large 560 m2 area tracking muon telescope with an energy threshold Eμ >1 GeV.
Gupta S.K.
doaj   +1 more source

Who was the real sabertooth predator: Thylacosmilus or Thylacoleo?

open access: yesThe Anatomical Record, EarlyView.
Abstract Sabertoothed mammalian predators, all now extinct, were almost exclusively feloid carnivorans (Eutheria, Placentalia): here a couple of extinct metatherian predators are considered in comparison with the placental sabertooths. Thylacosmilus (the “marsupial sabertooth”) and Thylacoleo (the “marsupial lion”) were both relatively large (puma ...
Christine M. Janis
wiley   +1 more source

Results from the Telescope Array and review of HiRes

open access: yesEPJ Web of Conferences, 2013
A new measurement of the cosmic ray spectrum using the Telescope Array surface arrays is presented. Results on the composition of ultra-high energy cosmic rays from air-fluorescence measurements of shower maximum distributions are presented.
Sokolsky P.
doaj   +1 more source

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