Broadband multi-wavelength properties of M87 during the 2017 Event Horizon Telescope campaign
In 2017, the Event Horizon Telescope (EHT) Collaboration succeeded in capturing the first direct image of the center of the M87 galaxy. The asymmetric ring morphology and size are consistent with theoretical expectations for a weakly accreting ...
The Event Horizon Telescope Collaboration
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wakaka1o1/Active-Vibration-Control-of-a-Large-Space-Telescope: The First release of my paper code
<p>"Active Vibration Control of a Large Space Telescope Based On H∞ Control With Unilateral and Constrained Input" part1:Dynamic modeling</p ...
YU, Heng
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Grinding metre scale mirror segments for the E-ELT ground based telescope [PDF]
The next generation of ground based telescopes require many hundreds of metre scale off-axis mirrors. In this paper the grinding of a 1.45m scale Zerodur® mirror segment for the European Extremely Large Telescope (E-ELT) is introduced.
P. Shore +7 more
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Nautilus: The advent of large lens-based space telescopes [PDF]
One of the most profound and philosophically captivating foci of modern astronomy is studies of Earth-like exoplanets in search of life in the Universe.
Kim Daewook +2 more
doaj +1 more source
Turbulent parameters at different heights in the atmosphere. Shack–Hartmann wavefront sensor data
The paper presents the results of studies of wavefront distortions at different heights in the atmosphere. We have used measurement wavefront data to determine optical turbulence parameters along the line of sight of the Large Solar Vacuum Telescope ...
Shikhovtsev A. Y. +5 more
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Fast figuring of large optics by reactive atom plasma [PDF]
The next generation of ground-based astronomical observatories will require fabrication and maintenance of extremely large segmented mirrors tens of meters in diameter.
Renaud Jourdain +7 more
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The purpose of this paper is to investigate a large radio telescope support point number effect on its pointing accuracy and provide a useful guideline for the large radio telescope design engineer. In a large radio telescope system, the azimuth track is
Song Xue +8 more
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One Novel Distributed Space Telescope With Payload Formation
Large aperture space technology is critical for next-step astrophysics missions with high resolution requirement. The distributed telescope has been proven as an appealing solution to break the technical limitation in obtaining large apertures.
Qing Li, Lei Liu, Jun Shen
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Implementation of a laser-truss based telescope metrology system at the Large Binocular Telescope
Large ground-based telescopes are prone to perturbations caused by environmental factors that affect the mechanical structure of the telescope that can cause collimation loss and image quality degradation.
Kim, Dae Wook +7 more
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Design and Development of an acoustic positioning system for a cubic kilometre underwater neutrino telescope [PDF]
En los últimos años los telescopios submarinos de neutrinos han cobrado una mayor importancia ya que consisten en un nuevo y único instrumento para observar el Universo.
Larosa ., Giuseppina
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