Results 11 to 20 of about 81,818 (284)
PhotoniX, 2023 Astrophysics and cosmology in the coming decades urgently need a large field-of-view (FOV), highly multiplexed spectroscopic survey telescope satisfying challenging image quality and stability requirements.
Yifan Zhang +11 more
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A 20 m wide-field diffraction-limited telescope [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2020 A 20 m space telescope is described with an unvignetted 1° field of view—a hundred times larger in area than fields of existing space telescopes. Its diffraction-limited images are a hundred times sharper than from wide-field ground-based telescopes and extend over much if not all the field, 40 arcmin diameter at 500 nm wavelength, for example.
Ryker W. Eads, J. Roger P. Angel
openaire +2 more sources
Tiling strategies for optical follow-up of gravitational wave triggers by wide field of view telescopes [PDF]
, 2016 Binary neutron stars are among the most promising candidates for joint gravitational-wave and electromagnetic astronomy. The goal of this work is to investigate the strategy of using gravitational wave sky-localizations for binary neutron star systems ...
Bloemen, Steven +4 more
core +6 more sources
Target Detection Framework for Lobster Eye X-Ray Telescopes with Machine-learning Algorithms
The Astrophysical Journal Supplement Series, 2023 Lobster eye telescopes are ideal monitors to detect X-ray transients because they could observe celestial objects over a wide field of view in the X-ray band.
Peng Jia, Wenbo Liu, Yuan Liu, Haiwu Pan
doaj +1 more source
Freeform Wide Field-of-View Spaceborne Imaging Telescope: From Design to Demonstrator
Sensors, 2022 Wide field-of-view imaging optics offer a huge potential for space-based Earth observation enabling the capture of global data. Reflective imaging telescopes are often favored, as they do not show chromatic aberrations and are less susceptible to ...
Luca Schifano +7 more
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Third-Generation Calibrations for MeerKAT Observation
Galaxies, 2021 Superclusters and galaxy clusters offer a wide range of astrophysical science topics with regards to studying the evolution and distribution of galaxies, intra-cluster magnetization mediums, cosmic ray accelerations and large scale diffuse radio sources ...
Viral Parekh +4 more
doaj +1 more source
Generic Misalignment Aberration Patterns in Wide-Field Telescopes [PDF]
, 2011 Axially symmetric telescopes produce well known "Seidel" off-axis third-order aberration patterns: coma, astigmatism, curvature of field and distortion. When axial symmetry is broken by the small misalignments of optical elements, additional third-order ...
Levinson, Rebecca Sobel +1 more
core +3 more sources
Wide-field hard x-ray survey telescope: ProtoEXIST1 [PDF]
SPIE Proceedings, 2007 11 pages, 9 figures, SPIE Conference Proceedings (Hard X-Ray and Gamma-Ray Detector Physics IX, 6706-10)
Hong, J. +19 more
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Obstructed Telescopes Versus Unobstructed Telescopes for Wide Field Survey—A Quantitative Analysis [PDF]
Publications of the Astronomical Society of the Pacific, 2014 Telescopes with unobstructed pupil are known to deliver clean point spread function (PSF) to their focal plane, in contrast to traditional telescopes with obstructed pupil. Recent progress in the manufacturing aspheric surfaces and mounting accuracy favors unobstructed telescopes over obstructed telescopes for science cases that demand stable and clean
Singaravelu, Balasubramanian +1 more
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Study of the Blazhko Type RRc stars in the Stripe 82 Region Using SDSS and ZTF
The Astronomical Journal, 2023 RR Lyrae stars (RRLs) are pulsating stars, many of which also show a long-term variation called the Blazhko effect which is a modulation of amplitude and phase of the lightcurve.
Vaidehi Varma +2 more
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