منابع مشابه
Wide-field tracking with zenith-pointing telescopes
Equipped with a suitable optical relay system, telescopes employing low-cost fixed primary mirrors could point and track while delivering high-quality images to a fixed location. Such an optical tracking system would enable liquid-mirror telescopes to access a large area of sky and employ infrared detectors and adaptive optics. Such telescopes could also form the elements of an array in which l...
متن کاملGeneric Misalignment Aberration Patterns in Wide-Field Telescopes
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 aberration patterns arise: one each for coma, astigmatism and curvature of field and two for distortion. Each of these misalignment patterns is...
متن کاملBrief historical remarks concerning one type of wide-field catadioptric telescopes
As it is clear from its name, the telescope has 300-mm aperture and 7° (52.1 mm) field of view. The optical layout of the f/1.44 telescope consists of a three-lens front corrector, two mirrors, and a two-lens rear corrector. All surfaces are spherical nevertheless the design yields sharp images: the RMS spot diameter is less than 4 μm (1′′.9) in the integral light 0.42 – 0.84 μm. The diameter o...
متن کاملWide-field prime-focus Imaging Atmospheric Cherenkov Telescopes: A systematic study
By means of third-order optical theory as well as ray-tracing simulations we have investigated the feasibility of wide-field imaging atmospheric Cherenkov telescopes with a reflective prime-focus design. For a range of desired optical resolutions, we have determined the largest available field-of-view of single-piece spherical, singlepiece parabolic, tessellated spherical, tessellated parabolic...
متن کاملWide field aplanatic two - mirror telescopes for ground - based γ - ray
The field of very high energy (VHE) ground-based γ-ray astronomy, pioneered by the Whipple 10m atmospheric Cherenkov telescope (ACT) [ 1], is being revolutionized by the second generation observatories, H.E.S.S. [ 2], MAGIC [ 3], and VERITAS [ 4]. Dozens of new γ-ray sources, some representing new classes of VHE emitters, have been discovered during the last decade [ 5]. In space based gamma-ra...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1973
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/163.4.357