The Effects of Atmospheric Turbulence in Optical Astronomy
| Author | : François Roddier |
| Publisher | : |
| Total Pages | : 96 |
| Release | : 1981 |
| Genre | : Atmospheric turbulence |
| ISBN | : |
The Effects Of Atmospheric Turbulence In Optical Astronomy
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Optical Turbulence
| Author | : Elena Masciadri |
| Publisher | : World Scientific |
| Total Pages | : 415 |
| Release | : 2009 |
| Genre | : Science |
| ISBN | : 1848164858 |
This book collects most of the talks and poster presentations presented at the "Optical Turbulence ? Astronomy meets Meteorology" international conference held on 15?18 September, 2008 at Nymphes Bay, Alghero, Sardinia, Italy. The meeting aimed to deal with one of the major causes of wavefront perturbations limiting the astronomical high-angular-resolution observations from the ground. The uniqueness of this meeting has been the effort to attack this topic in a synergic and multidisciplinary approach promoting constructive discussions between the actors of this science ? the astronomers, meteorologists, physicists of the atmosphere and the experts in adaptive optics and interferometry techniques whose main goal is to correct, in real-time, the wavefront perturbations induced by atmospheric turbulence to restore at the telescope foci the best available image quality.
Optical Turbulence: Astronomy Meets Meteorology - Proceedings Of The Optical Turbulence Characterization For Astronomical Applications
| Author | : Elena Masciadri |
| Publisher | : World Scientific |
| Total Pages | : 415 |
| Release | : 2009-09-14 |
| Genre | : Science |
| ISBN | : 1908978171 |
This book collects most of the talks and poster presentations presented at the 'Optical Turbulence — Astronomy meets Meteorology' international conference held on 15-18 September, 2008 at Nymphes Bay, Alghero, Sardinia, Italy. The meeting aimed to deal with one of the major causes of wavefront perturbations limiting the astronomical high-angular-resolution observations from the ground. The uniqueness of this meeting has been the effort to attack this topic in a synergic and multidisciplinary approach promoting constructive discussions between the actors of this science — the astronomers, meteorologists, physicists of the atmosphere and the experts in adaptive optics and interferometry techniques whose main goal is to correct, in real-time, the wavefront perturbations induced by atmospheric turbulence to restore at the telescope foci the best available image quality./a
Effects of Atmospheric Turbulence on Optical Instrumentation
| Author | : Randolph A. Becker |
| Publisher | : |
| Total Pages | : 17 |
| Release | : 1961 |
| Genre | : |
| ISBN | : |
The results of research on optical turbulence at White Sands Missile Range are presented. It has been shown that elevating camera stations 33 feet above ground level can yield nearly a threefold increase in optical resolution during periods of atmospheric turbulence. Early research postulated the existence of thermal-induced air-lenses as the cause of optical turbulence effects. Recent research has shown that air-lenses can account for most of the observed effects. The 'prism' concept of turbulence appears to be unnecessary for explaining trubulence -induced image motion. The dependence of the optical effects of turbulence upon exposure time and aperture size is discussed qualitatively. The source of optical turbulence in the atmosphere and a method of measuring the trubulence-generating potential of various terrain surfaces are described on the basis of micrometerology. This research has been limited to an investigation of optical turbulence during the period from sunrise to sunset. However, many of the results apply to the nighttime turbulence encountered by astronomers. (Author).
Adaptive Optics for Astronomical Telescopes
| Author | : John W. Hardy |
| Publisher | : Oxford Optical and Imaging Sci |
| Total Pages | : 452 |
| Release | : 1998 |
| Genre | : Science |
| ISBN | : 9780195090192 |
This book by one of the leaders in adaptive optics covers the fundamental theory and then describes in detail how this technology can be applied to large ground-based telescopes to compensate for the effects of atmospheric turbulence. It includes information on basic adaptive optics components and technology, and has chapters devoted to atmospheric turbulence, optical image structure, laser beacons, and overall system design. The chapter on system design is particularly detailed and includes performance estimation and optimization. Combining a clear discussion of physical principles with numerous real-world examples, this book will be a valuable resource for all graduate students and researchers in astronomy and optics.
An Investigation of Atmospheric Turbulence by Stellar Observations
| Author | : Jack Lytle Bufton |
| Publisher | : |
| Total Pages | : 188 |
| Release | : 1971 |
| Genre | : Astrophysics |
| ISBN | : |
This study of the optical effects of atmospheric turbulence concentrates on the stellar observation problem. When an infinite plane wave from an incoherent stellar source is sampled by an earth-based telescope, the resultant stellar image exhibits random fluctuations in intensity, position, and size due to turbulence-induced scattering in the intervening atmosphere. One familiar aspect of this problem is the scintillation of starlight apparent to the naked eye. The central aim is to express optical statistics in terms of refractive-index structure constant which pertains to strength of turbulence along the optical path. Data is presented on stellar and meteorological observations made between fall 1968 and spring 1969 with a 0.152-meter diameter refracting telescope. Data was recorded simultaneously on the three parameters of image intensity, motion, and size. The data is interpreted in terms of the theory and used to estimate strength of turbulence. The central result is a series of profiles for refractive-index structure constant along the vertical path. These are constructed using stellar data to calculate parameters of a model.
Imaging Through Turbulence
| Author | : Michael C. Roggemann |
| Publisher | : CRC Press |
| Total Pages | : 389 |
| Release | : 2018-02-06 |
| Genre | : Technology & Engineering |
| ISBN | : 1351439308 |
Learn how to overcome resolution limitations caused by atmospheric turbulence in Imaging Through Turbulence. This hands-on book thoroughly discusses the nature of turbulence effects on optical imaging systems, techniques used to overcome these effects, performance analysis methods, and representative examples of performance. Neatly pulling together widely scattered material, it covers Fourier and statistical optics, turbulence effects on imaging systems, simulation of turbulence effects and correction techniques, speckle imaging, adaptive optics, and hybrid imaging. Imaging Through Turbulence is written in tutorial style, logically guiding you through these essential topics. It helps you bring down to earth the complexities of coping with turbulence.
Adaptive Optics for Astronomy
| Author | : D.M. Alloin |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 368 |
| Release | : 1994-03-31 |
| Genre | : Science |
| ISBN | : 9780792327486 |
The blossoming of adaptive optical techniques has brought about a revolution in the field of astronomical observation. Coupled with the new generation of large, ground-based telescopes, it allows us to achieve an unprecendented angular resolution in the analysis of faint astronomical sources at optical wavelengths. This book provides the basic concepts of adaptive optics, discusses the possible instrumental strategies and the state-of-the-art technical achievements of this development and presents the key astrophysical programs which will most benefit from it. Over fifteen well-known experts have contributed to making this volume a comprehensive one, with steady progression as well as full coverage of the various aspects of the field. Students graduating in optical sciences and astrophysics, astronomers, engineers interested in atmospheric turbulence compensation will find this book a reference text on the subject.
Adaptive Optics in Astronomy
| Author | : François Roddier |
| Publisher | : Cambridge University Press |
| Total Pages | : 421 |
| Release | : 1999-06-17 |
| Genre | : Science |
| ISBN | : 052155375X |
Adaptive optics is set to revolutionise the future of astronomy; this is the first book on the subject and is set to become the standard reference.
