Astronomy at High Angular Resolution

Astronomy at High Angular Resolution

Author: Henri M. J. Boffin

Publisher: Springer

Published: 2016-08-24

Total Pages: 284

ISBN-13: 3319397397

DOWNLOAD EBOOK

This book offers an essential compendium of astronomical high-resolution techniques. Recent years have seen considerable developments in such techniques, which are critical to advances in many areas of astronomy. As reflected in the book, these techniques can be divided into direct methods, interferometry, and reconstruction methods, and can be applied to a huge variety of astrophysical systems, ranging from planets, single stars and binaries to active galactic nuclei, providing angular resolution in the micro- to tens of milliarcsecond scales. Written by experts in their fields, the chapters cover adaptive optics, aperture masking imaging, spectra disentangling, interferometry, lucky imaging, Roche tomography, imaging with interferometry, interferometry of AGN, AGN reverberation mapping, Doppler- and magnetic imaging of stellar surfaces, Doppler tomography, eclipse mapping, Stokes imaging, and stellar tomography. This book is intended to enable a next generation of astronomers to apply high-resolution techniques. It informs readers on how to achieve the best angular resolution in the visible and near-infrared regimes from diffraction-limited to micro-arcsecond scales.


Diffraction-Limited Imaging with Large and Moderate Telescopes

Diffraction-Limited Imaging with Large and Moderate Telescopes

Author: Swapan K. Saha

Publisher: World Scientific

Published: 2007

Total Pages: 633

ISBN-13: 981270888X

DOWNLOAD EBOOK

This book deals with the fundamentals of wave optics, polarization, interference, diffraction, imaging, and the origin, properties, and optical effects of turbulence in the Earth's atmosphere. Techniques developed during the last few decades to overcome atmospheric image degradation (including passive methods, speckle interferometry in particular, and active methods such as adaptive optics), are highlighted. Also discussed are high resolution sensors, image processing, and the astronomical results obtained with these techniques.


Seeing the Unseen

Seeing the Unseen

Author: Harold A. McAlister

Publisher: IOP Publishing Limited

Published: 2020

Total Pages: 288

ISBN-13: 9780750322065

DOWNLOAD EBOOK

This book provides a detailed history of stellar interferometry as practised at Mount Wilson Observatory. It covers the origin of the field in the early 19th Century, and its subsequent development throughout the last hundred years at the observatory, including the people, instruments, and methods involved in advancing high angular resolution astronomy. Additionally, two extensive appendices cover the importance of Mount Wilson today as well as an interferometry primer. It is an excellent book for historians, astronomers and anyone interested Mount Wilson. Key Features Describes the revolutionary work performed at the Mount Wilson Observatory in stellar astrophysics, extragalactic astronomy, and its role in high spatial resolution astronomy Focuses on the history and heritage of Mount Wilson Accessible to specialists, historians, and advanced amateur astronomers


High Angular Resolution in Astrophysics

High Angular Resolution in Astrophysics

Author: A. Lagrange

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 404

ISBN-13: 9400900414

DOWNLOAD EBOOK

Over the last decade many efforts have been made to develop high angular resolution techniques in astrophysics. Combined with imaging facilities, they have rapidly proved their efficiency and have already led to major astrophysical results. During the decade to come, astronomers will be offered new, even more sophisticated high angular resolution tools, especially in the IR and optical domains, coupled with much bigger telescopes, either on the ground or in space. In such a context of rapidly evolving techniques and a growing need for higher angular resolution to test theories or discover new objects, the present book reviews both instrumental and scientific aspects. The main questions addressed are: what kind of science will benefit from high angular resolution techniques? How can they best be used? Audience: The book is accessible to students and research workers in both instrumental and astrophysical aspects.


Astrotomography

Astrotomography

Author: H.M.J. Boffin

Publisher: Springer

Published: 2008-01-11

Total Pages: 451

ISBN-13: 3540453393

DOWNLOAD EBOOK

This comprehensive and unique reference work on astro-tomography is based on expanded and suitably edited contributions to the 1st International Workshop on Astro-tomography. The focus is on studying indirect imaging and subsequent reconstruction techniques with applications in all areas of observational astronomy, astrophysics and cosmology. Detailed subject and object indexes, together with a list of useful resources on the Internet, will help the reader to use this book in a most efficient way.


Principles of Stellar Interferometry

Principles of Stellar Interferometry

Author: Andreas Glindemann

Publisher: Springer Science & Business Media

Published: 2011-01-04

Total Pages: 359

ISBN-13: 3642150284

DOWNLOAD EBOOK

The imaging process in stellar interferometers is explained starting from first principles on wave propagation and diffraction. Wave propagation through turbulence is described in detail using Kolmogorov statistics. The impact of turbulence on the imaging process is discussed both for single telescopes and for interferometers. Correction methods (adaptive optics and fringe tracking) are presented including wavefront sensing/fringe sensing methods and closed loop operation. Instrumental techniques like beam combination and visibility measurements (modulus and phase) as well as Nulling and heterodyne interferometry are described. The book closes with examples of observing programmes linking the theory with individual astrophysical programmes.


Astronomy and Astrophysics in the New Millennium

Astronomy and Astrophysics in the New Millennium

Author: National Research Council

Publisher: National Academies Press

Published: 2002-02-07

Total Pages: 401

ISBN-13: 0309070376

DOWNLOAD EBOOK

In preparing the report, Astronomy and Astrophysics in the New Millenium , the AASC made use of a series of panel reports that address various aspects of ground- and space-based astronomy and astrophysics. These reports provide in-depth technical detail. Astronomy and Astrophysics in the New Millenium: An Overview summarizes the science goals and recommended initiatives in a short, richly illustrated, non-technical booklet.


Orthogonal Polynomials of Several Variables

Orthogonal Polynomials of Several Variables

Author: Charles F. Dunkl

Publisher: Cambridge University Press

Published: 2014-08-21

Total Pages: 439

ISBN-13: 1107071895

DOWNLOAD EBOOK

Updated throughout, this revised edition contains 25% new material covering progress made in the field over the past decade.


Very High Angular Resolution Imaging

Very High Angular Resolution Imaging

Author: J.G. Robertson

Publisher: Springer Science & Business Media

Published: 2013-12-01

Total Pages: 505

ISBN-13: 9401108803

DOWNLOAD EBOOK

The 1990s are proving to be a very exciting p&iod for high angular resolution astronomy. At radio wavelengths a combination of new array instruments and pow erful imaging algorithms have generated images of unprecedented resolution and quality. In the optical and infrared, the great technical difficulties associated with constructing separated-aperture interferometers have been largely overcome, and many new instruments are now operating or are being developed. As these pro grams start to produce observational results they will be able to draw extensively on the experience gained by the radio-interferometry community. Thus it seemed that the time was ripe for a meeting which would bring together workers from all wavelength ranges to discuss the details of the science and art of "Very High Angular Resolution Imaging" . While the main emphasis of Symposium No. 158 was on high resolution tech niques from the radio, mm-wave, infrared and optical bands, it also provided an opportunity for presentation of astronomical results from these techniques. As well as giving our colleagues from the Northern Hemisphere a break from midwinter, the location of the Symposium in Australia recognised the continuing development of astronomical interferometry in this country, especially the recent completion of the Australia Telescope radio array, and the progress toward com missioning of the Sydney University Stellar Interferometer. A number of the par ticipants visited these instruments during the post-symposium tour.


Principles of Optics

Principles of Optics

Author: Max Born

Publisher: Elsevier

Published: 2013-06-01

Total Pages: 871

ISBN-13: 148310320X

DOWNLOAD EBOOK

Principles of Optics: Electromagnetic Theory of Propagation, Interference and Diffraction of Light, Sixth Edition covers optical phenomenon that can be treated with Maxwell's phenomenological theory. The book is comprised of 14 chapters that discuss various topics about optics, such as geometrical theories, image forming instruments, and optics of metals and crystals. The text covers the elements of the theories of interference, interferometers, and diffraction. The book tackles several behaviors of light, including its diffraction when exposed to ultrasonic waves. The selection will be most useful to researchers whose work involves understanding the behavior of light.