Livros e Apostilas de Astronomia

Telescópios ... Página 6

The Science and Art of Using Astronomical Telescopes

Publisher: Springer-Verlag New York Inc. | Pages: 411 | 2009 | ISBN: 0387764690 | PDF | 11,5 MB

Amateur astronomers have to start somewhere. Most begin by buying a modest astronomical telescope and getting to know the night sky. After a while, many want to move on to the next stage, but this can be problematic. The magazines advertise a mass of commercially-made equipment – some of it very expensive – which can represent a major financial outlay. The trick is to choose the right equipment, and then use it to its fullest extent.

Observing Skills: The Science and Art of using Astronomical Telescopes provides the required information. First, it explains how to get the best from entry-level equipment (that upgrade may not even be needed for a year or two!). Second, it explains how to select equipment that is at the ‘next level’, and describes how use more advanced telescopes and accessories.

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Optics in Astrophysics

Springer | 2005-12-22 | ISBN: 1402034350 | 422 pages | PDF | 16,8 MB

Astrophysics is facing challenging aims such as deep cosmology at redshift higher than 10 to constrain cosmology models, or the detection of exoplanets, and possibly terrestrial exoplanets, and several others. It requires unprecedented ambitious R&D programs, which have definitely to rely on a tight cooperation between astrophysics and optics communities. The book addresses most of the most critical interdisciplinary domains where they interact, or where they will do. A first need is to collect more light, i.e. telescopes still larger than the current 8-10 meter class ones. Decametric, and even hectometric, optical (from UV to IR wavelengths) telescopes are being studied. Whereas up to now the light collecting surface of new telescopes was approximately 4 times that of the previous generation, now this factor is growing to 10 to 100.

This quantum leap urges to implement new methods or technologies developed in the optics community, both in academic labs and in the industry. Given the astrophysical goals and technological constraints, new generation adaptive optics with a huge number of actuators and laser guide stars devices have to be developed, from theoretical bases to experimental works. Two other newcomers in observational astrophysics are interferometric arrays of optical telescopes and gravitational wave detectors. Up-to-date reviews of detectors and of spectrographs are given, as well as forefront R&D in the field of optical coatings and of guided optics. Possible new ways to handle photons are also addressed, based on quantum physics.

More and more, signal processing algorithms are a part and parcel of any modern instrumentation. Thus finally the book gives two reviews about wavefront processing and about image restoration and deconvolution algorithms for ill conditioned cases.

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Numerical Simulation of Optical Wave Propagation With Examples in Matlab

Society of Photo Optical | 2010-08-05 | ISBN: 0819483265 | 212 pages | PDF | 1 MB

Wave-optics simulation is an immensely useful tool for many applications. The simulation techniques in this book are directly applicable to atmospheric imaging, astronomy, adaptive optics, free-space optical communications, and LADAR. In addition, many of the basic techniques are applicable to integrated optics and nonlinear, anisotropic, and optically active media.

Numerical Simulation of Optical Wave Propagation is solely dedicated to wave-optics simulations. The book discusses digital Fourier transforms (FT), FT-based operations, multiple methods of wave-optics simulations, sampling requirements, and simulations in atmospheric turbulence.

This book will benefit optical scientists and engineers at all levels as a guide for FT-based data analysis, imaging system analysis, and wave-optics simulations. Professors can use this book to augment their Fourier optics courses and for independent studies with students. Problem sets are given at the end of each chapter. Students will learn principles and techniques from this book that can be utilized throughout their careers in optics.

Table of Contents

1. Foundations of Scalar Diffraction Theory
2. Digital Fourier Transforms
3. Simple Computations Using Fourier Transforms
4. Fraunhofer Diffraction and Lenses
5. Imaging Systems and Aberrations
6. Fresnel Diffraction in Vacuum
7. Sampling Requirements for Fresnel Diffraction
8. Relaxed Sampling Constraints with Partial Propagations
9. Propagation through Atmospheric Turbulence
Appendix A: Function Definitions
Appendix B: MATLAB Code Listings

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Martin Peston, "A User's Guide to the Meade LXD55 and LXD75 Telescopes"
Springer | 2007 | ISBN: 0387364897 | 256 pages | PDF | 20,8 MB

This book provides a comprehensive introductory guide to "choosing and using" an LXD55 / 75 computer-controlled "Goto" series of telescopes, and is useful for both beginners and more advanced practical amateur astronomers. It also provides a comprehensive guide to using Autostar(TM), the computerized "Goto" handset.

There is already a large user-base of these telescopes around the world, but there is as yet no single comprehensive guide commercially available for users to fully get to grips with using the LXD series of telescopes. The manufacturer’s manuals are not detailed enough to be of real help to beginners, nor does it provide advanced technical tips and user information to help the experienced astronomer get the best out of these instruments. This guide brings together the information needed to help owners get the best out of their LXD telescopes.

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Geometric Optics: Theory and Design of Astronomical Optical Systems Using Mathematica
Birkhäuser Boston | 2009 | ISBN: 0817648712 | 224 pages | PDF | 6,5 MB

This book—unique in the literature—provides readers with the mathematical background needed to design many of the optical combinations that are used in astronomical telescopes and cameras. The results presented in the work were obtained by using a different approach to third-order aberration theory as well as the extensive use of the software package Mathematica®.

The newly presented approach to third-order aberration theory adopted is based on Fermat’s principle and the use of particular optical paths—not rays—termed stigmatic paths, allowing for easy derivation of third-order formulae. This approach enables readers to understand and handle the formulae required to design optical combinations without resorting to the much more complex Hamiltonian formalism and Seidel's relations.

Additional features and topics:

* Presentation of the third-order design of cameras and telescopes with the aid of Mathematica eliminates the need for tedious computer calculations

* Mathematica notebooks accompanying each optical combination analyzed in the book are available for download at

* Discussion and analysis of specific optical devices: Newtonian and Cassegrain telescopes; Schmidt, Wright, Houghton, and Maksutov cameras; and other optical combinations, such as the Klevtsov telescope and the Baker–Schmidt flat-field camera

* Additional supplementary material available at the publisher's website

* Many worked-out examples and exercises

Geometric Optics is an excellent reference for advanced graduate students, researchers, and practitioners in applied mathematics, engineering, astronomy, and astronomical optics. The work may be used as a supplementary textbook for graduate-level courses in astronomical optics, optical design, optical engineering, programming with Mathematica, or geometric optics.

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Jr., Paul R. Yoder "Opto-Mechanical Systems Design, 3 Ed."
CRC | 2005-12-09 | ISBN: 1574446991 | 864 pages | PDF | 23,3 MB

After nearly two decades, Paul Yoder's Opto-Mechanical Systems Design continues to be the reference of choice for professionals fusing optical and mechanical components into advanced, high-performance instruments. Yoder's authoritative systems-oriented coverage and down-to-earth approach fosters the deep-seated knowledge needed to continually push the field to new limits.

Extensively revised and updated, this Third Edition reflects the massive growth and advancement achieved in the field over the past few years. It systematically examines the building blocks for new optical instruments and details new tools and techniques for designing, building, and testing optical systems hardware.

The book includes revised, broad-based standards, equations for designing 26 types of prisms and lens, mirror, and prism mounts, state-of-the-art examples of designs for large mirrors and their mounts, and an expanded chapter that consolidates information on the design and mounting of metal mirrors.

New sections include special protective coatings, manufacturing techniques, mounting lenses on flexures, and techniques for aligning lenses and lens systems in addition to two new chapters: one on designing and mounting small mirrors, gratings, and pellicles; the other, on analysis methods including damage and failure analysis.

Whether you are designing a high-resolution projector or the most sensitive space telescope, Opto-Mechanical Systems Design, Third Edition supplies the tools you need in a single, concise reference.

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