Ground Based Telescopes
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Astronomical Optics
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Author : Daniel J. Schroeder
language : en
Publisher: Elsevier
Release Date : 2012-12-02
Astronomical Optics written by Daniel J. Schroeder and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-02 with Science categories.
Written by a recognized expert in the field, this clearly presented, well-illustrated book provides both advanced level students and professionals with an authoritative, thorough presentation of the characteristics, including advantages and limitations, of telescopes and spectrographic instruments used by astronomers of today. - Written by a recognized expert in the field - Provides both advanced level students and professionals with an authoritative, thorough presentation of the characteristics, including advantages and limitations, of telescopes and spectrographic instruments used by astronomers of today
Ground Based Telescopes
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Author :
language : en
Publisher:
Release Date : 2004
Ground Based Telescopes written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Astronomical observatories categories.
Frontiers Of Space And Ground Based Astronomy
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Author : Willem Wamsteker
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Frontiers Of Space And Ground Based Astronomy written by Willem Wamsteker and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
ROSAT Observations G. HASINGER Max-Planck-Institut flir extraterrestrische Physik, D-85740 Garching, Germany Abstract. This review describes the most recent advances in the study of the extragalactic soft X-ray background and what we can learn about its constituents. The deepest pointed observations with the ROSAT PSPC are discussed. The logN-logS relation is presented, which reaches to the faintest X-ray fluxes and to the highest AGN surface densities ever achieved. The N(>S) relation shows a 2 density in excess of 400 deg- at the faintest fluxes and a flattening below the Einstein Deep Survey limit. About 60% of the extragalactic background has been resolved in the deepest field. Detailed source spectra and first optical and radio identifications will be discussed. The results are put into perspective of the higher energy X -ray background. Key words: X-rays, background radiations, active galactic nuclei. 1. Introduction The extragalactic X-ray background (XRB), discovered about 30 years ago, has been studied extensively with many X-ray experiments, in particular with the satel lites HEAO I and II (see ego Boldt 1987) and with ROSAT (e. g. Hasinger et aI. , 1993). Figure 1 shows a compilation of some of the most recent spectral measure ments for the X-ray background. Over the energy range from 3 to about 100 keY its spectrum can be well approximated by an optically thin thermal bremsstrahlung model with kT ~ 40 keY, while at lower X-ray energies a steepening into a new component has been observed observed (e. g.
Large Ground Based Telescopes
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Author : Jacobus M. Oschmann (Jr.)
language : en
Publisher: SPIE-International Society for Optical Engineering
Release Date : 2003
Large Ground Based Telescopes written by Jacobus M. Oschmann (Jr.) and has been published by SPIE-International Society for Optical Engineering this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Nature categories.
Space Telescopes
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Author : Steff Jaywan
language : en
Publisher: Dedona Publishing
Release Date :
Space Telescopes written by Steff Jaywan and has been published by Dedona Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on with Science categories.
Space telescopes are powerful instruments designed to observe astronomical objects and phenomena from outside the Earth's atmosphere. Unlike ground-based telescopes, which suffer from atmospheric distortion, space telescopes provide a clearer and more detailed view of the universe. They have revolutionized our understanding of the cosmos by capturing images and data across various wavelengths of light, from visible to infrared to ultraviolet and beyond. The primary advantage of space telescopes is their ability to operate above the Earth's atmosphere. The atmosphere absorbs and scatters light, which limits the capabilities of ground-based observations. By placing telescopes in space, astronomers can avoid these issues and achieve several key benefits. Space telescopes have an unobstructed view, not being affected by weather, daylight, or atmospheric turbulence, allowing for continuous and consistent observations. They also have broader wavelength coverage, as Earth's atmosphere blocks many wavelengths of light, such as ultraviolet and X-rays. This enables space telescopes to detect and study these wavelengths, offering a more comprehensive view of the universe. Moreover, without atmospheric distortion, space telescopes can capture sharper and more detailed images.
Adaptive Optics For Astronomical Telescopes
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Author : John W. Hardy
language : en
Publisher:
Release Date : 1998
Adaptive Optics For Astronomical Telescopes written by John W. Hardy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Language Arts & Disciplines categories.
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.
Ground Based And Airborne Telescopes
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Author :
language : en
Publisher:
Release Date : 2006
Ground Based And Airborne Telescopes written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Astronomical observatories categories.
The Next Generation Space Telescope
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Author : H. S. Peter Stockman
language : en
Publisher:
Release Date : 1998
The Next Generation Space Telescope written by H. S. Peter Stockman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Orbiting astronomical observatories categories.
Space Telescopes
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Author : Neil English
language : en
Publisher: Springer
Release Date : 2016-11-08
Space Telescopes written by Neil English and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-11-08 with Science categories.
Space telescopes are among humankind’s greatest scientific achievements of the last fifty years. This book describes the instruments themselves and what they were designed to discover about the Solar System and distant stars. Exactly how these telescopes were built and launched and the data they provided is explored. Only certain kinds of radiation can penetrate our planet's atmosphere, which limits what we can observe. But with space telescopes all this changed. We now have the means to "see" beyond Earth using ultraviolet, microwave, and infrared rays, X-rays and gamma rays. In this book we meet the pioneers and the telescopes that were built around their ideas. This book looks at space telescopes not simply chronologically but also in order of the electromagnetic spectrum, making it possible to understand better why they were made.
Space Telescopes
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Author : Neil English
language : en
Publisher: Springer
Release Date : 2016-11-17
Space Telescopes written by Neil English and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-11-17 with Science categories.
Space telescopes are among humankind’s greatest scientific achievements of the last fifty years. This book describes the instruments themselves and what they were designed to discover about the Solar System and distant stars. Exactly how these telescopes were built and launched and the data they provided is explored. Only certain kinds of radiation can penetrate our planet's atmosphere, which limits what we can observe. But with space telescopes all this changed. We now have the means to "see" beyond Earth using ultraviolet, microwave, and infrared rays, X-rays and gamma rays. In this book we meet the pioneers and the telescopes that were built around their ideas. This book looks at space telescopes not simply chronologically but also in order of the electromagnetic spectrum, making it possible to understand better why they were made.