Space-Time Reference Systems. 1st ed. 2013

種類:

電子ブック

責任表示:

by Michael Soffel, Ralf Langhans

出版情報:

Berlin, Heidelberg : Springer Berlin Heidelberg : Imprint: Springer, 2013

著者名:

• Soffel, Michael.
• Langhans, Ralf.
• SpringerLink (Online service)

シリーズ名:

Astronomy and Astrophysics Library ;

ISBN:

9783642302268 [3642302262]    

注記:

List of Symbols -- Preface -- 1 Introduction -- 2 Time -- 3 Space-Time -- 4 Barycentric Dynamical Reference System -- 5 Classical Astronomical Coordinates -- 6 Astrometry -- 7 Celestial Reference System -- 8 Terrestrial Reference System -- 9 From the GCRS to the ITRS -- 10 Astronomical Software – Yearbooks -- 11 Astronomical constants -- References -- List of acronyms -- Appendix A: Solutions to Exercises -- Appendix B: Description of the AstroRef Package -- Index 304.
The high accuracy of modern astronomical spatial-temporal reference systems has made them considerably complex. This book offers a comprehensive overview of such systems. It begins with a discussion of ‘The Problem of Time’, including recent developments in the art of clock making (e.g., optical clocks) and various time scales. The authors address  the definitions and realization of spatial coordinates by reference to remote celestial objects such as quasars. After an extensive treatment of classical equinox-based coordinates, new paradigms for setting up a celestial reference system are introduced that no longer refer to the translational and rotational motion of the Earth. The role of relativity in the definition and realization of such systems is clarified. The topics presented in this book are complemented by exercises (with solutions). The authors offer a series of files, written in Maple, a standard computer algebra system, to help readers get a feel for the various models and orders of magnitude. Beyon

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