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Astrometry encompasses all that is necessary to provide the positions and motions of celestial bodies. This includes observational techniques, instrumentation, processing and analysis of observational data, reference systems and frames, and the resulting astronomical phenomena. Astrometry is fundamental to all other fields of astronomy, from the pointing of telescopes, to navigation and guidance systems, to distance and motion determinations for astrophysics. In the last few decades, new observational techniques have enabled improvements in accuracy by orders of magnitude. Starting from basic principles, this 2004 book provides the fundamentals for this new astrometry at milli- and micro-arcsecond accuracies. Topics include: basics of general relativity; co-ordinate systems; vectors, tensors, quaternions, and observational uncertainties; determination and use of the celestial and terrestrial reference systems and frames; applications of new observational techniques; present and future star catalogues and double star astrometry. This comprehensive reference will be invaluable for graduate students and research astronomers.
Astrometry. --- Astrométrie. --- Positional astronomy --- Spherical astronomy --- Astrometry --- Astrométrie
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A masterly survey of the last 13 years of Very Long Baseline Interferometry, reviewed in light of the most advanced astronomical observations. Topics covered include: Nonthermal emission from extragalactic radio sources; Principles of synchrotron emission in relation to astrophysics; Theory of relativistic jets; Young, powerful radio sources and their evolution; Scintillation in extragalactic radio sources; Radio and optical interferometry; Radio polarimetry; Unified schemes; Deep fields; Tropospheric and ionospheric phase calibration; Supernovae; VLBI for geodesy and geodynamics.
Very long baseline interferometry --- Astrophysics. --- Astrometry. --- Geodesy. --- Degrees of latitude and longitude --- Geodetics --- Positional astronomy --- Astronomical physics --- VLBI (Radio astronomy) --- Interférométrie à très grandes bases --- Interférométrie à très grandes bases --- Physics. --- Geophysics. --- Observations, Astronomical. --- Astronomy --- Astronomy, Observations and Techniques. --- Geophysics/Geodesy. --- Observations. --- Geophysics --- Geomatics --- Mathematical geography --- Surveying --- Spherical astronomy --- Cosmic physics --- Physics --- Interferometry --- Radio astronomy --- Congresses --- Congrès --- EPUB-LIV-FT LIVPHYSI SPRINGER-B --- Physical geography. --- Geography --- Congresses. --- Astronomy—Observations. --- Geological physics --- Terrestrial physics --- Earth sciences --- Astronomical observations --- Observations, Astronomical
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