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The IAU 2000 Resolutions for Astrometry, Celestial Mechanics, and Metrology in the Relativistic Framework: Explanatory Supplement

Soffel, M. (author)
Klioner, S. A. (author)
Petit, G. (author)
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Wolf, P. (author)
Kopeikin, S. M. (author)
Bretagnon, P. (author)
Brumberg, V. A. (author)
Capitaine, N. (author)
Damour, T. (author)
Fukushima, T. (author)
Guinot, B. (author)
Huang, T.-Y. (author)
Lindegren, Lennart (author)
Lund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science
Ma, C. (author)
Nordtvedt, K. (author)
Ries, J. C. (author)
Seidelmann, P. K. (author)
Vokrouhlický, D. (author)
Will, C. M. (author)
Xu, C. (author)
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 (creator_code:org_t)
American Astronomical Society, 2003
2003
English.
In: Astrophysical Journal. - : American Astronomical Society. - 0004-637X. ; 126:6, s. 2687-2706
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • We discuss the IAU resolutions B1.3, B1.4, B1.5, and B1.9 that wereadopted during the 24th General Assembly in Manchester, 2000, andprovides details on and explanations for these resolutions. It isexplained why they present significant progress over the correspondingIAU 1991 resolutions and why they are necessary in the light of presentaccuracies in astrometry, celestial mechanics, and metrology. In fact,most of these resolutions are consistent with astronomical models andsoftware already in use. The metric tensors and gravitational potentialsof both the Barycentric Celestial Reference System and the GeocentricCelestial Reference System are defined and discussed. The necessity andrelevance of the two celestial reference systems are explained. Thetransformations of coordinates and gravitational potentials arediscussed. Potential coefficients parameterizing the post-Newtoniangravitational potentials are expounded. Simplified versions of the timetransformations suitable for modern clock accuracies are elucidated.Various approximations used in the resolutions are explicated andjustified. Some models (e.g., for higher spin moments) that serve thepurpose of estimating orders of magnitude have actually never beenpublished before.

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Keyword

Astrometry
Celestial Mechanics
Time
Reference Systems

Publication and Content Type

art (subject category)
ref (subject category)

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