Proceedings of IAU Colloquium No. 9, The IAU System of Astronomical Constants, Heidelberg, 12-14 August 1970

Beyond the standard IAU framework

We discuss three conceivable scenarios of extension and/or modification of the IAU relativistic resolutions on time scales and spatial coordinates beyond the Standard IAU Framework. These scenarios include: (1) the formalism of the monopole and dipole moment transformations of the metric tensor replacing the scale transformations of time and space coordinates; (2) implementing the parameterized...

IAU XXIX General Assembly

Body Solar system bodies are observed at many scattering angles. The reflection and polarization change withphase angle of light scattered from particulates has been studied for a century in the lab in efforts tounderstand clouds, aerosols, planetary ring systems and planetary regoliths. These effects must beunderstood in order to infer surface properties from astronomical data. The...

Future IERS Products Implementation of the IAU 2000 Resolutions

On one hand, the new resolutions will have an impact on the software packages used by the analysis centers of the various services (IVS, IGS, ILRS, IDS) to compute their EOP series and the definition and conventions concerning the EOP estimates to be reported to the IERS and, on the other hand, there will be an impact on the IERS products themselves. In this paper we will mainly focus on the la...

2000 in Modelling of Stellar Atmospheres, IAU Symposium 210

Long-baseline interferometry at optical and near-infrared wavelengths is an emerging technology which is quickly becoming a useful tool to investigate stellar atmospheres and to compare observations with models. Stellar atmosphere models have so far mainly been constrained by comparisons with stellar spectra which are integrated over the stellar disks. Interferometric observations provide spati...

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