| Issue |
EAS Publications Series
Volume 30, 2008
Spanish Relativity Meeting - Encuentros Relativistas Españoles , ERE2007: Relativistic Astrophysics and Cosmology
|
|
|---|---|---|
| Page(s) | 345 - 348 | |
| DOI | https://doi.org/10.1051/eas:0830058 | |
| Published online | 30 September 2008 | |
A. Oscoz, E. Mediavilla and M. Serra-Ricart (eds)
EAS Publications Series, 30 (2008) 345-348
Astrometric observable and relativistic astrometric catalogues
1
INAF-OATo, Strada Osservatorio 20, Pino Torinese, Torino, Italy
2
University “G. Galileo”, Dept. of Physics, via Marzolo 8, Padova, Italy
We describe a way to compare current relativistic astrometric models accurate to the micro-arcsecond level from which an astrometric catalogue will be deduced. The observed stellar direction can be written as a function of several parts, linking the astrometric observables to the relativistic effects associated to the stellar kinematical properties and distances as seen inside the gravitational field of our Solar System, i.e. the so called relativistic astrometric parameters, providing a tool for comparing the RAMOD framework to the pM/pN approaches.
© EAS, EDP Sciences, 2008