The role of pre-Gaia positional data in determining binary orbits with Gaia data†
Abstract
Simulations show that incorporating the pre-Gaia positional data into the Gaia astrometric data can significantly improve the efficiency of determining binary orbits, especially for those binaries with periods from 8 to 25 years.
- Publication:
-
A Giant Step: from Milli- to Micro-arcsecond Astrometry
- Pub Date:
- July 2008
- DOI:
- Bibcode:
- 2008IAUS..248...16R
- Keywords:
-
- stars: fundamental parameters;
- binaries: general;
- methods: data analysis