The Gaia Project - technique, performance and status
arXiv:0811.2345 · doi:10.1002/asna.200811065
Abstract
Gaia is a satellite mission of the ESA, aiming at absolute astrometric measurements of about one billion stars (all stars down to 20th magnitude, with unprecedented accuracy. Additionally, magnitudes and colors will be obtained for all these stars, while radial-velocities and spectral properties will be determined only for bright objects (V<17.5). At 15th magnitude Gaia aims at an angular accuracy of 20 microarcseconds (muas). This goal can only be reached if the geometry of the telescopes, the detectors, and the pointing of Gaia at each moment ("attitude") can be inferred from the Gaia measurements itself with muas accuracy.
six pages, invited talk at the conference "Galactic & Stellar Dynamics in the era of high resolution surveys", Strasbourg 16-20 March 2008
References in corpus (1)
Cited by in corpus (19)
- A new determination of the local dark matter density from the kinematics of K dwarfs
- Strong Deflection Limit Lensing Effects in the Minimal Geometric Deformation and Casadio-Fabbri-Mazzacurati Solutions
- Detailed Abundances of Two Very Metal-Poor Stars in Dwarf Galaxies
- High Precision Astrometry with MICADO at the European Extremely Large Telescope
- Limits on the local dark matter density
- The Ultraviolet Spectrum and Physical Properties of the Mass Donor Star in HD 226868 = Cygnus X-1
- Supervised Ensemble Classification of Kepler Variable Stars
- From Clock Synchronization to Dark Matter as a Relativistic Inertial Effect
- Statistical-likelihood Exo-Planetary Habitability Index (SEPHI)
- Observable Predictions from Perturber-coupled High-eccentricity Tidal Migration of Warm Jupiters
- Component masses of young, wide, non-magnetic white dwarf binaries in the SDSS DR7
- Implementing the Gaia Astrometric Global Iterative Solution (AGIS) in Java
- Detection of Periodicity Based on Serial Dependence of Phase-Folded Data
- Dark Matter as a Relativistic Inertial Effect in Einstein Canonical Gravity?
- Global climate by Rossby number in the Solar system planets
- True Unicorns and False Positives: Simulated Probabilities of Dark Massive Companions to Bright Stars
- LISA Galactic Binaries in the Roman Galactic Bulge Time-Domain Survey
- Differential HBT Method for Binary Stars
- Hamiltonian ADM Gravity in Non-Harmonic Gauges with Well Defined Non-Euclidean 3-Spaces: How Much Darkness can be Explained as a Relativistic Inertial Effect?