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Gaia: Organisation and challenges for the data processing
F. Mignard, C. Bailer-Jones, U. Bastian +9
Gaia is an ambitious space astrometry mission of ESA with a main objective to map the sky in astrometry and photometry down to a magnitude 20 by the end of the next decade. While t…
Gaia First Look
S. Jordan, U. Bastian, H. Lenhardt +3
A complicated and ambitious space mission like Gaia needs a careful monitoring and evaluation of the functioning of all components of the satellite. This has to be performed on dif…
Astrometric limits set by surface structure, binarity, microlensing
U. Bastian, H. Hefele
We give an assessment of the significance of various known effects which may produce genuine fluctuations of star positions comparable to or larger than Gaia's measurement noise, a…
Weighing stellar - mass black holes with Gaia
B. Fuchs, U. Bastian
Stellar-mass black holes have been detected by radial-velocity observations in star/black hole binaries. These allow only the determination of the mass function. Tracking the astro…