Gaia: Astrometric performance and current status of the project
Författare
Summary, in English
The scientific objectives of the Cain mission cover areas of galactic structure and evolution, stellar astrophysics, exoplanets, solar system physics, and fundamental physics. Astrometrically, its main contribution will be the determination of millions of absolute stellar parallaxes and the establishment of a very accurate, dense and faint non-rotating optical reference frame. With a planned launch in spring 2012, the project is in its advanced implementation phase. In parallel, preparations for the scientific data processing are well under way within the Cain Data Processing and Analysis Consortium. Final mission results are expected around 2021, but early releases of preliminary data, are expected. This review summarizes the main science goals and overall organisation of the project, the measurement principle and core astrometric solution, and provide an updated overview of the expected astrometric performance.
Avdelning/ar
Publiceringsår
2010
Språk
Engelska
Sidor
296-305
Publikation/Tidskrift/Serie
Relativity in Fundamental Astronomy: Dynamics, Reference Frames, and Data Analysis (IAU Symposium)
Volym
261
Dokumenttyp
Konferensbidrag
Förlag
Cambridge University Press
Ämne
- Astronomy, Astrophysics and Cosmology
Nyckelord
- reference systems
- astrometry
- surveys
- catalogs
- methods: data analysis
- space vehicles: instruments
- stars: distances
- stars: kinematics
Conference name
261st Symposium of the International-Astronomical-Union
Conference date
2009-04-27 - 2009-05-01
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1743-9221
- ISSN: 1743-9213