Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.459..645t&link_type=abstract
In: Exploring the gamma-ray universe. Proceedings of the Fourth INTEGRAL Workshop, 4-8 September 2000, Alicante, Spain. Editor:
Astronomy and Astrophysics
Astronomy
1
Esa: Missions, Galaxy: Formation And Evolution
Scientific paper
The GAIA mission, candidate for the next generation ESA Cornerstone missions (launch 2009), will provide unprecedented positional and radial velocity measurements with the accuracy needed to produce a stereoscopic and kinematic census of about one billion stars in our Galaxy and the Local Group, all objects down to V = 20 mag. Astrometric data at 10 microarcsec level accuracy at V = 15 mag will ensure distances accurate to 10 per cent for stars as far as the Galactic Center. This data, combined with medium band photometry obtained by the same satellite, will provide accurate extinction and intrinsic luminosity for this huge amount of stars. Large numbers of galaxies, active galactic nuclei and quasars will be also surveyed by GAIA, making unique contributions to extragalactic astronomy. GAIA will be a natural complement to the scientific exploitation of the products derived from high energy missions like XMM and INTEGRAL.
Figueras F.
Jordi Carme
Luri Xavier
Masana Eduard
Torra Jordi
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