The challenge raised by Gaia

Optimising GAIA: How do we meet the science challenge?

GAIA has been approved to provide the data needed to quantify the formation and evolution of the Milky Way Galaxy, and its near neighbours. That requires study of all four key Galactic stellar populations: Bulge, Halo, Thick Disk, Thin Disk. The complex analysis methodologies required to model GAIA kinematic data are being developed, and in the interim applied to the relatively simple cases of ...

The Gaia mission Pulsating stars with Gaia

Gaia is a cornerstone mission of the European Space Agency (ESA) selected in 2000, with a target launch date of 2011. The Gaia mission will perform a survey of about 1 billion sources brighter than V = 20. Its goal is to provide astrometry leading to parallaxes, proper-motions and positions. Astrometric data are complemented by multicolour photometry and a spectroscopic instrument (up to V = 17...

Statistical issues raised by the

Gaia: Understanding the Galaxy

The GAIA Observatory, ESA's Cornerstone 6 mission, addresses the origin and evolution of our Galaxy, and a host of other scientific challenges. GAIA will provide unprecedented positional and radial velocity measurements with the accuracies needed to produce a stereoscopic and kinematic census of about one billion stars in our Galaxy and throughout the Local Group, about one per cent of the Gala...

Raised Challenges by NVRAM

New memory technologies impact various fields of computer science but it is hard to evaluate, as specialists of one scientific domain, what are these fields and how important is this impact. In this talk, I will present this problematics and I'll introduce the various themes that we will talk about during the workshop. Also, I'll give some examples of existing works that let me think that emerg...