GAIA spectroscopic and radial velocity performancies are reviewed on the base of groundbased test observations and simulations. The prospects for accurate analysis of stellar atmospheres (temperature, gravity, chemical abundances, rotation, peculiarities) and precise radial velocities (single stars, binaries, pulsating stars) are colorful provided the spectral dispersion is high enough. A highe...

The performance expected from a galaxy survey to be carried out with GAIA, the GAIA Galaxy Survey, is outlined. From a statistical model of galaxy number density, size and surface brightness distribution, and from detailed numerical simulations based on real images, it is conservatively estimated that GAIA would be able to detect and observe about 3 million galaxies brighter than V ≃ 17 and to ...

We present the results of realistic end-to-end simulations of observations of nearby stars with the proposed global astrometry mission GAIA, recently recommended within the context of ESA's Horizon 2000 Plus long-term scientific program. We show that under realistic, if challenging, assumptions, GAIA will be capable of surveying the solar neighborhood within 100-200 pc for the astrometric signa...

Bruno Rosa, MD1 Pedro Moutinho-Ribeiro, MD2 José M. Pereira, MD3 Daniel Fonseca, MD4 Joanne Lopes, MD5 Isabel Amendoeira, MD5 José Cotter, MD1 1Department of Gastroenterology, Alto Ave Hospital Center, Guimarães, Portugal; 2Department of Gastroenterology, Arrábida Hospital, Vila Nova de Gaia, Portugal; 3Department of Radiology, São João University Hospital, Porto, Portugal; 4Department of Radio...

GAIA observations of eclipsing binary stars will have a large impact on stellar astrophysics. Accurate parameters, including absolute masses and sizes will be derived for ∼ 10 systems, orders of magnitude more than what has ever been done from the ground. Observations of 18 real systems in the GAIA-like mode as well as with devoted groundbased campaigns are used to assess binary recognition tec...

Two sets of grids of Kurucz ATLAS 9 model spectra are presented. The first one covers the GAIA spectral interval, while the second one which is still being computed covers the whole range from 2500 – 10500 Å. Both grids include parameters needed for realistic spectral simulation, e.g. stellar rotation and are computed at R = 20000 and lower spectral resolutions. They can be useful for preparati...

1Neurology Department, Vila Nova Gaia/Espinho Hospital Center, Vila Nova de Gaia, Portugal; 2Neuroradiology Department, São João Hospital Center, Oporto, Portugal; 3Faculty of Medicine, University of Oporto, São João Hospital Center, Oporto, Portugal. Correspondence: Ana Teresa Carvalho Postal; Alameda Prof. Hernâni Monteiro 4200-319; Oporto Portugal; E-mail: [email protected] Conflic...

An efficient Learning resource centre can be achieved with the help of a network of collaborating, coordinating and communicating software agents. Agent-oriented techniques represent an exciting new means of analysing, designing and building complex software systems. The designing of the interacting agents is done with the help of Gaia, extended for the multiagent systems. Gaia is a methodology...

Günümüzde “Girişimci Üniversite” kavramı ile sıkça karşılaşılmaktadır. Yenilikçilik, yaşamın her alanında olduğu gibi üniversitelerin içinde bölgeler için de giderek önemini artırmaktadır. Bu kapsamda girişimci ve yenilikçi üniversite kaynaklı girişimler, bilgi teknoloji transferinde toplumsal sorunların çözümünde önemli bir aracı konumunda bulunmaktadır. sebeple ülkemizdeki üniversitelerin; ye...