Different efforts have been devoted to improve the original version of Gaia methodology. The more relevant is the official extension of Gaia, exploiting the organizational abstractions to provide clear guidelines for the analysis and design of complex and open multiagent systems. However, now a day a successful design methodology should include some other strategic factors like the support of a...

This paper introduces the application of the multicriteria method Promethee II to the selection of a portfolio manager. Such application involves four main steps: (1) defining the list of potential actions or solutions to the problem; (2) defining the list of relevant criteria; (3) evaluating the performance of each action based on each criterion; and (4) aggregating these performances with the...

The astrometry mission Gaia of the European Space Agency (ESA) will scan the entire sky several times over 5 years, down to a visual apparent magnitude of 20. Apart for its primary targets, the stars, that will be mapped during the course of the mission, Gaia is expected to observe more than 300,000 asteroids (Mignard et al., 2007). Although our census of asteroids is about complete at a such m...

A general review is given of Mira and some other cool variables stars, concentrating on those aspects on which GAIA, and more particularly GAIA spectroscopy and radial velocities, will have a major impact.

GAIA astrometric mission of ESA will be very efficient in discovering binary and multiple stars with any orbital period, from minutes to millions of years. Main parameters of the revised mission design are presented. Next we estimate the fraction of binary stars discovered by means of astrometry, photometry and on-board spectroscopy. Finally we summarize observations that confirm the ability to...

The goal of this bachelorproject is to determine the absolute fluxes of stars for use as calibrators in the photometric reduction of data from the GAIA (Global Astrometric Interferometer for Astrophysics) astrometric satellite, which will fly in at the end of 2011.[1] This project involves observing candidate flux standard stars using the spectrograph on the Calar Alto 2.2m telescope in Sierra ...

In this report, we discuss Tree Music, an interactive computer music installation created using GAIA (Graphical Audio Interface Application), a new open-source interface for controlling the RTcmix synthesis and effects processing engine. Tree Music, commissioned by the University of Virginia Art Museum, used a wireless camera with a wide-angle lens to capture motion and occlusion data from exhi...

Gaia is a cornerstone European Space Agency astrometry space mission and a successor to the Hipparcos mission. Gaia will observe the whole sky for 5 years, providing a serendipitous opportunity for the discovery of large numbers of transient and anomalous events, e.g. supernovae, novae and microlensing events, gamma-ray burst afterglows, fallback supernovae, as well as theoretical or unexpected...

The GAIA framework prototype, described herein, explores the possibilities and problems that arise when combining versioning and open hypermedia paradigms. It will be argued that it by adding versioning as a separate service in the hypermedia architecture – is possible to build consistent versioning of both documents and hyperstructure. This approach eases some of the problems inherent in separ...

GAIA is the “super-Hipparcos” survey satellite selected as a Cornerstone 6 mission by the European Space Agency. GAIA can measure microlensing by the brightening of source stars. For the broad G band photometer, the all-sky source-averaged photometric optical depth is ∼ 10−7. There are ∼ 1300 photometric microlensing events for which GAIA will measure at least one datapoint on the amplified lig...