We present a study focusing on the nature of compact groups through the study of their elliptical galaxies. We determine central velocity dispersions (σo) for...

We report recent results from the photometric follow-up study we are conducting in the context of the SAURON project. We use ground-based MDM V -band and...

The global properties of early-type galaxies are fairly well described through a linear relation (the Fundamental Plane, FP [2],[3]) in the space defined by...

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How will quasar studies be pursued in the near future? Starting from a summary of past achievement, we ask questions on expected instrumental and computational...

The general solution for the birth function B(m,t) of stars, derived by Casuso et al. (1989) was used to obtain a first-order analytical approximation to this...

The Gaia-ESO Public Spectroscopic Survey has begun and will obtain high quality spectroscopy of some 100000 Milky Way stars, in the field and in open clusters...

As part of the Gaia-ESO Survey (GES), a number of clusters will be observed that were chosen specifically for their massive-star content. We report on the...

Measurements of lithium in stars of different galactic populations such as young open clusters (Alpa Per, Pleiades, Praesepe, Coma, Hyades), very young stellar...