We present new results concerning the radial gradients (Fe, alpha, s- and r-process elements) across the Galactic thin disk. We use young (t<300 Myr, classical...

In this talk we first make a review on gravitational lensing and microlensing as an introduction, followed by a discussion on the most recent work of our group...

Majority of galaxies reside in groups and clusters where they are understood to evolve also through galaxy-galaxy interactions. Multiple mergers at the core of...

En esta charla describo un modelo electoral Bayesiano para agregar sondeos electorales y estimar la intención de voto para el 26J.

By the time, in 1937, the Zwicky measured the velocity dispersion of the Coma cluster, astronomers somehow got acquainted with the idea that the universe is...

MOSAIC is the proposed visible and near-infrared multi-object spectrograph (MOS) for ESO’s forthcoming ELT. The instrument is currently in the initial project...

High Mas X-ray Binary Systems are important sources of information for many astrophysical fields of research. They are composed by a compact object (black hole...

Since the early 50' of last century the study of Horizontal Branch stars in Galactic GCs has been of pivotal relevance since the core He-burning stage is an...

In recent years accurate photometric and spectroscopic observations have provided sound evidence that Galactic Globular Clusters can not be longer considered...