Population study of radio-quiet and thermally emitting isolated neutron stars

Search for very metal-poor stars based on carbon over-abundance

Abundance patterns among very metal-poor stars in the halo of the Galaxy: a statistical...

Detailed Spectral Synthesis of Accretions Disk Winds

The Correlation Between AGNs and Galaxy Clusters through the Optical and X-rays

Dust and Magnetic Field in Dense Regions of the Interstellar Medium

Chemical Composition of Metal Poor Stars in the Bulge

Differential abundances in metal-poor stars: impact in the study of the Galaxy, stellar...

Chemical Abundances of 47 Tuc using Integrated Spectra

A Spectroscopic Analysis of Accretion Disks in Cataclysmic Variables