We report on the results of a coordinated observation of Mrk 421 during outburst using data from XMM-Newton and ground-based TeV data from two Imaging Air...

The TeV blazars Markarian 421 and Markarian 501 are excellent laboratories for studying the physical processes within the jets of active galactic nuclei due to...

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The near-Earth asteroids (NEAs) represent excellent scientific opportunities to study the dynamical and physical properties of small bodies of the Solar System...

We present a rapid timing analysis of VLT (optical) and RXTE data of the Galactic black hole GX 339-4 in the low/hard state in June 2007, soon after emerging...

This work presents the first quiet Sun spectropolarimetric observations carried out in the visible and the infrared (IR) simultaneously. The Fe I lines at 6301...

We present visible and near infrared observations of the blazar OJ287 taken during a flare of nearly two magnitudes amplitude in V, which peaked on December 6th...

We present data for single and binary massive stars, both from new analyses (Trapezium stars, O stars in NGC 6611, and the massive binary system V478 Cyg) and...

We have computed new stellar evolution models that include the effects of rotation and magnetic torques under different hypothesis. The goal is to test if a...