We present the scheme developed for the quick analysis and data quality checks on the MAGIC Cherenkov Telescope at La Palma. Due to its low energy threshold MAGIC acquires data of atmospheric showers at a rate of more than 200Hz, which translates in up to 700GB per night. A fast On-Site data reduction is needed to detect hardware problems and in

We present results on the cosmic evolution of the outskirts of disk galaxies. In particular we focus on galaxies with stellar disk truncations. Using UDF, GOODS and SDSS data we show how the position of the break evolves with time since z ˜ 1. Our findings agree with an evolution on the radial position of the break by a factor of 1.3 ± 0.14 in the

Este artículo presenta algunas reflexiones en torno a la popularización de la Ciencia, desarrolladas a lo largo de mi trayectoria profesional, un camino inacabado desde la intuición al oficio. Tras revisar las señas de identidad de la divulgación científica, se exponen ideas, experiencias y recursos, cribados por la práctica y su posterior análisis

Extremely Large Telescopes are very challenging concerning their Adaptive Optics requirements. Their diameters, the specifications demanded by the science for which they are being designed for, and the planned use of Extreme Adaptive Optics systems, imply a huge increment in the number of degrees of freedom in the deformable mirrors. It is

The Canarias InfraRed Camera Experiment (CIRCE) is a near-infrared (1-2.5 μm) instrument for the Gran Telescopio Canarias (GTC) 10.4 m telescope. CIRCE has an off-axis aspheric all-reflective optical system that offers both excellent throughput and image quality. Observational modes include broad/narrow band imaging and low-resolution spectroscopy

We present an astrometric catalogue of positions and proper motions derived from the Carte du Ciel plates of the San Fernando zone, photographic material with a mean epoch 1901.4 with a limiting magnitude V˜15.Digitization has been made using a conventional flatbed scanner. Special techniques have been developed to handle the combination of plate