The first extension of the Sloan Digital Sky Survey (SDSS-II), which included the program SEGUE: Sloan Extension for Galactic Understanding and Exploration...
The luminosity function of galaxies in the Hercules cluster
We have imaged ˜ 1 deg2 in the V-band in the direction of the Hercules cluster (Abell 2151). The data are used to compute, for the first time, the luminosity...
The luminosity functions of an homogeneous sample of 50 young nearby open clusters
Open clusters are groups of coeval stars sharing properties such as distance and metallicity, and they are key to understanding stellar evolution. We shed light...
The M(17)SW molecular source - Internally or externally heated?
From a measurement of the J = 3 - 2 rotational emission line of hydrogen isocyanide, and a literature value for that J = 1 - 0 line (Snell, 1979), the...
The Magellanic Clouds Field Population Chemical Enrichment History
We report the results of our project devoted to study the chemical enrichment history of the field population in the Magellanic Clouds using Ca 0 triplet...
The MAGIC Telescope and the Observation of Gamma Ray Bursts
The MAGIC telescope, with many technological innovations which allow the telescope to have a low energy threshold and a very fast slewing time, could be one of...
The MAGIC telescope for gamma-ray astronomy above 30 GeV
The MAGIC telescope, presently at its commissioning phase, will become fully operative by the end of 2003. Placed at the Roque de los Muchachos Observatory (ORM...