News
Variability in the Orion nebula
Using images from the HST archive of the Ha and [OIII] l5007A emission lines that are 6.84 years apart, variability in the temperature and density of ionized...
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NewsVERY LOW MASS STARS, BROWN DWARFS AND GIANT PLANETS.Se ha descubierto un compañero de unas 14 M Jup situada a 670 UA de UscoCTIO108, una enana marrón de 60 M Jup perteneciente a la joven asociación de Upper...
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NewsVery Metal-poor Stars in the Outer Galactic Bulge Found by the APOGEE Survey.Despite its importance for understanding the nature of early stellar generations and for constraining Galactic bulge formation models, at present little is...
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NewsVisible and near-infrared observations of asteroid 2012 DA14 during its closest approach of February 15, 2013.Near-Earth asteroid 2012 DA 14 made its closest approach on February 15, 2013, when it passed at a distance of 27,700 km from the Earth’s surface. It was the...
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NewsWhich galaxies host bars and disks? A study of the Coma Cluster.In this work we present a recent study of the bar fraction in the ComaCluster galaxies based on a sample of ~190 galaxies selected from theSloan Digital Sky ...
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NewsWindspeed readings at 200 mbar at the Canary Islands observatoriesWindspeed readings taken by satellite at a height of 200 mbar (some 12 km), which have been proposed as an indicator of the observation quality of a site, give...
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NewsWithin galaxy variations in the chemical composition are responsible for the fundamental relationThe so-called "fundamental metallicity relation" (FMR) has been known for almost 10 years, and it states that galaxies of the same stellar mass but larger star...
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NewsYoung stars found in the oldest and most massive galaxies in the UniverseElliptical and lenticular galaxies (collectively called early-type galaxies) are the oldest and most massive galaxies in the Universe. These galaxies were built...