High-dispersion long-slit spectra reveal several kinematically distinct components to the extended emission line gas in NGC 3516. The symmetry of the velocity...
The bistatic LGS scheme for sodium layer height characterization (based on the Teide Observatory experimental setup)
Laser Guide Stars -LGS- has been widely proposed to extend the domain of stable operation for adaptive optics systems in large telescopes. As LGS are formed in...
The blue supergiant 2MASS J20395358+4222505, a Rosetta stone in the realm of massive stars
2MASS J20395358+4222505 is a highly extincted (Av= 9.6 mag) early B-supergiant located in the nearest massive star forming region, Cyg-X, in the outskirts of...
We describe the boxy bulge, long stellar bar and elliptical ring of the Galaxy. This model has largely evolved from NIR survey work by many teams and differs...
The evolution of the morphology of C/1999 S4 (LINEAR) is examined from a series of images taken from shortly before the disruption of the nucleus until 10 days...
The Bright Galaxy Population of Five Medium Redshift Clusters. Quantitative Morphology.
Following the study already presented in our previous work, based on the Nordic Optical Telescope (NOT) sample, which consists on five clusters of galaxies...