By a large number of high-precision photoelectric photometry data obtained in three sites, making use of the method of Fourier Period Analysis, the multiple...

The blazar 3C 279, one of the brightest identified extragalactic objects in the gamma -ray sky, underwent a large (factor of ~10 in amplitude) flare in gamma...

We present a first study of truncation of the stellar disks of spiral galaxies in the near infrared. Observations of NGC 4013, NGC 4217, NGC 6504 and NGC 5981...

The ALHAMBRA survey aims to cover 4 deg2 using a system of 20 contiguous, equal width, medium-band filters spanning the range 3500 Å-9700 Å plus the standard...

We present optical and near-infrared (NIR) surface brightness and colour profiles, in bands ranging from U to K, for the disk and bulge components of a complete...

Context. Identifying very high-redshift galaxies is crucial for understanding the formation and evolution of galaxies. However, many questions still remain, and...

We present the first part of the first large and homogeneous CCD color-magnitude diagram (CMD) data base, comprising 52 nearby Galactic globular clusters (GGC)...

The data presented here concerns 39 clusters of southern hemisphere and 13 clusters of northern hemisphere. (4 data files).

In the (logR_e_, μ_e_) plane defined by the logarithm of the effective radius and the effective surface brightness, elliptical galaxies that are members of...