Evidence for triggered star formation linking three generations of stars is difficult to assemble, as it requires convincingly associating evolved massive stars with H II regions that, in turn, would need to present signs of active star formation. We present observational evidence for triggered star formation relating three generations of stars in

The Romanesque architecture in the Iberian Peninsula was introduced through the Way of Saint James, as one of the main routes of pilgrimage of the XI century. This building fever would let us verify the ecclesiastical canons on the orientations of the Christian churches, as one of their main characteristics is definitely their eastwards orientation

The stellar velocity distribution function in the solar vicinity is reexamined using data from the Sloan Digital Sky Survey Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey's DR16 and Gaia DR2. By exploiting APOGEE's ability to chemically discriminate with great reliability the thin-disk, thick-disk, and (accreted) halo

A robust and extended characterization of the point spread function (PSF) is crucial to extract the photometric information produced by deep imaging surveys. Here we present the extended PSFs of the Sloan Digital Sky Survey (SDSS), extending over 8 arcmin in radius for all filters (u, g, r, i, z). We illustrate with an example how the PSF models

Dwarf ellipticals are the most common galaxy type in cluster environments; however, the challenges associated with their observation mean that their formation mechanisms are still poorly understood. To address this, we present deep integral field observations of a sample of 31 low-mass (10 7.5 < M ⋆ < 10 9.5 M ☉) early-type galaxies in the Fornax

The measurement of distances to individual stars with Gaia is enabling the construction of deep colour-magnitude diagrams (CMD) for large volumes within our Galaxy in absolute magnitudes. Comparison with models (CMD-fitting) has allowed us to obtain the most detailed star formation history (SFH) of the bubble of 2 kpc around the Sun. Surprisingly