Rotation curves of spiral galaxies reveal a physical phenomenon that has been seen to lack a satisfactory scientific explanation: velocities of stars far from the nucleus are high and approximately constant. In the context ...

Aims. The purpose of this work is to study the properties of the spatial distribution of the young population in three nearby galaxiesin order to better understand the first stages of star formation.Methods. We used ACS/HST ...

Las agrupaciones estelares jóvenes han sido objetos reconocidos desde hace tiempo como laboratorios ideales para la investigación astrofísica. Ellas constituyen una muestra significativa de estrellas que comparten un origen ...