On the Nature of Damped LYα Systems: Clues from Determinations of Elemental Abundance Ratios
We present a study of the [α/Fe-peak] and [N/α] abundance ratios in Damped Lyα (DLA) systems. By using ratios of undepleted elements ([S/Zn] and [N/S]) or when...
On the Nature of Dwarf Galaxies in the Interacting Group HCG 31
We have analysed the morphology, kinematics, colors and chemical composition of the ionized gas of the different objects belonging to the interacting compact...
O Vz stars are defined as those O-type stars displaying HeII 4686 absorption line stronger than other He line in the blue spectral region. These stars have been...
O Vz stars are defined as those O-type stars displaying He II 4686 absorption line stronger than other He line in the blue spectral region. These stars have...
On the nature of small planets orbiting low-mass stars
Planets smaller than Neptune are ubiquitous in the Galaxy and those around M stars constitute the bulk of warm and temperate worlds amenable for detailed...
On the nature of starburst galaxies at low-z and their connection with interactions
We investigate the properties of starbursts and the influence of galaxy-galaxy interactions on star formation (SF) in a sample of 1341 objects (distances < 40...
Although the occasional malfunction of rotating polarizing elements at the beginning of the SOHO mission, which led to its stop, GOLF instrument has been...