Bibcode
Centurión, M.; Bonifacio, P.; Molaro, P.; Vladilo, G.
Referencia bibliográfica
Astrophysics and Space Science, v. 263, Issue 1/4, p. 79-82 (1998).
Fecha de publicación:
6
1998
Revista
Número de citas
0
Número de citas referidas
0
Descripción
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 abundances of refractory elements
are corrected by dust depletion ([Si/Fe]corr), the resulting
ratios do not resemble those observed in the Galactic metal-poor stars,
showing instead similarities with those ratios observed in dwarf
galaxies. These results challenge the idea that these absorbers are the
progenitors of the present-day spiral galaxies, and suggest an origin in
low-mass galaxies for the systems up to now investigated.