The chemical evolution of the Universe over the past ten billion years
A research, led by the IAA, analyzes twenty thousand galaxies from the zCOSMOS survey. The most distant galaxies have less proportion of metals than those in the local universe, which confirms the hierarchical model of galaxy formation
A research, led by the IAA, analyzes twenty thousand galaxies from the zCOSMOS survey. The most distant galaxies have less proportion of metals than those in the local universe, which confirms the hierarchical model of galaxy formation
11/12/2012
Local Universe (2 Mass Survey).
Galaxies of distant universe (Hubble Ultra Deep Field).
Reference:
E. Pérez-Montero et al. The cosmic evolution of oxygen and nitrogen abundances in star-forming galaxies over the past 10 Gyr. Astronomy & Astrophysics(en prensa) http://arxiv.org/abs/1210.0334"
Press release:
Contact:
Instituto de Astrofísica de Andalucía (IAA-CSIC)
Unidad de Divulgación y Comunicación
Silbia López de Lacalle - sll[arroba]iaa.es - 958230532
http://www.iaa.es
http://divulgacion.iaa.es
