06/10/2004 – Auditório Principal Bloco G – IAG/USP
Dr. Bodo Ziegler
Universitaetssternwarte Goettingen – Alemanha
Título/Title: Kinematic evolution of spiral galaxies in the field and in clusters
Resumo/Abstract:
| With the availability of big telescopes and powerful instruments it is now feasible to study galaxy evolution quantitatively out to high redshifts. We exploit these possibilities by measuring the internal kinematics of galaxies out to redshift of 1. With the aid of scaling relations like the Tully-Fisher relation of disk galaxies we robustly quantify not only the luminosity but in particular the mass evolution of galaxies. This enables us to give very tight constraints on galaxy formation models that give clear predictions on the mass evolution of Dark Matter halos. We explore the kinematics not only for field galaxies but also galaxies in clusters where additional environmental effects influence the evolution of a galaxy. |
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