Dr. Tobias Goerdt
Institut für Astrophysik
Universität Wien
1180 Wien
Österreich
Email: tobias.goerdt@univie.ac.at
Phone: +43 1 427 751 898
Research
My dominant research interests lie in the field of cosmological galaxy formation.
I am largely interested in state-of-the-art cosmological, Eulerian hydrodynamical and N-body simulations. Most of my work concerns cold flows within hot haloes and their observable features. I am also interested in various effects of dynamical friction.
My recent work has dealt with the co-planarity of Andromeda's satellite galaxies a relic structure in today's universe of the cold gas streams that fed galaxies in massive haloes at high redshift. These massive galaxies formed stars at surprising intensities in the universe ten billion years ago. Those are "stream-fed galaxies", growing via steady, narrow, cold gas streams that penetrate effectively through the shock-heated media of massive dark-matter haloes. Other actual research was about the characteristics of metal line absorption as well as Lyman alpha emission of those streams. Current interests include the accretion rates of cold streams and their clumpiness, their spacial alignments with respect to the galactic discs as well as mass inflow scaling relations and the limits of their validity.