Research
I am currently addressing the issue of the cosmological bias between matter and galaxy distributions. Galaxies do not perfectly trace the distribution of the underlying dark matter, a phenomenon commonly referred to as "galaxy biasing". Its origin lies in the details of the galaxy formation process which is shaped by the interplay between complex hydrodynamical and radiative processes together with the dark- matter driven formation of the large-scale structure.Bias is already present at high redshift, in the linear phase of the perturbations growth. I am using a set of N-body simulations to test a model that describes this initial bias, both in the density and in the velocity field. In order to follow the coupled evolution of the perturbations in the matter and galaxy distribution, i.e. the evolution of the bias, up to today, I am using resummed perturbation theories, again comparing the results with the output of a N-body simulation.
For my work I use the software Mathematica for algebraic and numerical tasks, SuperMongo for results visualization and I write codes in C++.
My work is supported through the SFB-Transregio 33 "The Dark Universe" by the Deutsche Forschungsgemeinschaft (DFG) and a scholarship by the Bonn-Cologne Graduate School of Physics and Astronomy (BCGS).
Teaching
In the Sommersemester 2010 I have been a tutor for the examples classes of the Observational Cosmology lecture course, held by Prof. Dr. Cristiano Porciani and Dr. Kaustuv moni Basu.In the Wintersemester 2010/2011 I have been a tutor for the examples classes of the Cosmology lecture course, held by Prof. Dr. Peter Schneider and Prof. Dr. Cristiano Porciani.