Astrophysics Seminars

The standard Lambda-CDM cosmological model is successful at describing the distribution of matter at large scales but faces problems at galactic scales. Pundits blame for this the poorly understood or modeled baryonic physics, e.g., star formation...

We are planning to run a large program of cosmological large-scale structure surveys over the next decade. By probing more modes than the CMB, we hope to learn new aspects about dark energy, the origin of the universe or neutrinos. However, many of...

I will give a tour through a variety of results on how precision cosmological data can test for the consequences of a light scalar in the early universe, such as an axion or a curvaton. Observable consequences could include altered CMB peak...

While observations of extra-solar protoplanetary disks have been improving by leaps and bounds, they still cannot probe the early stages of planet formation. The best data we have for the sub-micron to cm phase of the planet formation process, which...

Internal stellar magnetic fields are inaccessible to direct observations and little is known about their amplitude, geometry and evolution. I will discuss how strong magnetic fields in the cores of red giant stars can be identified with...

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TITLE & ABSTRACT ADDED - Numerical simulations have played a crucial role in the development of modern cosmology and in the establishment of LCDM. In this talk, I will review the main results and the fundamental assumptions behind dark matter...