Speaker
Description
The Cold Dark Matter model for structure formation is currently the most successful at reproducing many observations, but it remains largely untested in the non-linear sub-galactic regime. A clear prediction of this model is that a significant number of low-mass haloes should populate any galaxy and its line of sight. As most of these objects are expected to be completely dark, strong gravitational lensing provides a unique channel to detect them and determine the properties of dark matter by constraining the halo-mass function at the low-mass end.
In this talk, I will present the latest observational constraints on dark matter from lensing and discuss the challenges in deriving robust constraints. I will particularly focus on the main sources of systematic errors from both the observational and theoretical sides of the problem. I will then focus on the expected role of existing and upcoming observing facilities such as LOFAR, the SKA and the ngVLA in this field.
| What is your career stage? | Tenured scientist |
|---|---|
| Which telescopes do you use / are you affiliated with? | Global VLBI, LOFAR |
