Research areas of our working group at ITP

Exhaustive overview of our daily work (Girls' Day 2021)

Gravitational Lensing

Strong lensing by galaxy clusters
- formation of arcs in galaxy clusters
- statistics of arcs and cosmological implications
- diagnostics of galaxy clusters using arcs
Weak lensing by galaxy clusters
- detection of dark-matter halos using weak lensing
- dependence of weak lensing on mass profiles
- cosmological implications of weak lensing
- statistics of weak-lensing effects
Strong lensing by galaxies
- effects of spiral disks on multiple imaging

Hot gas in galaxy clusters
- diagnostics of clusters from their X-ray emission
- thermal and kinetic Sunyaev-Zel'dovich effects
- joint cluster analyses using multi-band data
Magnetic fields in galaxy clusters
- origin and evolution of cluster magnetic fields
- non-thermal emission due to magnetic fields
- Faraday rotation

Structure formation
- non-equilibrium, microscopic, statistical field theory for classical particles
  [video abstract of the publication NJP 19 (2017) 083001]
  [video on kinetic field theory in cosmology, produced and hosted by Latest Thinking]
- growth of dark-matter halos in different cosmological models
- diagnostics for halo properties
Dark matter and dark energy
- matter distribution in dark halos
- implications of dark energy for structure growth
- observational consequences of dark-energy models
Cosmic microwave background (CMB)
- Gravitational lensing of the CMB
- Secondary anisotropies and source detection

Verantwortlich: Matthias Bartelmann