Current Projects as Principle Investigator:

- Heisenberg Research Group "X-Ray Astronomy, Galaxy Clusters, Cosmology"
- BMWi Project "X-Ray Luminosity--Mass Relation and AGN Feedback in Galaxy Groups"
- Projects B6 and B7 in Transregio "The Dark Universe"
- BMBF Project "LoCuSS: Combined XMM-Newton and Subaru Study of Galaxy Cluster Scaling Relations"
- Schwerpunkt Project "Cooling Cores, Supermassive Black Holes, and Galaxy Masses"

Completed Projects as Principle Investigator:

- Emmy Noether Research Group "Dark Energy"
- BMBF Project "Cluster Mass Determination with HST and XMM-Newton"