265 citations · 5.1k across the 125 of their papers we have counts for
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Simulations of AGN feedback in galaxy clusters and groups: impact on gas fractions and the Lx-T scaling relation
Ewald Puchwein, Debora Sijacki, Volker Springel
Recently, rapid observational and theoretical progress has established that black holes (BHs) play a decisive role in the formation and evolution of individual galaxies as well as…
Probing the dynamical state of galaxy clusters
Ewald Puchwein, Matthias Bartelmann
We show how hydrostatic equilibrium in galaxy clusters can be quantitatively probed combining X-ray, SZ, and gravitational-lensing data. Our previously published method for recover…
The impact of gas physics on strong cluster lensing
Ewald Puchwein, Matthias Bartelmann, Klaus Dolag +1
Previous studies of strong gravitational lensing by galaxy clusters neglected the potential impact of the intracluster gas. Here, we compare simulations of strong cluster lensing i…
Nearly Minimal Magnetogenesis
Tomislav Prokopec, Ewald Puchwein
We propose a new mechanism for magnetic field generation from inflation, by which strong magnetic fields can be generated on cosmological scales. These fields may be observable by…
Photon mass generation during inflation: de Sitter invariant case
Tomislav Prokopec, Ewald Puchwein
We calculate the one-loop vacuum polarization tensor of scalar electrodynamics in a locally de Sitter space-time, endowed with a nearly minimally coupled, light scalar field. We sh…