Klaus Dolag

TL;DR: In this article, the efficiency of numerically simulated galaxy clusters for producing strong gravitational lensing events in different dark-energy cosmologies with constant and time-variable equation of state and compare it with ''standard'' $\Lambda$CDM and OCDM models.

TL;DR: In this article, the authors present an approach to model frequent scattering based on an effective drag force, which they have implemented into the N-body code Gadget-3. In a range of test problems, they demonstrate that their implementation accurately models frequent scattering.

TL;DR: In this paper, the authors demonstrate that the X-ray Integral Field Unit (X-IFU) instrument onboard the next-generation European Xray observatory Athena is capable of recovering the input chemical enrichment models at both low and high redshifts, while statistically excluding more than 99.5% of the other tested combinations of models.

TL;DR: For over four decades, synchrotron-radiating sources have played a series of pathfinding roles in the study of galaxy clusters and large-scale structure as discussed by the authors, and their cosmic rays and magnetic fields often play important dynamic and thermodynamic roles.

TL;DR: In this paper , the authors present a cosmological analysis of the fourth data release of the Kilo Degree Survey based on the density split statistics, which measures the mean shear around regions classified according to foreground densities.