August E. Evrard

TL;DR: In this article, the authors explore how the behavior of galaxy cluster scaling relations are affected by flux-limited selection biases and intrinsic covariance among observable properties, and derive expressions for low-order moments of the luminosity distribution at fixed temperature, and show that the slope and scatter of the L-T relation observed in shallow X-ray fluxlimited samples is sensitive to the assumed L−T correlation coefficient.

TL;DR: In this article, the authors extend previous studies of this apparent paradox using numerical simulations of two extreme merger cases, one is a high Mach number (above 2.5) satellite merger similar to the "bullet cluster" and the other a merger of nearly equal mass progenitors.

TL;DR: In this article, the first group-and cluster-scale strong gravitational lensing systems were found in Dark Energy Survey data and confirmed using spectroscopic follow-up of 21 candidates using the Gemini Multiobject Spectrograph at the Gemini South telescope and the Inamori-Magellan Areal Camera and Spectrogram at the Magellan/Baade telescope.

TL;DR: In this paper, a bursty hydrodynamic variability model was used to detect a binary supermassive black hole (BSBH) in the optical light curves of a redshift 1.53 quasar, SDSS J025214.7.

TL;DR: In this article, the authors perform an analysis of the Dark Energy Survey (DES) Science Verification (SV) cosmic shear measurements, now extended to smaller scales, and using the Mead et al. (2015) halo model to account for baryonic feedback.