Downstream depolarization in the Sausage relic: a 1-4 GHz Very Large Array study

no code implementations • 12 Feb 2021 • G. Di Gennaro, R. J. van Weeren, L. Rudnick, M. Hoeft, M. Brüggen, D. Ryu, H. J. A. Röttgering, W. Forman, A. Stroe, T. W. Shimwell, R. P. Kraft, C. Jones, D. N. Hoang

For the first time in a radio relic, we observe a decreasing polarization fraction in the downstream region.

Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics

The Abell 3391/95 galaxy cluster system: A 15 Mpc intergalactic medium emission filament, a warm gas bridge, infalling matter clumps, and (re-) accelerated plasma discovered by combining SRG/eROSITA data with ASKAP/EMU and DECam data

no code implementations • 15 Dec 2020 • T. H. Reiprich, A. Veronica, F. Pacaud, M. E. Ramos-Ceja, N. Ota, J. Sanders, M. Kara, T. Erben, M. Klein, J. Erler, J. Kerp, D. N. Hoang, M. Brüggen, J. Marvil, L. Rudnick, V. Biffi, K. Dolag, J. Aschersleben, K. Basu, H. Brunner, E. Bulbul, K. Dennerl, D. Eckert, M. Freyberg, E. Gatuzz, V. Ghirardini, F. Käfer, A. Merloni, K. Migkas, K. Nandra, P. Predehl, J. Robrade, M. Salvato, B. Whelan, A. Diaz-Ocampo, D. Hernandez-Lang, A. Zenteno, M. J. I. Brown, J. D. Collier, J. M. Diego, A. M. Hopkins, A. Kapinska, B. Koribalski, T. Mroczkowski, R. P. Norris, A. O'Brien, E. Vardoulaki

We used dedicated SRG/eROSITA X-ray, ASKAP/EMU radio, and DECam optical observations of a 15 sq. deg region around the interacting galaxy cluster system A3391/95 to study the warm-hot gas in cluster outskirts and filaments, the surrounding large-scale structure and its formation process.

Cosmology and Nongalactic Astrophysics High Energy Astrophysical Phenomena