Contributed Talk - Splinter eROSITA
The eROSITA view of the Abell 3391/95 field: Cluster Outskirts and Filaments
A. Veronica, T. Reiprich, F. Pacaud, E. Bulbul, N. Ota, M. Ramos-Ceja, A. Liu, V. Biffi, K. Migkas, J. Aschersleben, N. Clerc, K. Dolag, T. Erben, E. Gatuzz, V. Ghirardini, J. Kerp, M. Klein, T. Liu, J. Sanders, C. Spinelli
The A3391/95 system is a complex galaxy cluster system that was observed by eROSITA during its Performance Verification (PV) phase in October 2019. These eROSITA PV data provide by far the largest and deepest X-ray large-scale overview of this system. An area of ~15 square degrees of the field is covered and a ~15 Mpc continuous soft emission is discovered. This filament connects several galaxy clusters and groups in the field of view, including the A3391, A3395N/S, the Northern Clump, and the Little Southern Clump (LSC). In this study, we report the analysis results, namely, the gas properties, of the outskirts (R500 < r < R200) and the detected inter-cluster filaments (> R200) regions.