Studying high redshift galaxy groups with the Athena Wide-Field-Imager
Abstract
In this contribution, we will discuss the potential of Athena to study high redshift galaxy groups (1<z<4). We have set-up a simulation chain to assess both the detection efficiency of such groups in Athena WFI observations and our ability to identify them as extended sources among the numerous active galactic nuclei (AGN) at similar fluxes. Our analysis also includes the determination of the physical properties of these galaxy groups (average gas temperature, luminosity). Based on these tools, we discuss the science achievable with such systems thanks to Athena and its dependance on the final instrumental set-up. In particular, we investigate the impact of different levels of contamination by AGNs and assumptions on the luminosity of the groups as a function of their mass.
- Publication:
-
41st COSPAR Scientific Assembly
- Pub Date:
- July 2016
- Bibcode:
- 2016cosp...41E1492P