1. Introduction
2. Data
2.1. eRASS:1 cluster catalog
2.2. EMU pilot field
2.3. Construction of the sample
2.4. Properties of the sample
2.5. WISE colors
3. Analysis and Discussion
3.1. Linear size of the BCGs
3.2. BCG offset
3.3. Morphological parameters
3.4. Correlation of the radio and X-ray luminosity
3.5. Mechanical powers of the jet
3.6. Cooling time
3.7. Density profiles
3.8. Noteworthy clusters
4. Conclusions