The double background subtraction method proposed in this study is a promising approach for disentangling AGN emissions from the Perseus cluster’s X-ray background. However, I wonder about the method’s reliability compared to existing spectral fitting techniques. Could the authors provide additional context on whether similar results were achieved using alternative methods, even if indirectly inferred?
Given the dynamic nature of the Perseus cluster, with radial temperature and velocity variations, how robust is this approach when applied to regions with higher gradients or turbulence?