Low-Energy X-Ray Emission from the Abell 2199 Cluster of Galaxies
/ Authors
/ Abstract
In a recent Letter, Berghöfer & Bowyer rediscussed the analysis of BeppoSAX LECS data of the cluster of galaxies Abell 2199 as presented by Kaastra et al., in particular the detection of a soft X-ray excess. Berghöfer & Bowyer stated that their analysis method is better suited and does not show evidence of a soft X-ray excess. Here we find it necessary to publish a rebuttal because it can be demonstrated that the method used by Berghöfer & Bowyer is oversimplified, leading to an erroneous result. As a consequence, their statement that our initial analysis is incorrect is invalid, and the detection of a soft X-ray excess in A2199 is still confirmed.
Journal: The Astrophysical Journal Letters
DOI: 10.1086/342209