Low-Energy X-Ray Emission from the Abell 2199 Cluster of Galaxies
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.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- July 2002
- DOI:
- arXiv:
- arXiv:astro-ph/0206235
- Bibcode:
- 2002ApJ...574L...1K
- Keywords:
-
- Galaxies: Clusters: General;
- Galaxies: Clusters: Individual: Name: Abell 2199;
- X-Rays: Galaxies;
- Astrophysics
- E-Print:
- 6 pages, accepted for publication in The Astrophysical Journal, Letters