Volume 478, Number 2, February I 2008
|Page(s)||615 - 658|
|Section||Online catalogs and data|
|Published online||09 October 2007|
A catalog of galaxy clusters observed by XMM-Newton*
Code 662, NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA e-mail: firstname.lastname@example.org
2 Code 662, NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA e-mail: email@example.com
3 Henry A. Rowland Department of Physics and Astronomy, The Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218, USA e-mail: firstname.lastname@example.org
4 Department of Physics, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA
5 CRESST and the Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, MD 20771, USA e-mail: email@example.com
Accepted: 3 October 2007
Aims.We present a uniform catalog of the images and radial profiles of the temperature, abundance, and brightness for 70 clusters of galaxies observed by XMM-Newton.
Methods.We use a new “first principles” approach to the modeling and removal of the background components; the quiescent particle background, the cosmic diffuse emission, the soft proton contamination, and the solar wind charge exchange emission. Each of the background components demonstrate significant spectral variability, several have spatial distributions that are not described by the photon vignetting function, and all except for the cosmic diffuse emission are temporally variable. Because these backgrounds strongly affect the analysis of low surface brightness objects, we provide a detailed description our methods of identification, characterization, and removal.
Results.We have applied these methods to a large collection of XMM-Newton observations of clusters of galaxies and present the resulting catalog. We find significant systematic differences between the Chandra and XMM-Newton temperatures.
Key words: X-rays: galaxies: clusters / methods: data analysis
© ESO, 2008
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.