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Article
The Galaxy Cluster Mass Scale and Its Impact on Cosmological Constraints from the Cluster Population
The total mass of a galaxy cluster is one of its most fundamental properties. Together with the redshift, the mass links observation and theory, allowing us to use the cluster population to test models of stru...
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Article
Scaling Relations for Galaxy Clusters: Properties and Evolution
Well-calibrated scaling relations between the observable properties and the total masses of clusters of galaxies are important for understanding the physical processes that give rise to these relations. They a...
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Chapter and Conference Paper
Determination of Cosmological Parameters using XMM-Newton Observations of the HIFLUGCS Cluster Sample
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Chapter and Conference Paper
Statistics of X-ray Observables of Cooling Core and Non-cooling Core Clusters of Galaxies
In this poster we study the segregation of Cooling Core (CC) and Non-Cooling Core (NCC) clusters in the LX–T, LX–M and M–T relation using the HIFLUGCS sample ([1]). A major goal in this study is to better unde...
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Chapter and Conference Paper
Studying the Nature of Dark Energy with Galaxy Clusters
We report on the status of our effort to constrain the nature of dark energy through the evolution of the cluster mass function. Chandra temperature profiles for 31 clusters from a local cluster sample are shown....
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Chapter and Conference Paper
Complex Physics in Cluster Cores: Showstopper for the Use of Clusters for Cosmology?
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Chapter and Conference Paper
Investigating the Central Regions of the HIFLUGCS Clusters with Chandra
We present a preliminary analysis of the Chandra follow up to the HIFLUGCS sample (Hudson et al, in prep). By plotting the central temperature profiles, normalized to the global cluster temperature, against the f...
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Chapter and Conference Paper
Studying the Nature of Dark Energy with Current and Future Instruments
Understanding the nature of dark energy is one of the most important quests in modern cosmology and fundamental physics. Observations of galaxy clusters at low and high redshifts can be used to place constrain...
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Chapter and Conference Paper
Probing the Large-Scale Structure with the REFLEX Cluster Survey
Clusters of galaxies detected in X-rays are ideal probes for the study of the large scale structure in the Universe. Based on the ROSAT All-Sky Survey we have conducted a large redshift survey as an ESO key pr...