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OATS-UNI/TS SEMINAR
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Speaker: Simon White (MPA, Germany)

Title: The gas content of dark matter halos as seen by Planck
Date: Wednesday, March 20th, 2013
Time: 11:30
Venue: Villa Bazzoni
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Abstract Scaling relations between the physical and observable properties of galaxy halos, groups and clusters are fundamental for understanding their formation and for using them to constrain cosmological parameters. I will use a new, very large simulation to explore how correlated scatter in scaling relations can affect inferences from large cluster samples, focussing specifically on discrepancies which have arisen in recent Planck studies of clusters. In addition, I will present new Planck data on the baryon content of dark halos which extend previous studies down to halo mases similar to that of M31.
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Contact: Gabriella De Lucia (OATS)