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OATS-UNI/TS SEMINAR
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Speaker: Veronica Biffi (SISSA, Trieste)

Title: Synthetic X-ray observations of simulated galaxy clusters
Date: Wednesday, April 24th, 2013
Time: 11:30
Venue: Villa Bazzoni
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Abstract: X-ray observations provide us with an increasingly detailed pictured of galaxy clusters, for which a clear interpretation of the underlying physical processes is very challenging. While hydrodynamical simulations can currently address many questions about the cluster dynamics and physics, it is vital to find a direct and faithful way to compare their results to real X-ray observations. By means of the X-ray virtual telescope PHOX we can generate mock X-ray observations out of hydrodynamical simulations of galaxy clusters. In this way, we can address a number of interesting issues, such as the reconstruction of the cluster temperature distribution via spectral analysis or the investigation of scaling relations among global observable properties, e.g. X-ray luminosity and temperature. Furthermore I will show an application of the simulator to obtain high-resolution spectra of clusters, such those achievable with upcoming X-ray missions as ASTRO-H or ATHENA, from which a tight constrain on the intra-cluster medium (ICM) non-thermal velocity can be derived.
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Contact: Stefano Borgani (OATS)