960 citations · 4.5k across the 26 of their papers we have counts for
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Measurement of the dark matter velocity anisotropy in galaxy clusters
Ole Host, Steen H. Hansen, Rocco Piffaretti +4
The internal dynamics of a dark matter structure may have the remarkable property that the local temperature in the structure depends on direction. This is parametrized by the velo…
Total mass biases in X-ray galaxy clusters
Rocco Piffaretti, Riccardo Valdarnini
The exploitation of clusters of galaxies as cosmological probes relies on accurate measurements of their total gravitating mass. X-ray observations provide a powerful means of prob…
Mass distribution in the most X-ray-luminous galaxy cluster RX J1347.5-1145 studied with XMM-Newton
Myriam Gitti, Rocco Piffaretti, Sabine Schindler
We report on the analysis of XMM-Newton observations of RX J1347.5-1145 (z=0.451), the most X-ray-luminous galaxy cluster. We present a detailed total and gas mass determination up…
Measuring the dark matter velocity anisotropy in galaxy clusters
Steen H. Hansen, Rocco Piffaretti
The Universe contains approximately 6 times more dark matter than normal baryonic matter, and a directly observed fundamental difference between dark matter and baryons would both…
Effervescent heating: constraints from nearby cooling flow clusters observed with XMM-Newton
Rocco Piffaretti, Jelle Kaastra
We have used deprojected radial density and temperature profiles of a sample of 16 nearby CF clusters observed with XMM-Newton to test whether the effervescent heating model can sa…
Temperature and entropy profiles of nearby cooling flow clusters observed with XMM-Newton
Rocco Piffaretti, Philippe Jetzer, Jelle Kaastra +1
We investigate temperature and entropy profiles of 13 nearby cooling flow clusters observed with the EPIC cameras of XMM-Newton. When normalized and scaled by the virial radius the…