Chandra X-Ray Observatory

Joint XMM/Chandra Accepted Cycle 18 Targets and Abstracts

Proposal NumberSubject CategoryPI NameChandra TimeTitle
18800004CLUSTERS OF GALAXIESMonique Arnaud100.00ksProbing the extreme mass peaks at z>0.7


Proposal Number: 18800004

Title: Probing the extreme mass peaks at z>0.7

PI Name: Monique Arnaud

We propose to obtain spatially resolved X-ray spectroscopy of a sample of 20 massive (M>5e+14M_sun) clusters detected blindly by Planck in the red shift range 0.7<z<0.9. Using for the first time a statistically significant sample in this extreme-mass, high-redshift regime, we will extend our study of the pressure, entropy and mass profiles, their dispersion, and the fundamental scalings between YSZ, YX and M500, by more than a Gyr of lookback time. The sample constitutes an important probe of the physics of gravitational collapse on cluster scales, and will be of large legacy value for the cosmological exploitation of the Planck sample.

Smithsonian Institute Smithsonian Institute

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