Speaker
Stefano Ettori
(INAF OA Bologna)
Description
The key tool to use galaxy clusters as astrophysical laboratories and cosmological probes is the knowledge of the distribution of the their gravitating and baryonic mass.
I'll discuss some of the limitations affecting the X-ray reconstruction of the gas and total mass profiles. I'll illustrate how the estimates of the gas mass fraction and of the mass concentration can be used as robust cosmological tests. I'll show how the use of generalized X-ray scaling relations can help to reduce the scatter in reconstructing the total mass. I'll present some applications of the order statistical analysis on the galaxy cluster mass and redshift distribution to probe the theoretical framework of the structure formation.
Primary author
Stefano Ettori
(INAF OA Bologna)
