[ -- Invited ]
Studies of Dark Energy with Chandra
Alexey Vikhlinin, SAO
I will review Chandra's contribution to studies of Dark
Energy. Observable effects of Dark Energy fall into two broad classes,
its effect on the expansion rate as a function of time, and on the rate
of growth of cosmic structures; Chandra has detected and measured both
through observations of galaxy clusters. Combination with other cosmological
datasets leads to 5\% constraints on the Dark Energy equation of state,
and limits possible deviations of gravity on large scales from General
Relativity.