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arXiv 1998-09-15 2 views

The Impact of AXAF & XMM on Measurements of Omega₀ from Cluster Abundances

Romer, A. Kathy

Original · EN

Two major X-ray satellites, AXAF & XMM, will be launched in 1998/1999. Both satellites have spectral and imaging capabilities, and are several times more sensitive than either ROSAT or ASCA. AXAF & XMM will yield significant scientific returns in many fields of astrophysics. We concentrate here on how AXAF & XMM will improve constraints on the density parameter, Omega₀, via measurements of the cluster abundance at high redshift.

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