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arxiv: astro-ph/9809198 · v1 · submitted 1998-09-15 · 🌌 astro-ph

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

classification 🌌 astro-ph
keywords axafwillclustermeasurementsomegasatellitesabundanceabundances
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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, Omega_0, via measurements of the cluster abundance at high redshift.

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