Mathematics – Logic
Scientific paper
May 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...192.3701t&link_type=abstract
American Astronomical Society, 192nd AAS Meeting, #37.01; Bulletin of the American Astronomical Society, Vol. 30, p.864
Mathematics
Logic
Scientific paper
The temperature of the galaxy cluster 1E0657-56 has been measured to be kT = 17.4 keV, which makes it the hottest known galaxy cluster. Very hot clusters are important for testing cosmological models because differences between models are strongly amplified at temperatures greater than 15 keV. We show that the expected number of clusters kT>17 keV in a volume bounded by a redshift z = 0.3 is N(kT>17, z <0.3) = 0.3 for Omega = 0.37 and N(kT>17, z <0.3) = 4 x 10(-6) for Omega = 1 for a cold dark matter (CDM) spectrum normalized to fit the cluster number density at 5.5 keV. The properties of other potential "killer clusters" and their impact on a broad range of cosmological models are discussed, and a strategy to search for them with AXAF is outlined.
David Laurence P.
Pen Ue-Li
Tucker Wallace H.
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