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A reanalysis of the luminosities of clusters of galaxies in the EMSS sample with 0.3 < z < 0.6

S. C. Ellis·L. R. Jones
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Abstract

The X-ray luminosities of the Einstein Extended Medium Sensitivity Survey (EMSS) clusters of galaxies with redshifts 0.3 250 kpc (the constant value assumed in the EMSS), the new luminosities are 2.2 +/- 0.15 times the previous measurements. The X-ray luminosity function (XLF) at 0.3<z<0.6 is recalculated and is found to be consistent with the local XLF. The constraints on the updated properties of the 0.3<z<0.6 EMSS sample, including a comparison with the number of clusters predicted from local XLFs, indicate that the space density of luminous, massive clusters has either not evolved or has increased by a small factor ~2 since z=0.4. The implications of this result are discussed in terms of constraints on the cosmological parameter Omega_0.

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S. C. Ellis, L. R. Jones. 2001-10-30. A reanalysis of the luminosities of clusters of galaxies in the EMSS sample with 0.3 < z < 0.6. https://doi.org/10.1046/j.1365-8711.2002.05092.x

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