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Evolution of the cluster X-ray scaling relations since z>0.4

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arxiv astro-ph/0207445 v1 pith:EZXA23QY submitted 2002-07-21 astro-ph

classification astro-ph
keywords evolutionfixedluminositymassscalestemperatureclustercorrelations
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We derive correlations between X-ray temperature, luminosity, and gas mass for a sample of 22 distant, z>0.4, galaxy clusters observed with Chandra. We detect evolution in all three correlations between z>0.4 and the present epoch. In particular, in the Omega=0.3, Lambda=0.7 cosmology, the luminosity corresponding to a fixed temperature scales approximately as (1+z)**(1.5+-0.3); the gas mass for a fixed luminosity scales as (1+z)**(-1.8+-0.4); and the gas mass for a fixed temperature scales as (1+z)**(-0.5+-0.4) (all uncertainties are 90% confidence). We briefly discuss the implication of these results for cluster evolution models.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Average soft X-ray surface brightness profile of massive galaxy clusters in Magneticum simulations

    astro-ph.CO 2026-08 conditional novelty 6.0 of 10

    Magneticum simulations reproduce the eROSITA stacked soft X-ray surface brightness profile of massive clusters out to about 3 R500, with a central difference attributed to AGN feedback.

  2. New constraints on cosmic anisotropy from galaxy clusters using an improved dipole fitting method

    astro-ph.CO 2026-02 unverdicted novelty 5.0 of 10

    Galaxy cluster observations yield two preferred directions with cosmic anisotropy amplitude of about 5.3 times 10 to the minus 4 at roughly 1 sigma overall significance, though higher in the XMM-Newton subsample.

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