Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...20514705k&link_type=abstract
American Astronomical Society Meeting 205, #147.05; Bulletin of the American Astronomical Society, Vol. 36, p.1593
Astronomy and Astrophysics
Astronomy
Scientific paper
We present correlations between X-ray temperature, luminosity and mass for a sample of distant clusters with z ≥ 0.394 observed with XMM-Newton observatory. Fixing the slope in the L - T correlation at the local value ,α =2.64, we derived that the correlation scales as L ∝ (1+z){1.7 ± 0.3} Tα with z, which confirms that the L - T relation evolves with redshift. Making use of the temperature profiles we calibrated the M-T correlation. The resulting M - T correlation in the 2.0-10.0 keV energy band agrees with the self-similar prediction E(z)M ∝ T3/2. The corrected for E(z) normalization is consistent well with the one derived by Vikhlinin et. al. 2004 for local clusters.
Kotov O.
Vikhlinin Alexey
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