The Evolution of the Galaxy Cluster Luminosity-Temperature Relation
Astrophysics
2009-11-07 v1
Abstract
We analyzed the luminosity-temperature (L-T) relation for 2 samples of galaxy clusters which have all been observed by the ASCA satellite. We used 32 high redshift clusters (0.3<z<0.6), 53 low redshift clusters (z<0.3), and also the combination of the low and high redshift datasets. We assumed a power law relation between the bolometric luminosity of the galaxy cluster and its integrated temperature and redshift (L_{bol,44}=C*T^alpha*(1+z)^A). The results are consistent, independent of cosmology, with previous estimates of LT found by other authors. We observed weak or zero evolution.
Cite
@article{arxiv.astro-ph/0208468,
title = {The Evolution of the Galaxy Cluster Luminosity-Temperature Relation},
author = {Megan C. Novicki and Manuela Sornig and J. Patrick Henry},
journal= {arXiv preprint arXiv:astro-ph/0208468},
year = {2009}
}
Comments
20 pages, Latex, 11 figures, GIF format