Mass-Temperature Relation of X-ray Clusters in Triaxial Halo

Details Mass-Temperature Relation of X-ray Clusters in Triaxial Halo Mass-Temperature Relation of X-ray Clusters in Triaxial Halo

Apr 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004chjaa...4..105y&link_type=abstract

Chinese Journal of Astronomy & Astrophysics, Vol. 4, p. 105-117

Astronomy and Astrophysics

Astrophysics

2

Cosmology: Theory, Galaxy: Cluster: General, Large-Scale Structure Of Universe

Scientific paper

We investigate the mass-temperature relation of clusters for both the spherical NFW halo model and a concentric triaxial halo model. We study the temperature and density distributions of both an isothermal and a polytropic intra-cluster gas in hydrostatic equilibrium. We find that both the uncertainties in the concentration parameter and in the eccentricities (in case of the triaxial halo) lead to a greater scatter in the emission-weighted temperature at a given halo mass for less massive clusters. This may be helpful when determining the intrinsic statistical error of the σ8 normalization of the linear power spectrum from cluster abundance.

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