The X-Ray Size-Temperature Relation for Intermediate-Redshift Galaxy Clusters

We present the first measurements of the X-ray size-temperature (ST) relation in intermediate-redshift (z ~ 0.30) galaxy clusters. We interpret the local ST relation (z ~ 0.06) in terms of underlying scaling relations in the cluster dark matter properties, and then we use standard models for the redshift evolution of those dark matter properties to argue that the ST relation does not evolve with redshift. We then use ROSAT HRI observations of 11 clusters to examine the intermediate-redshift ST relation; for currently favored cosmological parameters, the intermediate-redshift ST relation is consistent with that of local clusters. Finally, we use the ST relation and our evolution model to measure angular diameter distances; with these 11 distances we evaluate constraints on ΩM and ΩΛ that are consistent with those derived from studies of Type Ia supernovae. The data rule out a model with ΩM = 1 and ΩΛ = 0 with 2.5 σ confidence. When limited to models where ΩM + ΩΛ = 1, these data are inconsistent with ΩM = 1 with 3 σ confidence.

[1]  S. White,et al.  A Universal Density Profile from Hierarchical Clustering , 1996, astro-ph/9611107.

[2]  Keith A. Arnaud,et al.  An X-ray flux-limited sample of clusters of galaxies : evidence for evolution of the luminosity function. , 1990 .

[3]  Barham W. Smith,et al.  Soft X-ray spectrum of a hot plasma. , 1977 .

[4]  A. Evrard,et al.  A Simulation of the Intracluster Medium With Feedback from Cluster Galaxies , 1993, astro-ph/9309050.

[5]  G. Bryan,et al.  Statistical Properties of X-Ray Clusters: Analytic and Numerical Comparisons , 1997, astro-ph/9710107.

[7]  C. Jones,et al.  The structure of clusters of galaxies observed with Einstein , 1984 .

[8]  John E. Carlstrom,et al.  Expectations for an Interferometric Sunyaev-Zeldovich Effect Survey for Galaxy Clusters , 2000 .

[9]  August E. Evrard,et al.  AN X-RAY SIZE-TEMPERATURE RELATION FOR GALAXY CLUSTERS: OBSERVATION AND SIMULATION , 1997 .

[10]  Richard F. Mushotzky,et al.  Observational Tests of the Mass-Temperature Relation for Galaxy Clusters , 1998, astro-ph/9902151.

[11]  Measuring the universal deceleration using angular diameter distances to clusters of galaxies , 1996, astro-ph/9610090.

[12]  R. Ellis,et al.  Measurements of $\Omega$ and $\Lambda$ from 42 high redshift supernovae , 1998, astro-ph/9812133.

[13]  W. Forman,et al.  A catalog of intracluster gas temperatures , 1993 .

[14]  Maxim Markevitch,et al.  The LX-T Relation and Temperature Function for Nearby Clusters Revisited , 1998, astro-ph/9802059.

[15]  A. Edge,et al.  Cooling flows and the X-ray luminosity–temperature relation for clusters , 1994 .

[16]  The Intracluster Gas Fraction in X-ray Clusters : Constraints on the Clustered Mass Density , 1997, astro-ph/9701148.

[17]  Richard Mushotzky,et al.  Lack of Evolution in the Iron Abundance in Clusters of Galaxies and Implications for the Global Star Formation Rate at High Redshift , 1997, astro-ph/9702149.

[18]  George Lake,et al.  Cold collapse and the core catastrophe , 1999 .

[19]  J. Mohr,et al.  An X-ray method for detecting substructure in galaxy clusters - Application to Perseus, A2256, Centaurus, Coma, and Sersic 40/6 , 1993 .

[20]  J. Navarro,et al.  35 9 v 1 2 2 O ct 1 99 8 The Imprint of Galaxy Formation on X-ray Clusters , 2008 .

[21]  Monique Arnaud,et al.  The LX—T relation and intracluster gas fractions of X-ray clusters , 1999 .

[22]  R. Carlberg,et al.  X-Ray Mass Estimates at z ~ 0.3 for the Canadian Network for Observational Cosmology Cluster Sample , 1999 .

[23]  Gus Evrard,et al.  Properties of the Intracluster Medium in an Ensemble of Nearby Galaxy Clusters , 1999, astro-ph/9901281.

[24]  J. Mohr,et al.  Cosmological Constraints from Observed Cluster X-Ray Morphologies , 1995, astro-ph/9501011.

[25]  M. Phillips,et al.  The High-Z Supernova Search: Measuring Cosmic Deceleration and Global Curvature of the Universe Using Type Ia Supernovae , 1998, astro-ph/9805200.

[26]  August E. Evrard,et al.  Mass estimates of X-ray clusters , 1996 .

[27]  J. Bergeron,et al.  The VLT Opening Symposium , 1999 .

[28]  K. Rines,et al.  Constraining q0 with Cluster Gas Mass Fractions: A Feasibility Study , 1998, astro-ph/9809336.

[29]  D. Fabricant,et al.  X-ray measurements of the mass of M 87. , 1980 .

[30]  W. Forman,et al.  Cosmological implications of ROSAT observations of groups and clusters of galaxies , 1995 .

[31]  I. Jørgensen,et al.  The Fundamental Plane for cluster E and S0 galaxies , 1995, astro-ph/9511139.

[32]  R. Carlberg,et al.  The CNOC Cluster Redshift Survey Catalogs. I. Observational Strategy and Data Reduction Techniques , 1996 .