APPLICATION OF A SELF-SIMILAR PRESSURE PROFILE TO SUNYAEV–ZEL'DOVICH EFFECT DATA FROM GALAXY CLUSTERS

We investigate the utility of a new, self-similar pressure profile for fitting Sunyaev–Zel'dovich (SZ) effect observations of galaxy clusters. Current SZ imaging instruments–such as the Sunyaev–Zel'dovich Array (SZA)–are capable of probing clusters over a large range in a physical scale. A model is therefore required that can accurately describe a cluster's pressure profile over a broad range of radii from the core of the cluster out to a significant fraction of the virial radius. In the analysis presented here, we fit a radial pressure profile derived from simulations and detailed X-ray analysis of relaxed clusters to SZA observations of three clusters with exceptionally high-quality X-ray data: A1835, A1914, and CL J1226.9+3332. From the joint analysis of the SZ and X-ray data, we derive physical properties such as gas mass, total mass, gas fraction and the intrinsic, integrated Compton y-parameter. We find that parameters derived from the joint fit to the SZ and X-ray data agree well with a detailed, independent X-ray-only analysis of the same clusters. In particular, we find that, when combined with X-ray imaging data, this new pressure profile yields an independent electron radial temperature profile that is in good agreement with spectroscopic X-ray measurements.

[1]  J. Carlstrom,et al.  Scaling Relations from Sunyaev-Zel’dovich Effect and Chandra X-Ray Measurements of High-Redshift Galaxy Clusters , 2007, 0708.0815.

[2]  W. Forman,et al.  Images, Structural Properties, and Metal Abundances of Galaxy Clusters Observed with Chandra ACIS-I at 0.1 < z < 1.3 , 2007, astro-ph/0703156.

[3]  IoA,et al.  Improved constraints on dark energy from Chandra X-ray observations of the largest relaxed galaxy clusters , 2007, 0706.0033.

[4]  D. Nagai,et al.  Effects of Galaxy Formation on Thermodynamics of the Intracluster Medium , 2007, astro-ph/0703661.

[5]  Amber D. Miller,et al.  Observations of High-Redshift X-Ray Selected Clusters with the Sunyaev-Zel’dovich Array , 2006, astro-ph/0610115.

[6]  U. Birmingham,et al.  Deep XMM-Newton and Chandra Observations of Cl J1226.9+3332: A Detailed X-Ray Mass Analysis of a z = 0.89 Galaxy Cluster , 2006, astro-ph/0609690.

[7]  S. Borgani,et al.  Temperature profiles of a representative sample of nearby X-ray galaxy clusters , 2006, astro-ph/0609480.

[8]  Jean-Luc Starck,et al.  Astronomical Data Analysis , 2007 .

[9]  Adrian T. Lee,et al.  APEX-SZ first light and instrument status , 2006 .

[10]  B. Reid,et al.  Sunyaev-Zel'dovich Effect Signals in Cluster Models , 2006 .

[11]  K. Dawson,et al.  X-Ray and Sunyaev-Zel’dovich Effect Measurements of the Gas Mass Fraction in Galaxy Clusters , 2006, astro-ph/0604039.

[12]  B. Reid,et al.  SZE Signals in Cluster Models , 2006, astro-ph/0601133.

[13]  K. Dawson,et al.  Determination of the Cosmic Distance Scale from Sunyaev-Zel’dovich Effect and Chandra X-Ray Measurements of High-Redshift Galaxy Clusters , 2005, astro-ph/0512349.

[14]  D. Nagai,et al.  The Impact of Galaxy Formation on the Sunyaev-Zel'dovich Effect of Galaxy Clusters , 2005, astro-ph/0512208.

[15]  C. Jones,et al.  ERRATUM: “CHANDRA SAMPLE OF NEARBY RELAXED GALAXY CLUSTERS: MASS, GAS FRACTION, AND MASS–TEMPERATURE RELATION” (2006, ApJ, 640, 691) , 2005, astro-ph/0507092.

[16]  Jack O. Burns,et al.  Accepted to ApJ Letters Preprint typeset using L ATEX style emulateapj v. 6/22/04 THE INTEGRATED SUNYAEV-ZELDOVICH EFFECT AS THE SUPERIOR METHOD FOR MEASURING THE MASS OF CLUSTERS OF GALAXIES , 2005 .

[17]  M. Markevitch,et al.  Chandra Temperature Profiles for a Sample of Nearby Relaxed Galaxy Clusters , 2004, astro-ph/0412306.

[18]  Paul Scherrer Institut,et al.  Temperature and Entropy Profiles of Nearby Cooling Flow Clusters Observed with XMM-Newton and the Effervescent Heating Model , 2004, astro-ph/0412233.

[19]  Peter A. R. Ade,et al.  The South Pole Telescope , 2004, SPIE Astronomical Telescopes + Instrumentation.

[20]  Institute for Astronomy,et al.  An XMM-Newton observation of the massive, relaxed galaxy cluster ClJ1226.9+3332 at z=0.89 , 2004, astro-ph/0403521.

[21]  J. Carlstrom,et al.  Markov Chain Monte Carlo Joint Analysis of Chandra X-Ray Imaging Spectroscopy and Sunyaev-Zel'dovich Effect Data , 2004, astro-ph/0403016.

[22]  A. Kosowsky.  The Atacama Cosmology Telescope , 2003, astro-ph/0402234.

[23]  G. W. Pratt,et al.  The mass profile of A1413 observed with XMM-Newton: Implications for the M-T relation , 2002, astro-ph/0207315.

[24]  J. Weller,et al.  Constraining dark energy with Sunyaev-Zel'dovich cluster surveys. , 2001, Physical review letters.

[25]  J. Mohr,et al.  Determining the Cosmic Distance Scale from Interferometric Measurements of the Sunyaev-Zeldovich Effect , 2002, astro-ph/0205350.

[26]  D. Liedahl,et al.  Collisional Plasma Models with APEC/APED: Emission-Line Diagnostics of Hydrogen-like and Helium-like Ions , 2001, astro-ph/0106478.

[27]  J. Mohr,et al.  Galaxy Cluster Gas Mass Fractions from Sunyaev-Zeldovich Effect Measurements: Constraints on ΩM , 2000, astro-ph/0012067.

[28]  J. Jernigan,et al.  X-ray imaging spectroscopy of Abell 1835 , 2000, astro-ph/0010658.

[29]  J. Mohr,et al.  Constraints on Cosmological Parameters from Future Galaxy Cluster Surveys , 2000, astro-ph/0002336.

[30]  A. Edge,et al.  MACS: A Quest for the Most Massive Galaxy Clusters in the Universe , 2000, astro-ph/0009101.

[31]  J. Carlstrom,et al.  The Sunyaev-Zeldovich Effect in Abell 370 , 2000, astro-ph/0003085.

[32]  A. Liddle,et al.  Hydrodynamical simulations of the Sunyaev-Zel'dovich effect , 1999, astro-ph/9907224.

[33]  M. Steinmetz,et al.  The Santa Barbara Cluster Comparison Project: A Comparison of Cosmological Hydrodynamics Solutions , 1999, astro-ph/9906160.

[34]  S. Nozawa,et al.  Relativistic Corrections to the Sunyaev-Zeldovich Effect for Clusters of Galaxies. IV. Analytic Fitting Formula for the Numerical Results , 1999, astro-ph/9912008.

[35]  M. Markevitch,et al.  The Temperature Structure of 30 Nearby Clusters Observed with ASCA: Similarity of Temperature Profiles , 1997, astro-ph/9711289.

[36]  Sylvia Richardson,et al.  Markov Chain Monte Carlo in Practice , 1997 .

[37]  Richard L. White,et al.  A Catalog of 1.4 GHz Radio Sources from the FIRST Survey , 1997 .

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

[39]  E. Greisen,et al.  The NRAO VLA Sky Survey , 1996 .

[40]  S. White,et al.  The Correlation function of clusters of galaxies and the amplitude of mass fluctuations in the Universe , 1993, astro-ph/9602052.

[41]  G. Tilton,et al.  Geochim. cosmochim. acta , 1989 .

[42]  N. Grevesse,et al.  Abundances of the elements: Meteoritic and solar , 1989 .

[43]  C. Sarazin.  X-Ray Emission from Clusters of Galaxies , 1988 .

[44]  H. J. Rood,et al.  A Compilation of Redshifts and Velocity Dispersions for ACO Clusters , 1987 .

[45]  G. Swenson,et al.  Interferometry and Synthesis in Radio Astronomy , 1986 .

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

[47]  J. Whittier,et al.  To J. P. , 1910 .

[48]  October I.  Physical Review Letters , 2022 .