Comparison of pressure profiles of massive relaxed galaxy clusters using the Sunyaev-Zel'dovich and x-ray data

Massimiliano Bonamente, Nicole Hasler, Esra Bulbul, John E. Carlstrom, Thomas L. Culverhouse, Megan Gralla, Christopher Greer, David Hawkins, Ryan Hennessy, Marshall Joy, Jeffery Kolodziejczak, James W. Lamb, David Landry, Erik M. Leitch, Daniel P Marrone, Amber Miller, Tony Mroczkowski, Stephen Muchovej, Thomas Plagge, Clem PrykeMatthew Sharp, David Woody

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

We present the Sunyaev-Zel'dovich (SZ) effect observations of a sample of 25 massive relaxed galaxy clusters observed with the Sunyaev-Zel'dovich array (SZA), an eight-element interferometer that is part of the Combined Array for Research in Millimeter-wave Astronomy (CARMA). We performed an analysis of new SZA data and archival Chandra observations of this sample to investigate the integrated pressure-a proxy for cluster mass-determined from x-ray and SZ observations, two independent probes of the intra-cluster medium (ICM). This analysis makes use of a model for the ICM introduced by Bulbul (2010 Astrophys. J. 720 1038) which can be applied simultaneously to the SZ and x-ray data. With this model, we estimated the pressure profile for each cluster using a joint analysis of the SZ and x-ray data, and using the SZ data alone. We found that the integrated pressures measured from the x-ray and SZ data are consistent. This conclusion is in agreement with recent results obtained using WMAP and Planck data, confirming that SZ and x-ray observations of massive clusters detect the same amount of thermal pressure from the ICM. To test for possible biases introduced by our choice of model, we also fitted the SZ data using the universal pressure profile proposed by Arnaud (2010 Astron. Astrophys. 517 A92) and found consistency between the two models out to r500 in the pressure profiles and integrated pressures.

Original languageEnglish (US)
Article number025010
JournalNew Journal of Physics
Volume14
DOIs
StatePublished - Feb 2012

Fingerprint

galaxies
profiles
x rays
astronomy
millimeter waves
interferometers
probes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Bonamente, M., Hasler, N., Bulbul, E., Carlstrom, J. E., Culverhouse, T. L., Gralla, M., ... Woody, D. (2012). Comparison of pressure profiles of massive relaxed galaxy clusters using the Sunyaev-Zel'dovich and x-ray data. New Journal of Physics, 14, [025010]. https://doi.org/10.1088/1367-2630/14/2/025010

Comparison of pressure profiles of massive relaxed galaxy clusters using the Sunyaev-Zel'dovich and x-ray data. / Bonamente, Massimiliano; Hasler, Nicole; Bulbul, Esra; Carlstrom, John E.; Culverhouse, Thomas L.; Gralla, Megan; Greer, Christopher; Hawkins, David; Hennessy, Ryan; Joy, Marshall; Kolodziejczak, Jeffery; Lamb, James W.; Landry, David; Leitch, Erik M.; Marrone, Daniel P; Miller, Amber; Mroczkowski, Tony; Muchovej, Stephen; Plagge, Thomas; Pryke, Clem; Sharp, Matthew; Woody, David.

In: New Journal of Physics, Vol. 14, 025010, 02.2012.

Research output: Contribution to journalArticle

Bonamente, M, Hasler, N, Bulbul, E, Carlstrom, JE, Culverhouse, TL, Gralla, M, Greer, C, Hawkins, D, Hennessy, R, Joy, M, Kolodziejczak, J, Lamb, JW, Landry, D, Leitch, EM, Marrone, DP, Miller, A, Mroczkowski, T, Muchovej, S, Plagge, T, Pryke, C, Sharp, M & Woody, D 2012, 'Comparison of pressure profiles of massive relaxed galaxy clusters using the Sunyaev-Zel'dovich and x-ray data', New Journal of Physics, vol. 14, 025010. https://doi.org/10.1088/1367-2630/14/2/025010
Bonamente, Massimiliano ; Hasler, Nicole ; Bulbul, Esra ; Carlstrom, John E. ; Culverhouse, Thomas L. ; Gralla, Megan ; Greer, Christopher ; Hawkins, David ; Hennessy, Ryan ; Joy, Marshall ; Kolodziejczak, Jeffery ; Lamb, James W. ; Landry, David ; Leitch, Erik M. ; Marrone, Daniel P ; Miller, Amber ; Mroczkowski, Tony ; Muchovej, Stephen ; Plagge, Thomas ; Pryke, Clem ; Sharp, Matthew ; Woody, David. / Comparison of pressure profiles of massive relaxed galaxy clusters using the Sunyaev-Zel'dovich and x-ray data. In: New Journal of Physics. 2012 ; Vol. 14.
@article{80d7273208ac4ef1a431142472884564,
title = "Comparison of pressure profiles of massive relaxed galaxy clusters using the Sunyaev-Zel'dovich and x-ray data",
abstract = "We present the Sunyaev-Zel'dovich (SZ) effect observations of a sample of 25 massive relaxed galaxy clusters observed with the Sunyaev-Zel'dovich array (SZA), an eight-element interferometer that is part of the Combined Array for Research in Millimeter-wave Astronomy (CARMA). We performed an analysis of new SZA data and archival Chandra observations of this sample to investigate the integrated pressure-a proxy for cluster mass-determined from x-ray and SZ observations, two independent probes of the intra-cluster medium (ICM). This analysis makes use of a model for the ICM introduced by Bulbul (2010 Astrophys. J. 720 1038) which can be applied simultaneously to the SZ and x-ray data. With this model, we estimated the pressure profile for each cluster using a joint analysis of the SZ and x-ray data, and using the SZ data alone. We found that the integrated pressures measured from the x-ray and SZ data are consistent. This conclusion is in agreement with recent results obtained using WMAP and Planck data, confirming that SZ and x-ray observations of massive clusters detect the same amount of thermal pressure from the ICM. To test for possible biases introduced by our choice of model, we also fitted the SZ data using the universal pressure profile proposed by Arnaud (2010 Astron. Astrophys. 517 A92) and found consistency between the two models out to r500 in the pressure profiles and integrated pressures.",
author = "Massimiliano Bonamente and Nicole Hasler and Esra Bulbul and Carlstrom, {John E.} and Culverhouse, {Thomas L.} and Megan Gralla and Christopher Greer and David Hawkins and Ryan Hennessy and Marshall Joy and Jeffery Kolodziejczak and Lamb, {James W.} and David Landry and Leitch, {Erik M.} and Marrone, {Daniel P} and Amber Miller and Tony Mroczkowski and Stephen Muchovej and Thomas Plagge and Clem Pryke and Matthew Sharp and David Woody",
year = "2012",
month = "2",
doi = "10.1088/1367-2630/14/2/025010",
language = "English (US)",
volume = "14",
journal = "New Journal of Physics",
issn = "1367-2630",
publisher = "IOP Publishing Ltd.",

}

TY - JOUR

T1 - Comparison of pressure profiles of massive relaxed galaxy clusters using the Sunyaev-Zel'dovich and x-ray data

AU - Bonamente, Massimiliano

AU - Hasler, Nicole

AU - Bulbul, Esra

AU - Carlstrom, John E.

AU - Culverhouse, Thomas L.

AU - Gralla, Megan

AU - Greer, Christopher

AU - Hawkins, David

AU - Hennessy, Ryan

AU - Joy, Marshall

AU - Kolodziejczak, Jeffery

AU - Lamb, James W.

AU - Landry, David

AU - Leitch, Erik M.

AU - Marrone, Daniel P

AU - Miller, Amber

AU - Mroczkowski, Tony

AU - Muchovej, Stephen

AU - Plagge, Thomas

AU - Pryke, Clem

AU - Sharp, Matthew

AU - Woody, David

PY - 2012/2

Y1 - 2012/2

N2 - We present the Sunyaev-Zel'dovich (SZ) effect observations of a sample of 25 massive relaxed galaxy clusters observed with the Sunyaev-Zel'dovich array (SZA), an eight-element interferometer that is part of the Combined Array for Research in Millimeter-wave Astronomy (CARMA). We performed an analysis of new SZA data and archival Chandra observations of this sample to investigate the integrated pressure-a proxy for cluster mass-determined from x-ray and SZ observations, two independent probes of the intra-cluster medium (ICM). This analysis makes use of a model for the ICM introduced by Bulbul (2010 Astrophys. J. 720 1038) which can be applied simultaneously to the SZ and x-ray data. With this model, we estimated the pressure profile for each cluster using a joint analysis of the SZ and x-ray data, and using the SZ data alone. We found that the integrated pressures measured from the x-ray and SZ data are consistent. This conclusion is in agreement with recent results obtained using WMAP and Planck data, confirming that SZ and x-ray observations of massive clusters detect the same amount of thermal pressure from the ICM. To test for possible biases introduced by our choice of model, we also fitted the SZ data using the universal pressure profile proposed by Arnaud (2010 Astron. Astrophys. 517 A92) and found consistency between the two models out to r500 in the pressure profiles and integrated pressures.

AB - We present the Sunyaev-Zel'dovich (SZ) effect observations of a sample of 25 massive relaxed galaxy clusters observed with the Sunyaev-Zel'dovich array (SZA), an eight-element interferometer that is part of the Combined Array for Research in Millimeter-wave Astronomy (CARMA). We performed an analysis of new SZA data and archival Chandra observations of this sample to investigate the integrated pressure-a proxy for cluster mass-determined from x-ray and SZ observations, two independent probes of the intra-cluster medium (ICM). This analysis makes use of a model for the ICM introduced by Bulbul (2010 Astrophys. J. 720 1038) which can be applied simultaneously to the SZ and x-ray data. With this model, we estimated the pressure profile for each cluster using a joint analysis of the SZ and x-ray data, and using the SZ data alone. We found that the integrated pressures measured from the x-ray and SZ data are consistent. This conclusion is in agreement with recent results obtained using WMAP and Planck data, confirming that SZ and x-ray observations of massive clusters detect the same amount of thermal pressure from the ICM. To test for possible biases introduced by our choice of model, we also fitted the SZ data using the universal pressure profile proposed by Arnaud (2010 Astron. Astrophys. 517 A92) and found consistency between the two models out to r500 in the pressure profiles and integrated pressures.

UR - http://www.scopus.com/inward/record.url?scp=84857962017&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84857962017&partnerID=8YFLogxK

U2 - 10.1088/1367-2630/14/2/025010

DO - 10.1088/1367-2630/14/2/025010

M3 - Article

AN - SCOPUS:84857962017

VL - 14

JO - New Journal of Physics

JF - New Journal of Physics

SN - 1367-2630

M1 - 025010

ER -