Sunyaev-zel'dovich cluster profiles measured with the South Pole telescope

T. Plagge, B. A. Benson, P. A R Ade, K. A. Aird, L. E. Bleem, J. E. Carlstrom, C. L. Chang, H. M. Cho, T. M. Crawford, A. T. Crites, T. De Haan, M. A. Dobbs, E. M. George, N. R. Hall, N. W. Halverson, G. P. Holder, W. L. Holzapfel, J. D. Hrubes, M. Joy, R. KeislerL. Knox, A. T. Lee, E. M. Leitch, M. Lueker, Daniel P Marrone, J. J. McMahon, J. Mehl, S. S. Meyer, J. J. Mohr, T. E. Montroy, S. Padin, C. Pryke, C. L. Reichardt, J. E. Ruhl, K. K. Schaffer, L. Shaw, E. Shirokoff, H. G. Spieler, B. Stalder, Z. Staniszewski, A. A. Stark, K. Vanderlinde, J. D. Vieira, R. Williamson, O. Zahn

Research output: Contribution to journalArticle

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Abstract

We present Sunyaev-Zel'dovich (SZ) measurements of 15 massive X-ray-selected galaxy clusters obtained with the South Pole Telescope (SPT). The SZ cluster signals are measured at 150 GHz, and concurrent 220GHz data are used to reduce astrophysical contamination. Radial profiles are computed using a technique that takes into account the effects of the beams and filtering. In several clusters, significant SZ decrements are detected out to a substantial fraction of the virial radius. The profiles are fit to the β-model and to a generalized Navarro-Frenk-White (NFW) pressure profile, and are scaled and stacked to probe their average behavior. We find model parameters that are consistent with previous studies: β = 0.86 and r core/r 500 = 0.20 for the β-model, and (αn, βn, γn, c 500) = (1.0, 5.5, 0.5, 1.0) for the generalized NFW model. Both models fit the SPT data comparably well, and both are consistent with the average SZ profile out to beyond r 500. The integrated Compton-y parameter Y SZ is computed for each cluster using both model-dependent and model-independent techniques, and the results are compared to X-ray estimates of cluster parameters. We find that Y SZ scales with YX and gas mass with low scatter. Since these observables have been found to scale with total mass, our results point to a tight mass-observable relation for the SPT cluster survey.

Original languageEnglish (US)
Pages (from-to)1118-1135
Number of pages18
JournalAstrophysical Journal
Volume716
Issue number2
DOIs
StatePublished - 2010
Externally publishedYes

Fingerprint

poles
telescopes
profiles
astrophysics
contamination
x rays
probe
galaxies
radii
probes
estimates
gases
gas
parameter

Keywords

  • Cosmic background radiation
  • Cosmology: observations
  • Galaxies: clusters: general
  • Galaxies: clusters: intracluster medium

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Plagge, T., Benson, B. A., Ade, P. A. R., Aird, K. A., Bleem, L. E., Carlstrom, J. E., ... Zahn, O. (2010). Sunyaev-zel'dovich cluster profiles measured with the South Pole telescope. Astrophysical Journal, 716(2), 1118-1135. https://doi.org/10.1088/0004-637X/716/2/1118

Sunyaev-zel'dovich cluster profiles measured with the South Pole telescope. / Plagge, T.; Benson, B. A.; Ade, P. A R; Aird, K. A.; Bleem, L. E.; Carlstrom, J. E.; Chang, C. L.; Cho, H. M.; Crawford, T. M.; Crites, A. T.; De Haan, T.; Dobbs, M. A.; George, E. M.; Hall, N. R.; Halverson, N. W.; Holder, G. P.; Holzapfel, W. L.; Hrubes, J. D.; Joy, M.; Keisler, R.; Knox, L.; Lee, A. T.; Leitch, E. M.; Lueker, M.; Marrone, Daniel P; McMahon, J. J.; Mehl, J.; Meyer, S. S.; Mohr, J. J.; Montroy, T. E.; Padin, S.; Pryke, C.; Reichardt, C. L.; Ruhl, J. E.; Schaffer, K. K.; Shaw, L.; Shirokoff, E.; Spieler, H. G.; Stalder, B.; Staniszewski, Z.; Stark, A. A.; Vanderlinde, K.; Vieira, J. D.; Williamson, R.; Zahn, O.

In: Astrophysical Journal, Vol. 716, No. 2, 2010, p. 1118-1135.

Research output: Contribution to journalArticle

Plagge, T, Benson, BA, Ade, PAR, Aird, KA, Bleem, LE, Carlstrom, JE, Chang, CL, Cho, HM, Crawford, TM, Crites, AT, De Haan, T, Dobbs, MA, George, EM, Hall, NR, Halverson, NW, Holder, GP, Holzapfel, WL, Hrubes, JD, Joy, M, Keisler, R, Knox, L, Lee, AT, Leitch, EM, Lueker, M, Marrone, DP, McMahon, JJ, Mehl, J, Meyer, SS, Mohr, JJ, Montroy, TE, Padin, S, Pryke, C, Reichardt, CL, Ruhl, JE, Schaffer, KK, Shaw, L, Shirokoff, E, Spieler, HG, Stalder, B, Staniszewski, Z, Stark, AA, Vanderlinde, K, Vieira, JD, Williamson, R & Zahn, O 2010, 'Sunyaev-zel'dovich cluster profiles measured with the South Pole telescope', Astrophysical Journal, vol. 716, no. 2, pp. 1118-1135. https://doi.org/10.1088/0004-637X/716/2/1118
Plagge T, Benson BA, Ade PAR, Aird KA, Bleem LE, Carlstrom JE et al. Sunyaev-zel'dovich cluster profiles measured with the South Pole telescope. Astrophysical Journal. 2010;716(2):1118-1135. https://doi.org/10.1088/0004-637X/716/2/1118
Plagge, T. ; Benson, B. A. ; Ade, P. A R ; Aird, K. A. ; Bleem, L. E. ; Carlstrom, J. E. ; Chang, C. L. ; Cho, H. M. ; Crawford, T. M. ; Crites, A. T. ; De Haan, T. ; Dobbs, M. A. ; George, E. M. ; Hall, N. R. ; Halverson, N. W. ; Holder, G. P. ; Holzapfel, W. L. ; Hrubes, J. D. ; Joy, M. ; Keisler, R. ; Knox, L. ; Lee, A. T. ; Leitch, E. M. ; Lueker, M. ; Marrone, Daniel P ; McMahon, J. J. ; Mehl, J. ; Meyer, S. S. ; Mohr, J. J. ; Montroy, T. E. ; Padin, S. ; Pryke, C. ; Reichardt, C. L. ; Ruhl, J. E. ; Schaffer, K. K. ; Shaw, L. ; Shirokoff, E. ; Spieler, H. G. ; Stalder, B. ; Staniszewski, Z. ; Stark, A. A. ; Vanderlinde, K. ; Vieira, J. D. ; Williamson, R. ; Zahn, O. / Sunyaev-zel'dovich cluster profiles measured with the South Pole telescope. In: Astrophysical Journal. 2010 ; Vol. 716, No. 2. pp. 1118-1135.
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abstract = "We present Sunyaev-Zel'dovich (SZ) measurements of 15 massive X-ray-selected galaxy clusters obtained with the South Pole Telescope (SPT). The SZ cluster signals are measured at 150 GHz, and concurrent 220GHz data are used to reduce astrophysical contamination. Radial profiles are computed using a technique that takes into account the effects of the beams and filtering. In several clusters, significant SZ decrements are detected out to a substantial fraction of the virial radius. The profiles are fit to the β-model and to a generalized Navarro-Frenk-White (NFW) pressure profile, and are scaled and stacked to probe their average behavior. We find model parameters that are consistent with previous studies: β = 0.86 and r core/r 500 = 0.20 for the β-model, and (αn, βn, γn, c 500) = (1.0, 5.5, 0.5, 1.0) for the generalized NFW model. Both models fit the SPT data comparably well, and both are consistent with the average SZ profile out to beyond r 500. The integrated Compton-y parameter Y SZ is computed for each cluster using both model-dependent and model-independent techniques, and the results are compared to X-ray estimates of cluster parameters. We find that Y SZ scales with YX and gas mass with low scatter. Since these observables have been found to scale with total mass, our results point to a tight mass-observable relation for the SPT cluster survey.",
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T1 - Sunyaev-zel'dovich cluster profiles measured with the South Pole telescope

AU - Plagge, T.

AU - Benson, B. A.

AU - Ade, P. A R

AU - Aird, K. A.

AU - Bleem, L. E.

AU - Carlstrom, J. E.

AU - Chang, C. L.

AU - Cho, H. M.

AU - Crawford, T. M.

AU - Crites, A. T.

AU - De Haan, T.

AU - Dobbs, M. A.

AU - George, E. M.

AU - Hall, N. R.

AU - Halverson, N. W.

AU - Holder, G. P.

AU - Holzapfel, W. L.

AU - Hrubes, J. D.

AU - Joy, M.

AU - Keisler, R.

AU - Knox, L.

AU - Lee, A. T.

AU - Leitch, E. M.

AU - Lueker, M.

AU - Marrone, Daniel P

AU - McMahon, J. J.

AU - Mehl, J.

AU - Meyer, S. S.

AU - Mohr, J. J.

AU - Montroy, T. E.

AU - Padin, S.

AU - Pryke, C.

AU - Reichardt, C. L.

AU - Ruhl, J. E.

AU - Schaffer, K. K.

AU - Shaw, L.

AU - Shirokoff, E.

AU - Spieler, H. G.

AU - Stalder, B.

AU - Staniszewski, Z.

AU - Stark, A. A.

AU - Vanderlinde, K.

AU - Vieira, J. D.

AU - Williamson, R.

AU - Zahn, O.

PY - 2010

Y1 - 2010

N2 - We present Sunyaev-Zel'dovich (SZ) measurements of 15 massive X-ray-selected galaxy clusters obtained with the South Pole Telescope (SPT). The SZ cluster signals are measured at 150 GHz, and concurrent 220GHz data are used to reduce astrophysical contamination. Radial profiles are computed using a technique that takes into account the effects of the beams and filtering. In several clusters, significant SZ decrements are detected out to a substantial fraction of the virial radius. The profiles are fit to the β-model and to a generalized Navarro-Frenk-White (NFW) pressure profile, and are scaled and stacked to probe their average behavior. We find model parameters that are consistent with previous studies: β = 0.86 and r core/r 500 = 0.20 for the β-model, and (αn, βn, γn, c 500) = (1.0, 5.5, 0.5, 1.0) for the generalized NFW model. Both models fit the SPT data comparably well, and both are consistent with the average SZ profile out to beyond r 500. The integrated Compton-y parameter Y SZ is computed for each cluster using both model-dependent and model-independent techniques, and the results are compared to X-ray estimates of cluster parameters. We find that Y SZ scales with YX and gas mass with low scatter. Since these observables have been found to scale with total mass, our results point to a tight mass-observable relation for the SPT cluster survey.

AB - We present Sunyaev-Zel'dovich (SZ) measurements of 15 massive X-ray-selected galaxy clusters obtained with the South Pole Telescope (SPT). The SZ cluster signals are measured at 150 GHz, and concurrent 220GHz data are used to reduce astrophysical contamination. Radial profiles are computed using a technique that takes into account the effects of the beams and filtering. In several clusters, significant SZ decrements are detected out to a substantial fraction of the virial radius. The profiles are fit to the β-model and to a generalized Navarro-Frenk-White (NFW) pressure profile, and are scaled and stacked to probe their average behavior. We find model parameters that are consistent with previous studies: β = 0.86 and r core/r 500 = 0.20 for the β-model, and (αn, βn, γn, c 500) = (1.0, 5.5, 0.5, 1.0) for the generalized NFW model. Both models fit the SPT data comparably well, and both are consistent with the average SZ profile out to beyond r 500. The integrated Compton-y parameter Y SZ is computed for each cluster using both model-dependent and model-independent techniques, and the results are compared to X-ray estimates of cluster parameters. We find that Y SZ scales with YX and gas mass with low scatter. Since these observables have been found to scale with total mass, our results point to a tight mass-observable relation for the SPT cluster survey.

KW - Cosmic background radiation

KW - Cosmology: observations

KW - Galaxies: clusters: general

KW - Galaxies: clusters: intracluster medium

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