The Atacama Cosmology Telescope: Cosmology from galaxy clusters detected via the Sunyaev-Zel'dovich effect

Neelima Sehgal; Hy Trac; Viviana Acquaviva; Peter A.R. Ade; Paula Aguirre; Mandana Amiri; John W. Appel; L. Felipe Barrientos; Elia S. Battistelli; J. Richard Bond; Ben Brown; Bryce Burger; Jay Chervenak; Sudeep Das; Mark J. Devlin; Simon R. Dicker; W. Bertrand Doriese; Joanna Dunkley; Rolando Dünner; Thomas Essinger-Hileman; Ryan P. Fisher; Joseph W. Fowler; Amir Hajian; Mark Halpern; Matthew Hasselfield; Carlos Hernández-Monteagudo; Gene C. Hilton; Matt Hilton; Adam D. Hincks; Renée Hlozek; David Holtz; Kevin M. Huffenberger; David H. Hughes; John P. Hughes; Leopoldo Infante; Kent D. Irwin; Andrew Jones; Jean Baptiste Juin; Jeff Klein; Arthur Kosowsky; Judy M. Lau; Michele Limon; Yen Ting Lin; Robert H. Lupton; Tobias A. Marriage; Danica Marsden; Krista Martocci; Phil Mauskopf; Felipe Menanteau; Kavilan Moodley; Harvey Moseley; Calvin B. Netterfield; Michael D. Niemack; Michael R. Nolta; Lyman A. Page; Lucas Parker; Bruce Partridge; Beth Reid; Blake D. Sherwin; Jon Sievers; David N. Spergel; Suzanne T. Staggs; Daniel S. Swetz; Eric R. Switzer; Robert Thornton; Carole Tucker; Ryan Warne; Ed Wollack; Yue Zhao

doi:10.1088/0004-637X/732/1/44

The Atacama Cosmology Telescope: Cosmology from galaxy clusters detected via the Sunyaev-Zel'dovich effect

Neelima Sehgal, Hy Trac, Viviana Acquaviva, Peter A.R. Ade, Paula Aguirre, Mandana Amiri, John W. Appel, L. Felipe Barrientos, Elia S. Battistelli, J. Richard Bond, Ben Brown, Bryce Burger, Jay Chervenak, Sudeep Das, Mark J. Devlin, Simon R. Dicker, W. Bertrand Doriese, Joanna Dunkley, Rolando Dünner, Thomas Essinger-HilemanRyan P. Fisher, Joseph W. Fowler, Amir Hajian, Mark Halpern, Matthew Hasselfield, Carlos Hernández-Monteagudo, Gene C. Hilton, Matt Hilton, Adam D. Hincks, Renée Hlozek, David Holtz, Kevin M. Huffenberger, David H. Hughes, John P. Hughes, Leopoldo Infante, Kent D. Irwin, Andrew Jones, Jean Baptiste Juin, Jeff Klein, Arthur Kosowsky, Judy M. Lau, Michele Limon, Yen Ting Lin, Robert H. Lupton, Tobias A. Marriage, Danica Marsden, Krista Martocci, Phil Mauskopf, Felipe Menanteau, Kavilan Moodley, Harvey Moseley, Calvin B. Netterfield, Michael D. Niemack, Michael R. Nolta, Lyman A. Page, Lucas Parker, Bruce Partridge, Beth Reid, Blake D. Sherwin, Jon Sievers, David N. Spergel, Suzanne T. Staggs, Daniel S. Swetz, Eric R. Switzer, Robert Thornton, Carole Tucker, Ryan Warne, Ed Wollack, Yue Zhao

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141 Scopus citations

Abstract

We present constraints on cosmological parameters based on a sample of Sunyaev-Zel'dovich-selected (SZ-selected) galaxy clusters detected in a millimeter-wave survey by the Atacama Cosmology Telescope. The cluster sample used in this analysis consists of nine optically confirmed high-mass clusters comprising the high-significance end of the total cluster sample identified in 455 deg² of sky surveyed during 2008 at 148 GHz. We focus on the most massive systems to reduce the degeneracy between unknown cluster astrophysics and cosmology derived from SZ surveys. We describe the scaling relation between cluster mass and SZ signal with a four-parameter fit. Marginalizing over the values of the parameters in this fit with conservative priors gives σ₈ = 0.851 ± 0.115 and w = -1.14 ± 0.35 for a spatially flat wCDM cosmological model with Wilkinson Microwave Anisotropy Probe (WMAP) seven-year priors on cosmological parameters. This gives a modest improvement in statistical uncertainty over WMAP seven-year constraints alone. Fixing the scaling relation between the cluster mass and SZ signal to a fiducial relation obtained from numerical simulations and calibrated by X-ray observations, we find σ₈ = 0.821 ± 0.044 and w = -1.05 ± 0.20. These results are consistent with constraints from WMAP7 plus baryon acoustic oscillations plus Type Ia supernova which give σ₈ = 0.802 ± 0.038 and w = -0.98 ± 0.053. A stacking analysis of the clusters in this sample compared to clusters simulated assuming the fiducial model also shows good agreement. These results suggest that, given the sample of clusters used here, both the astrophysics of massive clusters and the cosmological parameters derived from them are broadly consistent with current models.

Original language	English (US)
Article number	44
Journal	Astrophysical Journal
Volume	732
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/732/1/44
State	Published - May 1 2011
Externally published	Yes

Keywords

cosmic background radiation
cosmology: observations
galaxies: clusters: general

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1088/0004-637X/732/1/44

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Sehgal, N., Trac, H., Acquaviva, V., Ade, P. A. R., Aguirre, P., Amiri, M., Appel, J. W., Barrientos, L. F., Battistelli, E. S., Bond, J. R., Brown, B., Burger, B., Chervenak, J., Das, S., Devlin, M. J., Dicker, S. R., Doriese, W. B., Dunkley, J., Dünner, R., ... Zhao, Y. (2011). The Atacama Cosmology Telescope: Cosmology from galaxy clusters detected via the Sunyaev-Zel'dovich effect. Astrophysical Journal, 732(1), Article 44. https://doi.org/10.1088/0004-637X/732/1/44

Sehgal, N, Trac, H, Acquaviva, V, Ade, PAR, Aguirre, P, Amiri, M, Appel, JW, Barrientos, LF, Battistelli, ES, Bond, JR, Brown, B, Burger, B, Chervenak, J, Das, S, Devlin, MJ, Dicker, SR, Doriese, WB, Dunkley, J, Dünner, R, Essinger-Hileman, T, Fisher, RP, Fowler, JW, Hajian, A, Halpern, M, Hasselfield, M, Hernández-Monteagudo, C, Hilton, GC, Hilton, M, Hincks, AD, Hlozek, R, Holtz, D, Huffenberger, KM, Hughes, DH, Hughes, JP, Infante, L, Irwin, KD, Jones, A, Juin, JB, Klein, J, Kosowsky, A, Lau, JM, Limon, M, Lin, YT, Lupton, RH, Marriage, TA, Marsden, D, Martocci, K, Mauskopf, P, Menanteau, F, Moodley, K, Moseley, H, Netterfield, CB, Niemack, MD, Nolta, MR, Page, LA, Parker, L, Partridge, B, Reid, B, Sherwin, BD, Sievers, J, Spergel, DN, Staggs, ST, Swetz, DS, Switzer, ER, Thornton, R, Tucker, C, Warne, R, Wollack, E & Zhao, Y 2011, 'The Atacama Cosmology Telescope: Cosmology from galaxy clusters detected via the Sunyaev-Zel'dovich effect', Astrophysical Journal, vol. 732, no. 1, 44. https://doi.org/10.1088/0004-637X/732/1/44

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title = "The Atacama Cosmology Telescope: Cosmology from galaxy clusters detected via the Sunyaev-Zel'dovich effect",

abstract = "We present constraints on cosmological parameters based on a sample of Sunyaev-Zel'dovich-selected (SZ-selected) galaxy clusters detected in a millimeter-wave survey by the Atacama Cosmology Telescope. The cluster sample used in this analysis consists of nine optically confirmed high-mass clusters comprising the high-significance end of the total cluster sample identified in 455 deg2 of sky surveyed during 2008 at 148 GHz. We focus on the most massive systems to reduce the degeneracy between unknown cluster astrophysics and cosmology derived from SZ surveys. We describe the scaling relation between cluster mass and SZ signal with a four-parameter fit. Marginalizing over the values of the parameters in this fit with conservative priors gives σ8 = 0.851 ± 0.115 and w = -1.14 ± 0.35 for a spatially flat wCDM cosmological model with Wilkinson Microwave Anisotropy Probe (WMAP) seven-year priors on cosmological parameters. This gives a modest improvement in statistical uncertainty over WMAP seven-year constraints alone. Fixing the scaling relation between the cluster mass and SZ signal to a fiducial relation obtained from numerical simulations and calibrated by X-ray observations, we find σ8 = 0.821 ± 0.044 and w = -1.05 ± 0.20. These results are consistent with constraints from WMAP7 plus baryon acoustic oscillations plus Type Ia supernova which give σ8 = 0.802 ± 0.038 and w = -0.98 ± 0.053. A stacking analysis of the clusters in this sample compared to clusters simulated assuming the fiducial model also shows good agreement. These results suggest that, given the sample of clusters used here, both the astrophysics of massive clusters and the cosmological parameters derived from them are broadly consistent with current models.",

keywords = "cosmic background radiation, cosmology: observations, galaxies: clusters: general",

author = "Neelima Sehgal and Hy Trac and Viviana Acquaviva and Ade, {Peter A.R.} and Paula Aguirre and Mandana Amiri and Appel, {John W.} and Barrientos, {L. Felipe} and Battistelli, {Elia S.} and Bond, {J. Richard} and Ben Brown and Bryce Burger and Jay Chervenak and Sudeep Das and Devlin, {Mark J.} and Dicker, {Simon R.} and Doriese, {W. Bertrand} and Joanna Dunkley and Rolando D{\"u}nner and Thomas Essinger-Hileman and Fisher, {Ryan P.} and Fowler, {Joseph W.} and Amir Hajian and Mark Halpern and Matthew Hasselfield and Carlos Hern{\'a}ndez-Monteagudo and Hilton, {Gene C.} and Matt Hilton and Hincks, {Adam D.} and Ren{\'e}e Hlozek and David Holtz and Huffenberger, {Kevin M.} and Hughes, {David H.} and Hughes, {John P.} and Leopoldo Infante and Irwin, {Kent D.} and Andrew Jones and Juin, {Jean Baptiste} and Jeff Klein and Arthur Kosowsky and Lau, {Judy M.} and Michele Limon and Lin, {Yen Ting} and Lupton, {Robert H.} and Marriage, {Tobias A.} and Danica Marsden and Krista Martocci and Phil Mauskopf and Felipe Menanteau and Kavilan Moodley and Harvey Moseley and Netterfield, {Calvin B.} and Niemack, {Michael D.} and Nolta, {Michael R.} and Page, {Lyman A.} and Lucas Parker and Bruce Partridge and Beth Reid and Sherwin, {Blake D.} and Jon Sievers and Spergel, {David N.} and Staggs, {Suzanne T.} and Swetz, {Daniel S.} and Switzer, {Eric R.} and Robert Thornton and Carole Tucker and Ryan Warne and Ed Wollack and Yue Zhao",

year = "2011",

month = may,

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doi = "10.1088/0004-637X/732/1/44",

language = "English (US)",

volume = "732",

journal = "Astrophysical Journal",

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TY - JOUR

T1 - The Atacama Cosmology Telescope

T2 - Cosmology from galaxy clusters detected via the Sunyaev-Zel'dovich effect

AU - Sehgal, Neelima

AU - Trac, Hy

AU - Acquaviva, Viviana

AU - Ade, Peter A.R.

AU - Aguirre, Paula

AU - Amiri, Mandana

AU - Appel, John W.

AU - Barrientos, L. Felipe

AU - Battistelli, Elia S.

AU - Bond, J. Richard

AU - Brown, Ben

AU - Burger, Bryce

AU - Chervenak, Jay

AU - Das, Sudeep

AU - Devlin, Mark J.

AU - Dicker, Simon R.

AU - Doriese, W. Bertrand

AU - Dunkley, Joanna

AU - Dünner, Rolando

AU - Essinger-Hileman, Thomas

AU - Fisher, Ryan P.

AU - Fowler, Joseph W.

AU - Hajian, Amir

AU - Halpern, Mark

AU - Hasselfield, Matthew

AU - Hernández-Monteagudo, Carlos

AU - Hilton, Gene C.

AU - Hilton, Matt

AU - Hincks, Adam D.

AU - Hlozek, Renée

AU - Holtz, David

AU - Huffenberger, Kevin M.

AU - Hughes, David H.

AU - Hughes, John P.

AU - Infante, Leopoldo

AU - Irwin, Kent D.

AU - Jones, Andrew

AU - Juin, Jean Baptiste

AU - Klein, Jeff

AU - Kosowsky, Arthur

AU - Lau, Judy M.

AU - Limon, Michele

AU - Lin, Yen Ting

AU - Lupton, Robert H.

AU - Marriage, Tobias A.

AU - Marsden, Danica

AU - Martocci, Krista

AU - Mauskopf, Phil

AU - Menanteau, Felipe

AU - Moodley, Kavilan

AU - Moseley, Harvey

AU - Netterfield, Calvin B.

AU - Niemack, Michael D.

AU - Nolta, Michael R.

AU - Page, Lyman A.

AU - Parker, Lucas

AU - Partridge, Bruce

AU - Reid, Beth

AU - Sherwin, Blake D.

AU - Sievers, Jon

AU - Spergel, David N.

AU - Staggs, Suzanne T.

AU - Swetz, Daniel S.

AU - Switzer, Eric R.

AU - Thornton, Robert

AU - Tucker, Carole

AU - Warne, Ryan

AU - Wollack, Ed

AU - Zhao, Yue

PY - 2011/5/1

Y1 - 2011/5/1

N2 - We present constraints on cosmological parameters based on a sample of Sunyaev-Zel'dovich-selected (SZ-selected) galaxy clusters detected in a millimeter-wave survey by the Atacama Cosmology Telescope. The cluster sample used in this analysis consists of nine optically confirmed high-mass clusters comprising the high-significance end of the total cluster sample identified in 455 deg2 of sky surveyed during 2008 at 148 GHz. We focus on the most massive systems to reduce the degeneracy between unknown cluster astrophysics and cosmology derived from SZ surveys. We describe the scaling relation between cluster mass and SZ signal with a four-parameter fit. Marginalizing over the values of the parameters in this fit with conservative priors gives σ8 = 0.851 ± 0.115 and w = -1.14 ± 0.35 for a spatially flat wCDM cosmological model with Wilkinson Microwave Anisotropy Probe (WMAP) seven-year priors on cosmological parameters. This gives a modest improvement in statistical uncertainty over WMAP seven-year constraints alone. Fixing the scaling relation between the cluster mass and SZ signal to a fiducial relation obtained from numerical simulations and calibrated by X-ray observations, we find σ8 = 0.821 ± 0.044 and w = -1.05 ± 0.20. These results are consistent with constraints from WMAP7 plus baryon acoustic oscillations plus Type Ia supernova which give σ8 = 0.802 ± 0.038 and w = -0.98 ± 0.053. A stacking analysis of the clusters in this sample compared to clusters simulated assuming the fiducial model also shows good agreement. These results suggest that, given the sample of clusters used here, both the astrophysics of massive clusters and the cosmological parameters derived from them are broadly consistent with current models.

AB - We present constraints on cosmological parameters based on a sample of Sunyaev-Zel'dovich-selected (SZ-selected) galaxy clusters detected in a millimeter-wave survey by the Atacama Cosmology Telescope. The cluster sample used in this analysis consists of nine optically confirmed high-mass clusters comprising the high-significance end of the total cluster sample identified in 455 deg2 of sky surveyed during 2008 at 148 GHz. We focus on the most massive systems to reduce the degeneracy between unknown cluster astrophysics and cosmology derived from SZ surveys. We describe the scaling relation between cluster mass and SZ signal with a four-parameter fit. Marginalizing over the values of the parameters in this fit with conservative priors gives σ8 = 0.851 ± 0.115 and w = -1.14 ± 0.35 for a spatially flat wCDM cosmological model with Wilkinson Microwave Anisotropy Probe (WMAP) seven-year priors on cosmological parameters. This gives a modest improvement in statistical uncertainty over WMAP seven-year constraints alone. Fixing the scaling relation between the cluster mass and SZ signal to a fiducial relation obtained from numerical simulations and calibrated by X-ray observations, we find σ8 = 0.821 ± 0.044 and w = -1.05 ± 0.20. These results are consistent with constraints from WMAP7 plus baryon acoustic oscillations plus Type Ia supernova which give σ8 = 0.802 ± 0.038 and w = -0.98 ± 0.053. A stacking analysis of the clusters in this sample compared to clusters simulated assuming the fiducial model also shows good agreement. These results suggest that, given the sample of clusters used here, both the astrophysics of massive clusters and the cosmological parameters derived from them are broadly consistent with current models.

KW - cosmic background radiation

KW - cosmology: observations

KW - galaxies: clusters: general

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JF - Astrophysical Journal

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ER -

The Atacama Cosmology Telescope: Cosmology from galaxy clusters detected via the Sunyaev-Zel'dovich effect

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