Consistency of cosmic microwave background temperature measurements in three frequency bands in the 2500-square-degree SPT-SZ survey

L. M. Mocanu; T. M. Crawford; K. Aylor; B. A. Benson; L. E. Bleem; J. E. Carlstrom; C. L. Chang; H. M. Cho; R. Chown; A. T. Crites; T. De Haan; M. A. Dobbs; W. B. Everett; E. M. George; N. W. Halverson; N. L. Harrington; J. W. Henning; G. P. Holder; W. L. Holzapfel; Z. Hou; J. D. Hrubes; L. Knox; A. T. Lee; D. Luong-Van; D. P. Marrone; J. J. McMahon; S. S. Meyer; M. Millea; J. J. Mohr; T. Natoli; Y. Omori; S. Padin; C. Pryke; C. L. Reichardt; J. E. Ruhl; J. T. Sayre; K. K. Schaffer; E. Shirokoff; Z. Staniszewski; A. A. Stark; K. T. Story; K. Vanderlinde; J. D. Vieira; R. Williamson; W. L.K. Wu

doi:10.1088/1475-7516/2019/07/038

Consistency of cosmic microwave background temperature measurements in three frequency bands in the 2500-square-degree SPT-SZ survey

L. M. Mocanu, T. M. Crawford, K. Aylor, B. A. Benson, L. E. Bleem, J. E. Carlstrom, C. L. Chang, H. M. Cho, R. Chown, A. T. Crites, T. De Haan, M. A. Dobbs, W. B. Everett, E. M. George, N. W. Halverson, N. L. Harrington, J. W. Henning, G. P. Holder, W. L. Holzapfel, Z. HouJ. D. Hrubes, L. Knox, A. T. Lee, D. Luong-Van, D. P. Marrone, J. J. McMahon, S. S. Meyer, M. Millea, J. J. Mohr, T. Natoli, Y. Omori, S. Padin, C. Pryke, C. L. Reichardt, J. E. Ruhl, J. T. Sayre, K. K. Schaffer, E. Shirokoff, Z. Staniszewski, A. A. Stark, K. T. Story, K. Vanderlinde, J. D. Vieira, R. Williamson, W. L.K. Wu

Research output: Contribution to journal › Review article › peer-review

7 Scopus citations

Abstract

We present an internal consistency test of South Pole Telescope (SPT) measurements of the cosmic microwave background (CMB) temperature anisotropy using three-band data from the SPT-SZ survey. These measurements are made from observations of ∼ 2500 °² of sky in three frequency bands centered at 95, 150, and 220 GHz. We combine the information from these three bands into six semi-independent estimates of the CMB power spectrum (three single-frequency power spectra and three cross-frequency spectra) over the multipole range 650<ℓ<3000. We subtract an estimate of foreground power from each power spectrum and evaluate the consistency among the resulting CMB-only spectra. We determine that the six foreground-cleaned power spectra are consistent with the null hypothesis, in which the six cleaned spectra contain only CMB power and noise. A fit of the data to this model results in a χ² value of 236.3 for 235 degrees of freedom, and the probability to exceed this χ² value is 46%.

Original language	English (US)
Article number	038
Journal	Journal of Cosmology and Astroparticle Physics
Volume	2019
Issue number	7
DOIs	https://doi.org/10.1088/1475-7516/2019/07/038
State	Published - Jul 24 2019
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2019 IOP Publishing Ltd and Sissa Medialab.

Keywords

CMBR experiments
cosmological parameters from CMBR

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Mocanu, L. M., Crawford, T. M., Aylor, K., Benson, B. A., Bleem, L. E., Carlstrom, J. E., Chang, C. L., Cho, H. M., Chown, R., Crites, A. T., De Haan, T., Dobbs, M. A., Everett, W. B., George, E. M., Halverson, N. W., Harrington, N. L., Henning, J. W., Holder, G. P., Holzapfel, W. L., ... Wu, W. L. K. (2019). Consistency of cosmic microwave background temperature measurements in three frequency bands in the 2500-square-degree SPT-SZ survey. Journal of Cosmology and Astroparticle Physics, 2019(7), Article 038. https://doi.org/10.1088/1475-7516/2019/07/038

Mocanu, LM, Crawford, TM, Aylor, K, Benson, BA, Bleem, LE, Carlstrom, JE, Chang, CL, Cho, HM, Chown, R, Crites, AT, De Haan, T, Dobbs, MA, Everett, WB, George, EM, Halverson, NW, Harrington, NL, Henning, JW, Holder, GP, Holzapfel, WL, Hou, Z, Hrubes, JD, Knox, L, Lee, AT, Luong-Van, D, Marrone, DP, McMahon, JJ, Meyer, SS, Millea, M, Mohr, JJ, Natoli, T, Omori, Y, Padin, S, Pryke, C, Reichardt, CL, Ruhl, JE, Sayre, JT, Schaffer, KK, Shirokoff, E, Staniszewski, Z, Stark, AA, Story, KT, Vanderlinde, K, Vieira, JD, Williamson, R & Wu, WLK 2019, 'Consistency of cosmic microwave background temperature measurements in three frequency bands in the 2500-square-degree SPT-SZ survey', Journal of Cosmology and Astroparticle Physics, vol. 2019, no. 7, 038. https://doi.org/10.1088/1475-7516/2019/07/038

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title = "Consistency of cosmic microwave background temperature measurements in three frequency bands in the 2500-square-degree SPT-SZ survey",

abstract = "We present an internal consistency test of South Pole Telescope (SPT) measurements of the cosmic microwave background (CMB) temperature anisotropy using three-band data from the SPT-SZ survey. These measurements are made from observations of ∼ 2500 °2 of sky in three frequency bands centered at 95, 150, and 220 GHz. We combine the information from these three bands into six semi-independent estimates of the CMB power spectrum (three single-frequency power spectra and three cross-frequency spectra) over the multipole range 650<ℓ<3000. We subtract an estimate of foreground power from each power spectrum and evaluate the consistency among the resulting CMB-only spectra. We determine that the six foreground-cleaned power spectra are consistent with the null hypothesis, in which the six cleaned spectra contain only CMB power and noise. A fit of the data to this model results in a χ2 value of 236.3 for 235 degrees of freedom, and the probability to exceed this χ2 value is 46%.",

keywords = "CMBR experiments, cosmological parameters from CMBR",

author = "Mocanu, {L. M.} and Crawford, {T. M.} and K. Aylor and Benson, {B. A.} and Bleem, {L. E.} and Carlstrom, {J. E.} and Chang, {C. L.} and Cho, {H. M.} and R. Chown and Crites, {A. T.} and {De Haan}, T. and Dobbs, {M. A.} and Everett, {W. B.} and George, {E. M.} and Halverson, {N. W.} and Harrington, {N. L.} and Henning, {J. W.} and Holder, {G. P.} and Holzapfel, {W. L.} and Z. Hou and Hrubes, {J. D.} and L. Knox and Lee, {A. T.} and D. Luong-Van and Marrone, {D. P.} and McMahon, {J. J.} and Meyer, {S. S.} and M. Millea and Mohr, {J. J.} and T. Natoli and Y. Omori and S. Padin and C. Pryke and Reichardt, {C. L.} and Ruhl, {J. E.} and Sayre, {J. T.} and Schaffer, {K. K.} and E. Shirokoff and Z. Staniszewski and Stark, {A. A.} and Story, {K. T.} and K. Vanderlinde and Vieira, {J. D.} and R. Williamson and Wu, {W. L.K.}",

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T1 - Consistency of cosmic microwave background temperature measurements in three frequency bands in the 2500-square-degree SPT-SZ survey

AU - Mocanu, L. M.

AU - Crawford, T. M.

AU - Aylor, K.

AU - Benson, B. A.

AU - Bleem, L. E.

AU - Carlstrom, J. E.

AU - Chang, C. L.

AU - Cho, H. M.

AU - Chown, R.

AU - Crites, A. T.

AU - De Haan, T.

AU - Dobbs, M. A.

AU - Everett, W. B.

AU - George, E. M.

AU - Halverson, N. W.

AU - Harrington, N. L.

AU - Henning, J. W.

AU - Holder, G. P.

AU - Holzapfel, W. L.

AU - Hou, Z.

AU - Hrubes, J. D.

AU - Knox, L.

AU - Lee, A. T.

AU - Luong-Van, D.

AU - Marrone, D. P.

AU - McMahon, J. J.

AU - Meyer, S. S.

AU - Millea, M.

AU - Mohr, J. J.

AU - Natoli, T.

AU - Omori, Y.

AU - Padin, S.

AU - Pryke, C.

AU - Reichardt, C. L.

AU - Ruhl, J. E.

AU - Sayre, J. T.

AU - Schaffer, K. K.

AU - Shirokoff, E.

AU - Staniszewski, Z.

AU - Stark, A. A.

AU - Story, K. T.

AU - Vanderlinde, K.

AU - Vieira, J. D.

AU - Williamson, R.

AU - Wu, W. L.K.

PY - 2019/7/24

Y1 - 2019/7/24

N2 - We present an internal consistency test of South Pole Telescope (SPT) measurements of the cosmic microwave background (CMB) temperature anisotropy using three-band data from the SPT-SZ survey. These measurements are made from observations of ∼ 2500 °2 of sky in three frequency bands centered at 95, 150, and 220 GHz. We combine the information from these three bands into six semi-independent estimates of the CMB power spectrum (three single-frequency power spectra and three cross-frequency spectra) over the multipole range 650<ℓ<3000. We subtract an estimate of foreground power from each power spectrum and evaluate the consistency among the resulting CMB-only spectra. We determine that the six foreground-cleaned power spectra are consistent with the null hypothesis, in which the six cleaned spectra contain only CMB power and noise. A fit of the data to this model results in a χ2 value of 236.3 for 235 degrees of freedom, and the probability to exceed this χ2 value is 46%.

AB - We present an internal consistency test of South Pole Telescope (SPT) measurements of the cosmic microwave background (CMB) temperature anisotropy using three-band data from the SPT-SZ survey. These measurements are made from observations of ∼ 2500 °2 of sky in three frequency bands centered at 95, 150, and 220 GHz. We combine the information from these three bands into six semi-independent estimates of the CMB power spectrum (three single-frequency power spectra and three cross-frequency spectra) over the multipole range 650<ℓ<3000. We subtract an estimate of foreground power from each power spectrum and evaluate the consistency among the resulting CMB-only spectra. We determine that the six foreground-cleaned power spectra are consistent with the null hypothesis, in which the six cleaned spectra contain only CMB power and noise. A fit of the data to this model results in a χ2 value of 236.3 for 235 degrees of freedom, and the probability to exceed this χ2 value is 46%.

KW - CMBR experiments

KW - cosmological parameters from CMBR

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UR - http://www.scopus.com/inward/citedby.url?scp=85072019092&partnerID=8YFLogxK

U2 - 10.1088/1475-7516/2019/07/038

DO - 10.1088/1475-7516/2019/07/038

M3 - Review article

AN - SCOPUS:85072019092

SN - 1475-7516

VL - 2019

JO - Journal of Cosmology and Astroparticle Physics

JF - Journal of Cosmology and Astroparticle Physics

IS - 7

M1 - 038

ER -

Consistency of cosmic microwave background temperature measurements in three frequency bands in the 2500-square-degree SPT-SZ survey

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