A MEASUREMENT OF THE COSMIC MICROWAVE BACKGROUND GRAVITATIONAL LENSING POTENTIAL FROM 100 SQUARE DEGREES OF SPTPOL DATA

K. T. Story; D. Hanson; P. A R Ade; K. A. Aird; J. E. Austermann; J. A. Beall; A. N. Bender; B. A. Benson; L. E. Bleem; J. E. Carlstrom; C. L. Chang; H. C. Chiang; H. M. Cho; R. Citron; T. M. Crawford; A. T. Crites; T. De Haan; M. A. Dobbs; W. Everett; J. Gallicchio; J. Gao; E. M. George; A. Gilbert; N. W. Halverson; N. Harrington; J. W. Henning; G. C. Hilton; G. P. Holder; W. L. Holzapfel; S. Hoover; Z. Hou; J. D. Hrubes; N. Huang; J. Hubmayr; K. D. Irwin; R. Keisler; L. Knox; A. T. Lee; E. M. Leitch; D. Li; C. Liang; D. Luong-Van; J. J. McMahon; J. Mehl; S. S. Meyer; L. Mocanu; T. E. Montroy; T. Natoli; J. P. Nibarger; V. Novosad; S. Padin; C. Pryke; C. L. Reichardt; J. E. Ruhl; B. R. Saliwanchik; J. T. Sayre; K. K. Schaffer; G. Smecher; A. A. Stark; C. Tucker; K. Vanderlinde; J. D. Vieira; G. Wang; N. Whitehorn; V. Yefremenko; O. Zahn

doi:10.1088/0004-637X/810/1/50

A MEASUREMENT OF THE COSMIC MICROWAVE BACKGROUND GRAVITATIONAL LENSING POTENTIAL FROM 100 SQUARE DEGREES OF SPTPOL DATA

K. T. Story, D. Hanson, P. A R Ade, K. A. Aird, J. E. Austermann, J. A. Beall, A. N. Bender, B. A. Benson, L. E. Bleem, J. E. Carlstrom, C. L. Chang, H. C. Chiang, H. M. Cho, R. Citron, T. M. Crawford, A. T. Crites, T. De Haan, M. A. Dobbs, W. Everett, J. GallicchioJ. Gao, E. M. George, A. Gilbert, N. W. Halverson, N. Harrington, J. W. Henning, G. C. Hilton, G. P. Holder, W. L. Holzapfel, S. Hoover, Z. Hou, J. D. Hrubes, N. Huang, J. Hubmayr, K. D. Irwin, R. Keisler, L. Knox, A. T. Lee, E. M. Leitch, D. Li, C. Liang, D. Luong-Van, J. J. McMahon, J. Mehl, S. S. Meyer, L. Mocanu, T. E. Montroy, T. Natoli, J. P. Nibarger, V. Novosad, S. Padin, C. Pryke, C. L. Reichardt, J. E. Ruhl, B. R. Saliwanchik, J. T. Sayre, K. K. Schaffer, G. Smecher, A. A. Stark, C. Tucker, K. Vanderlinde, J. D. Vieira, G. Wang, N. Whitehorn, V. Yefremenko, O. Zahn

Physics and Astronomy (Twin Cities)

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Abstract

We present a measurement of the cosmic microwave background (CMB) gravitational lensing potential using data from the first two seasons of observations with SPTpol, the polarization-sensitive receiver currently installed on the South Pole Telescope. The observations used in this work cover 100 deg² of sky with arcminute resolution at 150 GHz. Using a quadratic estimator, we make maps of the CMB lensing potential from combinations of CMB temperature and polarization maps. We combine these lensing potential maps to form a minimum-variance (MV) map. The lensing potential is measured with a signal-to-noise ratio of greater than one for angular multipoles between 100 < L < 250. This is the highest signal-to-noise mass map made from the CMB to date and will be powerful in cross-correlation with other tracers of large-scale structure. We calculate the power spectrum of the lensing potential for each estimator, and we report the value of the MV power spectrum between 100 < L < 2000 as our primary result. We constrain the ratio of the spectrum to a fiducial ΛCDM model to be A_MV = 0.92 ± 0.14 (Stat.) ± 0.08 (Sys.). Restricting ourselves to polarized data only, we find A_POL = 0.92 ± 0.24 (Stat.) ± 0.11 (Sys.). This measurement rejects the hypothesis of no lensing at 5.9σ using polarization data alone, and at 14σ using both temperature and polarization data.

Original language	English (US)
Article number	50
Journal	Astrophysical Journal
Volume	810
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/810/1/50
State	Published - Sep 1 2015

Bibliographical note

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© 2015. The American Astronomical Society. All rights reserved.

Keywords

cosmic background radiation
cosmology: observations
large-scale structure of universe

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Story, K. T., Hanson, D., Ade, P. A. R., Aird, K. A., Austermann, J. E., Beall, J. A., Bender, A. N., Benson, B. A., Bleem, L. E., Carlstrom, J. E., Chang, C. L., Chiang, H. C., Cho, H. M., Citron, R., Crawford, T. M., Crites, A. T., De Haan, T., Dobbs, M. A., Everett, W., ... Zahn, O. (2015). A MEASUREMENT OF THE COSMIC MICROWAVE BACKGROUND GRAVITATIONAL LENSING POTENTIAL FROM 100 SQUARE DEGREES OF SPTPOL DATA. Astrophysical Journal, 810(1), Article 50. https://doi.org/10.1088/0004-637X/810/1/50

Story, KT, Hanson, D, Ade, PAR, Aird, KA, Austermann, JE, Beall, JA, Bender, AN, Benson, BA, Bleem, LE, Carlstrom, JE, Chang, CL, Chiang, HC, Cho, HM, Citron, R, Crawford, TM, Crites, AT, De Haan, T, Dobbs, MA, Everett, W, Gallicchio, J, Gao, J, George, EM, Gilbert, A, Halverson, NW, Harrington, N, Henning, JW, Hilton, GC, Holder, GP, Holzapfel, WL, Hoover, S, Hou, Z, Hrubes, JD, Huang, N, Hubmayr, J, Irwin, KD, Keisler, R, Knox, L, Lee, AT, Leitch, EM, Li, D, Liang, C, Luong-Van, D, McMahon, JJ, Mehl, J, Meyer, SS, Mocanu, L, Montroy, TE, Natoli, T, Nibarger, JP, Novosad, V, Padin, S, Pryke, C, Reichardt, CL, Ruhl, JE, Saliwanchik, BR, Sayre, JT, Schaffer, KK, Smecher, G, Stark, AA, Tucker, C, Vanderlinde, K, Vieira, JD, Wang, G, Whitehorn, N, Yefremenko, V & Zahn, O 2015, 'A MEASUREMENT OF THE COSMIC MICROWAVE BACKGROUND GRAVITATIONAL LENSING POTENTIAL FROM 100 SQUARE DEGREES OF SPTPOL DATA', Astrophysical Journal, vol. 810, no. 1, 50. https://doi.org/10.1088/0004-637X/810/1/50

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title = "A MEASUREMENT OF THE COSMIC MICROWAVE BACKGROUND GRAVITATIONAL LENSING POTENTIAL FROM 100 SQUARE DEGREES OF SPTPOL DATA",

abstract = "We present a measurement of the cosmic microwave background (CMB) gravitational lensing potential using data from the first two seasons of observations with SPTpol, the polarization-sensitive receiver currently installed on the South Pole Telescope. The observations used in this work cover 100 deg2 of sky with arcminute resolution at 150 GHz. Using a quadratic estimator, we make maps of the CMB lensing potential from combinations of CMB temperature and polarization maps. We combine these lensing potential maps to form a minimum-variance (MV) map. The lensing potential is measured with a signal-to-noise ratio of greater than one for angular multipoles between 100 < L < 250. This is the highest signal-to-noise mass map made from the CMB to date and will be powerful in cross-correlation with other tracers of large-scale structure. We calculate the power spectrum of the lensing potential for each estimator, and we report the value of the MV power spectrum between 100 < L < 2000 as our primary result. We constrain the ratio of the spectrum to a fiducial ΛCDM model to be AMV = 0.92 ± 0.14 (Stat.) ± 0.08 (Sys.). Restricting ourselves to polarized data only, we find APOL = 0.92 ± 0.24 (Stat.) ± 0.11 (Sys.). This measurement rejects the hypothesis of no lensing at 5.9σ using polarization data alone, and at 14σ using both temperature and polarization data.",

keywords = "cosmic background radiation, cosmology: observations, large-scale structure of universe",

author = "Story, {K. T.} and D. Hanson and Ade, {P. A R} and Aird, {K. A.} and Austermann, {J. E.} and Beall, {J. A.} and Bender, {A. N.} and Benson, {B. A.} and Bleem, {L. E.} and Carlstrom, {J. E.} and Chang, {C. L.} and Chiang, {H. C.} and Cho, {H. M.} and R. Citron and Crawford, {T. M.} and Crites, {A. T.} and {De Haan}, T. and Dobbs, {M. A.} and W. Everett and J. Gallicchio and J. Gao and George, {E. M.} and A. Gilbert and Halverson, {N. W.} and N. Harrington and Henning, {J. W.} and Hilton, {G. C.} and Holder, {G. P.} and Holzapfel, {W. L.} and S. Hoover and Z. Hou and Hrubes, {J. D.} and N. Huang and J. Hubmayr and Irwin, {K. D.} and R. Keisler and L. Knox and Lee, {A. T.} and Leitch, {E. M.} and D. Li and C. Liang and D. Luong-Van and McMahon, {J. J.} and J. Mehl and Meyer, {S. S.} and L. Mocanu and Montroy, {T. E.} and T. Natoli and Nibarger, {J. P.} and V. Novosad and S. Padin and C. Pryke and Reichardt, {C. L.} and Ruhl, {J. E.} and Saliwanchik, {B. R.} and Sayre, {J. T.} and Schaffer, {K. K.} and G. Smecher and Stark, {A. A.} and C. Tucker and K. Vanderlinde and Vieira, {J. D.} and G. Wang and N. Whitehorn and V. Yefremenko and O. Zahn",

year = "2015",

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doi = "10.1088/0004-637X/810/1/50",

language = "English (US)",

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journal = "Astrophysical Journal",

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T1 - A MEASUREMENT OF THE COSMIC MICROWAVE BACKGROUND GRAVITATIONAL LENSING POTENTIAL FROM 100 SQUARE DEGREES OF SPTPOL DATA

AU - Story, K. T.

AU - Hanson, D.

AU - Ade, P. A R

AU - Aird, K. A.

AU - Austermann, J. E.

AU - Beall, J. A.

AU - Bender, A. N.

AU - Benson, B. A.

AU - Bleem, L. E.

AU - Carlstrom, J. E.

AU - Chang, C. L.

AU - Chiang, H. C.

AU - Cho, H. M.

AU - Citron, R.

AU - Crawford, T. M.

AU - Crites, A. T.

AU - De Haan, T.

AU - Dobbs, M. A.

AU - Everett, W.

AU - Gallicchio, J.

AU - Gao, J.

AU - George, E. M.

AU - Gilbert, A.

AU - Halverson, N. W.

AU - Harrington, N.

AU - Henning, J. W.

AU - Hilton, G. C.

AU - Holder, G. P.

AU - Holzapfel, W. L.

AU - Hoover, S.

AU - Hou, Z.

AU - Hrubes, J. D.

AU - Huang, N.

AU - Hubmayr, J.

AU - Irwin, K. D.

AU - Keisler, R.

AU - Knox, L.

AU - Lee, A. T.

AU - Leitch, E. M.

AU - Li, D.

AU - Liang, C.

AU - Luong-Van, D.

AU - McMahon, J. J.

AU - Mehl, J.

AU - Meyer, S. S.

AU - Mocanu, L.

AU - Montroy, T. E.

AU - Natoli, T.

AU - Nibarger, J. P.

AU - Novosad, V.

AU - Padin, S.

AU - Pryke, C.

AU - Reichardt, C. L.

AU - Ruhl, J. E.

AU - Saliwanchik, B. R.

AU - Sayre, J. T.

AU - Schaffer, K. K.

AU - Smecher, G.

AU - Stark, A. A.

AU - Tucker, C.

AU - Vanderlinde, K.

AU - Vieira, J. D.

AU - Wang, G.

AU - Whitehorn, N.

AU - Yefremenko, V.

AU - Zahn, O.

PY - 2015/9/1

Y1 - 2015/9/1

N2 - We present a measurement of the cosmic microwave background (CMB) gravitational lensing potential using data from the first two seasons of observations with SPTpol, the polarization-sensitive receiver currently installed on the South Pole Telescope. The observations used in this work cover 100 deg2 of sky with arcminute resolution at 150 GHz. Using a quadratic estimator, we make maps of the CMB lensing potential from combinations of CMB temperature and polarization maps. We combine these lensing potential maps to form a minimum-variance (MV) map. The lensing potential is measured with a signal-to-noise ratio of greater than one for angular multipoles between 100 < L < 250. This is the highest signal-to-noise mass map made from the CMB to date and will be powerful in cross-correlation with other tracers of large-scale structure. We calculate the power spectrum of the lensing potential for each estimator, and we report the value of the MV power spectrum between 100 < L < 2000 as our primary result. We constrain the ratio of the spectrum to a fiducial ΛCDM model to be AMV = 0.92 ± 0.14 (Stat.) ± 0.08 (Sys.). Restricting ourselves to polarized data only, we find APOL = 0.92 ± 0.24 (Stat.) ± 0.11 (Sys.). This measurement rejects the hypothesis of no lensing at 5.9σ using polarization data alone, and at 14σ using both temperature and polarization data.

AB - We present a measurement of the cosmic microwave background (CMB) gravitational lensing potential using data from the first two seasons of observations with SPTpol, the polarization-sensitive receiver currently installed on the South Pole Telescope. The observations used in this work cover 100 deg2 of sky with arcminute resolution at 150 GHz. Using a quadratic estimator, we make maps of the CMB lensing potential from combinations of CMB temperature and polarization maps. We combine these lensing potential maps to form a minimum-variance (MV) map. The lensing potential is measured with a signal-to-noise ratio of greater than one for angular multipoles between 100 < L < 250. This is the highest signal-to-noise mass map made from the CMB to date and will be powerful in cross-correlation with other tracers of large-scale structure. We calculate the power spectrum of the lensing potential for each estimator, and we report the value of the MV power spectrum between 100 < L < 2000 as our primary result. We constrain the ratio of the spectrum to a fiducial ΛCDM model to be AMV = 0.92 ± 0.14 (Stat.) ± 0.08 (Sys.). Restricting ourselves to polarized data only, we find APOL = 0.92 ± 0.24 (Stat.) ± 0.11 (Sys.). This measurement rejects the hypothesis of no lensing at 5.9σ using polarization data alone, and at 14σ using both temperature and polarization data.

KW - cosmic background radiation

KW - cosmology: observations

KW - large-scale structure of universe

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DO - 10.1088/0004-637X/810/1/50

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AN - SCOPUS:84940735458

SN - 0004-637X

VL - 810

JO - Astrophysical Journal

JF - Astrophysical Journal

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ER -

A MEASUREMENT OF THE COSMIC MICROWAVE BACKGROUND GRAVITATIONAL LENSING POTENTIAL FROM 100 SQUARE DEGREES OF SPTPOL DATA

Abstract

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