Cross-correlation of gravitational lensing from DES Science Verification data with SPT and Planck lensing

D. Kirk; Y. Omori; A. Benoit-Lévy; R. Cawthon; C. Chang; P. Larsen; A. Amara; D. Bacon; T. M. Crawford; S. Dodelson; P. Fosalba; T. Giannantonio; G. Holder; B. Jain; T. Kacprzak; O. Lahav; N. MacCrann; A. Nicola; A. Refregier; E. Sheldon; K. T. Story; M. A. Troxel; J. D. Vieira; V. Vikram; J. Zuntz; T. M. C. Abbott; F. B. Abdalla; M. R. Becker; B. A. Benson; G. M. Bernstein; R. A. Bernstein; L. E. Bleem; C. Bonnett; S. L. Bridle; D. Brooks; E. Buckley-Geer; D. L. Burke; D. Capozzi; J. E. Carlstrom; A. Carnero Rosell; M. Carrasco Kind; J. Carretero; M. Crocce; C. E. Cunha; C. B. D'Andrea; L. N. da Costa; S. Desai; H. T. Diehl; J. P. Dietrich; P. Doel; T. F. Eifler; A. E. Evrard; B. Flaugher; J. Frieman; D. W. Gerdes; D. A. Goldstein; D. Gruen; R. A. Gruendl; K. Honscheid; D. J. James; M. Jarvis; S. Kent; K. Kuehn; N. Kuropatkin; M. Lima; M. March; P. Martini; P. Melchior; C. J. Miller; R. Miquel; R. C. Nichol; R. Ogando; A. A. Plazas; C. L. Reichardt; A. Roodman; E. Rozo; E. S. Rykoff; M. Sako; E. Sanchez; V. Scarpine; M. Schubnell; I. Sevilla-Noarbe; G. Simard; R. C. Smith; M. Soares-Santos; F. Sobreira; E. Suchyta; M. E. C. Swanson; G. Tarle; D. Thomas; R. H. Wechsler; J. Weller

doi:10.1093/mnras/stw570

Cross-correlation of gravitational lensing from DES Science Verification data with SPT and Planck lensing

D. Kirk, Y. Omori, A. Benoit-Lévy, R. Cawthon, C. Chang, P. Larsen, A. Amara, D. Bacon, T. M. Crawford, S. Dodelson, P. Fosalba, T. Giannantonio, G. Holder, B. Jain, T. Kacprzak, O. Lahav, N. MacCrann, A. Nicola, A. Refregier, E. SheldonK. T. Story, M. A. Troxel, J. D. Vieira, V. Vikram, J. Zuntz, T. M. C. Abbott, F. B. Abdalla, M. R. Becker, B. A. Benson, G. M. Bernstein, R. A. Bernstein, L. E. Bleem, C. Bonnett, S. L. Bridle, D. Brooks, E. Buckley-Geer, D. L. Burke, D. Capozzi, J. E. Carlstrom, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, M. Crocce, C. E. Cunha, C. B. D'Andrea, L. N. da Costa, S. Desai, H. T. Diehl, J. P. Dietrich, P. Doel, T. F. Eifler, A. E. Evrard, B. Flaugher, J. Frieman, D. W. Gerdes, D. A. Goldstein, D. Gruen, R. A. Gruendl, K. Honscheid, D. J. James, M. Jarvis, S. Kent, K. Kuehn, N. Kuropatkin, M. Lima, M. March, P. Martini, P. Melchior, C. J. Miller, R. Miquel, R. C. Nichol, R. Ogando, A. A. Plazas, C. L. Reichardt, A. Roodman, E. Rozo, E. S. Rykoff, M. Sako, E. Sanchez, V. Scarpine, M. Schubnell, I. Sevilla-Noarbe, G. Simard, R. C. Smith, M. Soares-Santos, F. Sobreira, E. Suchyta, M. E. C. Swanson, G. Tarle, D. Thomas, R. H. Wechsler, J. Weller

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Abstract

We measure the cross-correlation between weak lensing of galaxy images and of the cosmic microwave background (CMB). The effects of gravitational lensing on different sources will be correlated if the lensing is caused by the same mass fluctuations. We use galaxy shape measurements from 139 deg2 of the Dark Energy Survey (DES) Science Verification data and overlapping CMB lensing from the South Pole Telescope (SPT) and Planck. The DES source galaxies have a median redshift of zmed ∼ 0.7, while the CMB lensing kernel is broad and peaks at z ∼ 2. The resulting cross-correlation is maximally sensitive to mass fluctuations at z ∼ 0.44. Assuming the Planck 2015 best-fitting cosmology, the amplitude of the DES×SPT cross-power is found to be ASPT = 0.88 ± 0.30 and that from DES×Planck to be APlanck = 0.86 ± 0.39, where A = 1 corresponds to the theoretical prediction. These are consistent with the expected signal and correspond to significances of 2.9σ and 2.2σ, respectively. We demonstrate that our results are robust to a number of important systematic effects including the shear measurement method, estimator choice, photo-z uncertainty and CMB lensing systematics. We calculate a value of A = 1.08 ± 0.36 for DES×SPT when we correct the observations with a simple intrinsic alignment model. With three measurements of this cross-correlation now existing in the literature, there is not yet reliable evidence for any deviation from the expected LCDM level of cross-correlation. We provide forecasts for the expected signal-to-noise ratio of the combination of the five-year DES survey and SPT-3G.

Original language	English
Pages (from-to)	21-34
Number of pages	14
Journal	Monthly Notices of the Royal Astronomical Society
Volume	459
Issue number	1
Early online date	10 Mar 2016
DOIs	https://doi.org/10.1093/mnras/stw570
Publication status	Published - Jun 2016

Keywords

astro-ph.CO
gravitational lensing: weak
methods: data analysis
cosmic background radiation
RCUK
STFC

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10.1093/mnras/stw570

Cross-correlation of gravitational lensing
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2016 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
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Kirk, D., Omori, Y., Benoit-Lévy, A., Cawthon, R., Chang, C., Larsen, P., Amara, A., Bacon, D., Crawford, T. M., Dodelson, S., Fosalba, P., Giannantonio, T., Holder, G., Jain, B., Kacprzak, T., Lahav, O., MacCrann, N., Nicola, A., Refregier, A., ... Weller, J. (2016). Cross-correlation of gravitational lensing from DES Science Verification data with SPT and Planck lensing. Monthly Notices of the Royal Astronomical Society, 459(1), 21-34. https://doi.org/10.1093/mnras/stw570

@article{8faaaef99a6e4981ae8777d62702dca5,

title = "Cross-correlation of gravitational lensing from DES Science Verification data with SPT and Planck lensing",

abstract = "We measure the cross-correlation between weak lensing of galaxy images and of the cosmic microwave background (CMB). The effects of gravitational lensing on different sources will be correlated if the lensing is caused by the same mass fluctuations. We use galaxy shape measurements from 139 deg2 of the Dark Energy Survey (DES) Science Verification data and overlapping CMB lensing from the South Pole Telescope (SPT) and Planck. The DES source galaxies have a median redshift of zmed ∼ 0.7, while the CMB lensing kernel is broad and peaks at z ∼ 2. The resulting cross-correlation is maximally sensitive to mass fluctuations at z ∼ 0.44. Assuming the Planck 2015 best-fitting cosmology, the amplitude of the DES×SPT cross-power is found to be ASPT = 0.88 ± 0.30 and that from DES×Planck to be APlanck = 0.86 ± 0.39, where A = 1 corresponds to the theoretical prediction. These are consistent with the expected signal and correspond to significances of 2.9σ and 2.2σ, respectively. We demonstrate that our results are robust to a number of important systematic effects including the shear measurement method, estimator choice, photo-z uncertainty and CMB lensing systematics. We calculate a value of A = 1.08 ± 0.36 for DES×SPT when we correct the observations with a simple intrinsic alignment model. With three measurements of this cross-correlation now existing in the literature, there is not yet reliable evidence for any deviation from the expected LCDM level of cross-correlation. We provide forecasts for the expected signal-to-noise ratio of the combination of the five-year DES survey and SPT-3G.",

keywords = "astro-ph.CO, gravitational lensing: weak, methods: data analysis, cosmic background radiation, RCUK, STFC",

author = "D. Kirk and Y. Omori and A. Benoit-L{\'e}vy and R. Cawthon and C. Chang and P. Larsen and A. Amara and D. Bacon and Crawford, {T. M.} and S. Dodelson and P. Fosalba and T. Giannantonio and G. Holder and B. Jain and T. Kacprzak and O. Lahav and N. MacCrann and A. Nicola and A. Refregier and E. Sheldon and Story, {K. T.} and Troxel, {M. A.} and Vieira, {J. D.} and V. Vikram and J. Zuntz and Abbott, {T. M. C.} and Abdalla, {F. B.} and Becker, {M. R.} and Benson, {B. A.} and Bernstein, {G. M.} and Bernstein, {R. A.} and Bleem, {L. E.} and C. Bonnett and Bridle, {S. L.} and D. Brooks and E. Buckley-Geer and Burke, {D. L.} and D. Capozzi and Carlstrom, {J. E.} and Rosell, {A. Carnero} and Kind, {M. Carrasco} and J. Carretero and M. Crocce and Cunha, {C. E.} and D'Andrea, {C. B.} and Costa, {L. N. da} and S. Desai and Diehl, {H. T.} and Dietrich, {J. P.} and P. Doel and Eifler, {T. F.} and Evrard, {A. E.} and B. Flaugher and J. Frieman and Gerdes, {D. W.} and Goldstein, {D. A.} and D. Gruen and Gruendl, {R. A.} and K. Honscheid and James, {D. J.} and M. Jarvis and S. Kent and K. Kuehn and N. Kuropatkin and M. Lima and M. March and P. Martini and P. Melchior and Miller, {C. J.} and R. Miquel and Nichol, {R. C.} and R. Ogando and Plazas, {A. A.} and Reichardt, {C. L.} and A. Roodman and E. Rozo and Rykoff, {E. S.} and M. Sako and E. Sanchez and V. Scarpine and M. Schubnell and I. Sevilla-Noarbe and G. Simard and Smith, {R. C.} and M. Soares-Santos and F. Sobreira and E. Suchyta and Swanson, {M. E. C.} and G. Tarle and D. Thomas and Wechsler, {R. H.} and J. Weller",

note = "13 pages, 6 figures",

year = "2016",

month = jun,

doi = "10.1093/mnras/stw570",

language = "English",

volume = "459",

pages = "21--34",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "1",

}

Kirk, D, Omori, Y, Benoit-Lévy, A, Cawthon, R, Chang, C, Larsen, P, Amara, A, Bacon, D, Crawford, TM, Dodelson, S, Fosalba, P, Giannantonio, T, Holder, G, Jain, B, Kacprzak, T, Lahav, O, MacCrann, N, Nicola, A, Refregier, A, Sheldon, E, Story, KT, Troxel, MA, Vieira, JD, Vikram, V, Zuntz, J, Abbott, TMC, Abdalla, FB, Becker, MR, Benson, BA, Bernstein, GM, Bernstein, RA, Bleem, LE, Bonnett, C, Bridle, SL, Brooks, D, Buckley-Geer, E, Burke, DL, Capozzi, D, Carlstrom, JE, Rosell, AC, Kind, MC, Carretero, J, Crocce, M, Cunha, CE, D'Andrea, CB, Costa, LND, Desai, S, Diehl, HT, Dietrich, JP, Doel, P, Eifler, TF, Evrard, AE, Flaugher, B, Frieman, J, Gerdes, DW, Goldstein, DA, Gruen, D, Gruendl, RA, Honscheid, K, James, DJ, Jarvis, M, Kent, S, Kuehn, K, Kuropatkin, N, Lima, M, March, M, Martini, P, Melchior, P, Miller, CJ, Miquel, R, Nichol, RC, Ogando, R, Plazas, AA, Reichardt, CL, Roodman, A, Rozo, E, Rykoff, ES, Sako, M, Sanchez, E, Scarpine, V, Schubnell, M, Sevilla-Noarbe, I, Simard, G, Smith, RC, Soares-Santos, M, Sobreira, F, Suchyta, E, Swanson, MEC, Tarle, G, Thomas, D, Wechsler, RH & Weller, J 2016, 'Cross-correlation of gravitational lensing from DES Science Verification data with SPT and Planck lensing', Monthly Notices of the Royal Astronomical Society, vol. 459, no. 1, pp. 21-34. https://doi.org/10.1093/mnras/stw570

TY - JOUR

T1 - Cross-correlation of gravitational lensing from DES Science Verification data with SPT and Planck lensing

AU - Kirk, D.

AU - Omori, Y.

AU - Benoit-Lévy, A.

AU - Cawthon, R.

AU - Chang, C.

AU - Larsen, P.

AU - Amara, A.

AU - Bacon, D.

AU - Crawford, T. M.

AU - Dodelson, S.

AU - Fosalba, P.

AU - Giannantonio, T.

AU - Holder, G.

AU - Jain, B.

AU - Kacprzak, T.

AU - Lahav, O.

AU - MacCrann, N.

AU - Nicola, A.

AU - Refregier, A.

AU - Sheldon, E.

AU - Story, K. T.

AU - Troxel, M. A.

AU - Vieira, J. D.

AU - Vikram, V.

AU - Zuntz, J.

AU - Abbott, T. M. C.

AU - Abdalla, F. B.

AU - Becker, M. R.

AU - Benson, B. A.

AU - Bernstein, G. M.

AU - Bernstein, R. A.

AU - Bleem, L. E.

AU - Bonnett, C.

AU - Bridle, S. L.

AU - Brooks, D.

AU - Buckley-Geer, E.

AU - Burke, D. L.

AU - Capozzi, D.

AU - Carlstrom, J. E.

AU - Rosell, A. Carnero

AU - Kind, M. Carrasco

AU - Carretero, J.

AU - Crocce, M.

AU - Cunha, C. E.

AU - D'Andrea, C. B.

AU - Costa, L. N. da

AU - Desai, S.

AU - Diehl, H. T.

AU - Dietrich, J. P.

AU - Doel, P.

AU - Eifler, T. F.

AU - Evrard, A. E.

AU - Flaugher, B.

AU - Frieman, J.

AU - Gerdes, D. W.

AU - Goldstein, D. A.

AU - Gruen, D.

AU - Gruendl, R. A.

AU - Honscheid, K.

AU - James, D. J.

AU - Jarvis, M.

AU - Kent, S.

AU - Kuehn, K.

AU - Kuropatkin, N.

AU - Lima, M.

AU - March, M.

AU - Martini, P.

AU - Melchior, P.

AU - Miller, C. J.

AU - Miquel, R.

AU - Nichol, R. C.

AU - Ogando, R.

AU - Plazas, A. A.

AU - Reichardt, C. L.

AU - Roodman, A.

AU - Rozo, E.

AU - Rykoff, E. S.

AU - Sako, M.

AU - Sanchez, E.

AU - Scarpine, V.

AU - Schubnell, M.

AU - Sevilla-Noarbe, I.

AU - Simard, G.

AU - Smith, R. C.

AU - Soares-Santos, M.

AU - Sobreira, F.

AU - Suchyta, E.

AU - Swanson, M. E. C.

AU - Tarle, G.

AU - Thomas, D.

AU - Wechsler, R. H.

AU - Weller, J.

N1 - 13 pages, 6 figures

PY - 2016/6

Y1 - 2016/6

N2 - We measure the cross-correlation between weak lensing of galaxy images and of the cosmic microwave background (CMB). The effects of gravitational lensing on different sources will be correlated if the lensing is caused by the same mass fluctuations. We use galaxy shape measurements from 139 deg2 of the Dark Energy Survey (DES) Science Verification data and overlapping CMB lensing from the South Pole Telescope (SPT) and Planck. The DES source galaxies have a median redshift of zmed ∼ 0.7, while the CMB lensing kernel is broad and peaks at z ∼ 2. The resulting cross-correlation is maximally sensitive to mass fluctuations at z ∼ 0.44. Assuming the Planck 2015 best-fitting cosmology, the amplitude of the DES×SPT cross-power is found to be ASPT = 0.88 ± 0.30 and that from DES×Planck to be APlanck = 0.86 ± 0.39, where A = 1 corresponds to the theoretical prediction. These are consistent with the expected signal and correspond to significances of 2.9σ and 2.2σ, respectively. We demonstrate that our results are robust to a number of important systematic effects including the shear measurement method, estimator choice, photo-z uncertainty and CMB lensing systematics. We calculate a value of A = 1.08 ± 0.36 for DES×SPT when we correct the observations with a simple intrinsic alignment model. With three measurements of this cross-correlation now existing in the literature, there is not yet reliable evidence for any deviation from the expected LCDM level of cross-correlation. We provide forecasts for the expected signal-to-noise ratio of the combination of the five-year DES survey and SPT-3G.

AB - We measure the cross-correlation between weak lensing of galaxy images and of the cosmic microwave background (CMB). The effects of gravitational lensing on different sources will be correlated if the lensing is caused by the same mass fluctuations. We use galaxy shape measurements from 139 deg2 of the Dark Energy Survey (DES) Science Verification data and overlapping CMB lensing from the South Pole Telescope (SPT) and Planck. The DES source galaxies have a median redshift of zmed ∼ 0.7, while the CMB lensing kernel is broad and peaks at z ∼ 2. The resulting cross-correlation is maximally sensitive to mass fluctuations at z ∼ 0.44. Assuming the Planck 2015 best-fitting cosmology, the amplitude of the DES×SPT cross-power is found to be ASPT = 0.88 ± 0.30 and that from DES×Planck to be APlanck = 0.86 ± 0.39, where A = 1 corresponds to the theoretical prediction. These are consistent with the expected signal and correspond to significances of 2.9σ and 2.2σ, respectively. We demonstrate that our results are robust to a number of important systematic effects including the shear measurement method, estimator choice, photo-z uncertainty and CMB lensing systematics. We calculate a value of A = 1.08 ± 0.36 for DES×SPT when we correct the observations with a simple intrinsic alignment model. With three measurements of this cross-correlation now existing in the literature, there is not yet reliable evidence for any deviation from the expected LCDM level of cross-correlation. We provide forecasts for the expected signal-to-noise ratio of the combination of the five-year DES survey and SPT-3G.

KW - astro-ph.CO

KW - gravitational lensing: weak

KW - methods: data analysis

KW - cosmic background radiation

KW - RCUK

KW - STFC

U2 - 10.1093/mnras/stw570

DO - 10.1093/mnras/stw570

M3 - Article

SN - 0035-8711

VL - 459

SP - 21

EP - 34

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 1

ER -

Cross-correlation of gravitational lensing from DES Science Verification data with SPT and Planck lensing

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