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

Research output: Contribution to journalArticle

27 Citations (Scopus)

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 languageEnglish (US)
Pages (from-to)21-34
Number of pages14
JournalMonthly Notices of the Royal Astronomical Society
Volume459
Issue number1
DOIs
StatePublished - Jun 11 2016

Fingerprint

dark energy
cross correlation
poles
telescopes
microwaves
galaxies
energy
measurement method
cosmology
estimators
forecasting
signal-to-noise ratio
signal to noise ratios
alignment
shear
deviation
science
microwave
prediction
predictions

Keywords

  • Cosmic background radiation
  • Gravitational lensing: weak
  • Methods: data analysis

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Cross-correlation of gravitational lensing from DES Science Verification data with SPT and Planck lensing. / 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.; Sheldon, E.; Story, K. T.; Troxel, M. A.; Vieira, J. D.; Vikram, V.; Zuntz, J.; Abbott, T. M C; Abdalla, F. B.; Becker, M. R.; Benson, B. A.; Bernstein, G. M.; Bernstein, R. A.; Bleem, L. E.; Bonnett, C.; Bridle, S. L.; Brooks, D.; Buckley-Geer, E.; Burke, D. L.; Capozzi, D.; Carlstrom, J. E.; Carnero Rosell, A.; Carrasco Kind, M.; Carretero, J.; Crocce, M.; Cunha, C. E.; D'Andrea, C. B.; Da Costa, L. N.; Desai, S.; Diehl, H. T.; Dietrich, J. P.; Doel, P.; Eifler, T. F.; Evrard, A. E.; Flaugher, B.; Frieman, J.; Gerdes, D. W.; Goldstein, D. A.; Gruen, D.; Gruendl, R. A.; Honscheid, K.; James, D. J.; Jarvis, M.; Kent, S.; Kuehn, K.; Kuropatkin, N.; Lima, M.; March, M.; Martini, P.; Melchior, P.; Miller, C. J.; Miquel, R.; Nichol, R. C.; Ogando, R.; Plazas, A. A.; Reichardt, C. L.; Roodman, A.; Rozo, E.; Rykoff, E. S.; Sako, M.; Sanchez, E.; Scarpine, V.; Schubnell, M.; Sevilla-Noarbe, I.; Simard, G.; Smith, R. C.; Soares-Santos, M.; Sobreira, F.; Suchyta, E.; Swanson, M. E C; Tarle, G.; Thomas, D.; Wechsler, R. H.; Weller, J.

In: Monthly Notices of the Royal Astronomical Society, Vol. 459, No. 1, 11.06.2016, p. 21-34.

Research output: Contribution to journalArticle

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, Carnero Rosell, A, Carrasco Kind, M, Carretero, J, Crocce, M, Cunha, CE, D'Andrea, CB, Da Costa, LN, 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
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. ; Sheldon, E. ; Story, K. T. ; Troxel, M. A. ; Vieira, J. D. ; Vikram, V. ; Zuntz, J. ; Abbott, T. M C ; Abdalla, F. B. ; Becker, M. R. ; Benson, B. A. ; Bernstein, G. M. ; Bernstein, R. A. ; Bleem, L. E. ; Bonnett, C. ; Bridle, S. L. ; Brooks, D. ; Buckley-Geer, E. ; Burke, D. L. ; Capozzi, D. ; Carlstrom, J. E. ; Carnero Rosell, A. ; Carrasco Kind, M. ; Carretero, J. ; Crocce, M. ; Cunha, C. E. ; D'Andrea, C. B. ; Da Costa, L. N. ; Desai, S. ; Diehl, H. T. ; Dietrich, J. P. ; Doel, P. ; Eifler, T. F. ; Evrard, A. E. ; Flaugher, B. ; Frieman, J. ; Gerdes, D. W. ; Goldstein, D. A. ; Gruen, D. ; Gruendl, R. A. ; Honscheid, K. ; James, D. J. ; Jarvis, M. ; Kent, S. ; Kuehn, K. ; Kuropatkin, N. ; Lima, M. ; March, M. ; Martini, P. ; Melchior, P. ; Miller, C. J. ; Miquel, R. ; Nichol, R. C. ; Ogando, R. ; Plazas, A. A. ; Reichardt, C. L. ; Roodman, A. ; Rozo, E. ; Rykoff, E. S. ; Sako, M. ; Sanchez, E. ; Scarpine, V. ; Schubnell, M. ; Sevilla-Noarbe, I. ; Simard, G. ; Smith, R. C. ; Soares-Santos, M. ; Sobreira, F. ; Suchyta, E. ; Swanson, M. E C ; Tarle, G. ; Thomas, D. ; Wechsler, R. H. ; Weller, J. / Cross-correlation of gravitational lensing from DES Science Verification data with SPT and Planck lensing. In: Monthly Notices of the Royal Astronomical Society. 2016 ; Vol. 459, No. 1. pp. 21-34.
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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.",
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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 - Carnero Rosell, A.

AU - Carrasco Kind, M.

AU - Carretero, J.

AU - Crocce, M.

AU - Cunha, C. E.

AU - D'Andrea, C. B.

AU - Da Costa, L. N.

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.

PY - 2016/6/11

Y1 - 2016/6/11

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 - Cosmic background radiation

KW - Gravitational lensing: weak

KW - Methods: data analysis

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U2 - 10.1093/mnras/stw570

DO - 10.1093/mnras/stw570

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JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

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