Cross-correlation of gravitational lensing from DES Science Verification data with SPT and Planck lensing
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 deg^2 of...
Published in: | Monthly Notices of the Royal Astronomical Society |
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Online Access: | http://www.osti.gov/servlets/purl/1594617 https://www.osti.gov/biblio/1594617 https://doi.org/10.1093/mnras/stw570 |
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ftosti:oai:osti.gov:1594617 2023-07-30T04:06:55+02:00 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. Rosell, A. Carnero Kind, M. Carrasco 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. 2022-05-27 application/pdf http://www.osti.gov/servlets/purl/1594617 https://www.osti.gov/biblio/1594617 https://doi.org/10.1093/mnras/stw570 unknown http://www.osti.gov/servlets/purl/1594617 https://www.osti.gov/biblio/1594617 https://doi.org/10.1093/mnras/stw570 doi:10.1093/mnras/stw570 79 ASTRONOMY AND ASTROPHYSICS 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS 2022 ftosti https://doi.org/10.1093/mnras/stw570 2023-07-11T09:39:19Z 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 deg^2 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 $z_{med} ~ 0.7$, 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 $A_{SPT} = 0.88 ± 0.30$ and that from DES×Planck to be $A_{Planck} = 0.86 ± 0.39$, 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. Other/Unknown Material South pole SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) South Pole Monthly Notices of the Royal Astronomical Society 459 1 21 34 |
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79 ASTRONOMY AND ASTROPHYSICS 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS |
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79 ASTRONOMY AND ASTROPHYSICS 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS 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. Rosell, A. Carnero Kind, M. Carrasco 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 |
topic_facet |
79 ASTRONOMY AND ASTROPHYSICS 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS |
description |
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 deg^2 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 $z_{med} ~ 0.7$, 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 $A_{SPT} = 0.88 ± 0.30$ and that from DES×Planck to be $A_{Planck} = 0.86 ± 0.39$, 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. |
author |
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. Rosell, A. Carnero Kind, M. Carrasco 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. |
author_facet |
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. Rosell, A. Carnero Kind, M. Carrasco 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. |
author_sort |
Kirk, D. |
title |
Cross-correlation of gravitational lensing from DES Science Verification data with SPT and Planck lensing |
title_short |
Cross-correlation of gravitational lensing from DES Science Verification data with SPT and Planck lensing |
title_full |
Cross-correlation of gravitational lensing from DES Science Verification data with SPT and Planck lensing |
title_fullStr |
Cross-correlation of gravitational lensing from DES Science Verification data with SPT and Planck lensing |
title_full_unstemmed |
Cross-correlation of gravitational lensing from DES Science Verification data with SPT and Planck lensing |
title_sort |
cross-correlation of gravitational lensing from des science verification data with spt and planck lensing |
publishDate |
2022 |
url |
http://www.osti.gov/servlets/purl/1594617 https://www.osti.gov/biblio/1594617 https://doi.org/10.1093/mnras/stw570 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
http://www.osti.gov/servlets/purl/1594617 https://www.osti.gov/biblio/1594617 https://doi.org/10.1093/mnras/stw570 doi:10.1093/mnras/stw570 |
op_doi |
https://doi.org/10.1093/mnras/stw570 |
container_title |
Monthly Notices of the Royal Astronomical Society |
container_volume |
459 |
container_issue |
1 |
container_start_page |
21 |
op_container_end_page |
34 |
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1772819892301463552 |