Dark Energy Survey Y3 results: blending shear and redshift biases in image simulations
dc.date.accessioned | 2022-02-19T19:29:42Z | |
dc.date.available | 2022-02-19T19:29:42Z | |
dc.date.created | 2022-01-29T16:30:44Z | |
dc.date.issued | 2021 | |
dc.identifier.citation | MacCrann, Niall Becker, Matthew R. McCullough, J. Amon, A. Gruen, Daniel Jarvis, M. Choi, A. Troxel, Michael A. Sheldon, E. Yanny, Brian Herner, K. Dodelson, Scott Zuntz, Joseph Eckert, K. Rollins, R. P. Varga, Tamas Norbert Bernstein, Gary M. Gruendl, Robert A. Harrison, I. Hartley, William G. Sevilla-Noarbe, Ignacio Pieres, Adriano Bridle, Sarah L. Myles, Justin Alarcon, A. Everett, S. Sánchez, C. Huff, Eric M. Tarsitano, F. Gatti, M. Secco, Lucas Frozza Abbott, Timothy M. C. Aguena, Michel Allam, Sahar Annis, J. Bacon, D. Bertin, E. Brooks, D. Burke, David L. Carnero Rosell, Aurelio Carrasco Kind, Matias Carretero, J. Costanzi, Matteo Crocce, Martin Pereira, Maria Elidaiana da Silva De Vicente, Juan Desai, S. Diehl, Herman T. Dietrich, J. P. Doel, P. Eifler, Tim F. Ferrero, Ismael Ferté, Agnès Flaugher, B. Fosalba, Pablo Frieman, J. García-Bellido, Juan Gaztañaga, Enrique Gerdes, David W. Giannantonio, Tommaso Gschwend, J. Gutierrez, G. Hinton, Samuel R. Hollowood, Devon L. Honscheid, Klaus James, D. J. Lahav, Ofer Lima, M. Maia, Marcio A. G. March, M. Marshall, Jennifer L. Martini, P. Melchior, P. Menanteau, Felipe Miquel, Ramon Mohr, Joseph J. Morgan, R. Muir, J. Ogando, Ricardo L. C. Palmese, Antonella Paz-Chinchón, Francisco Plazas, Andrés A. Rodriguez-Monroy, M. Roodman, A. Samuroff, S. Sanchez, E. Scarpine, V. Serrano, S. Smith, M. Soares-Santos, Marcelle Suchyta, Eric Swanson, Molly E. C. Tarlé, Gregory Thomas, D. To, Chun-Hao Wilkinson, R. D. . Dark Energy Survey Y3 results: blending shear and redshift biases in image simulations. Monthly notices of the Royal Astronomical Society. 2021, 509(3), 3371-3394 | |
dc.identifier.uri | http://hdl.handle.net/10852/91163 | |
dc.description.abstract | As the statistical power of galaxy weak lensing reaches per cent level precision, large, realistic, and robust simulations are required to calibrate observational systematics, especially given the increased importance of object blending as survey depths increase. To capture the coupled effects of blending in both shear and photometric redshift calibration, we define the effective redshift distribution for lensing, nγ(z), and describe how to estimate it using image simulations. We use an extensive suite of tailored image simulations to characterize the performance of the shear estimation pipeline applied to the Dark Energy Survey (DES) Year 3 data set. We describe the multiband, multi-epoch simulations, and demonstrate their high level of realism through comparisons to the real DES data. We isolate the effects that generate shear calibration biases by running variations on our fiducial simulation, and find that blending-related effects are the dominant contribution to the mean multiplicative bias of approximately −2 per cent. By generating simulations with input shear signals that vary with redshift, we calibrate biases in our estimation of the effective redshift distribution, and demonstrate the importance of this approach when blending is present. We provide corrected effective redshift distributions that incorporate statistical and systematic uncertainties, ready for use in DES Year 3 weak lensing analyses. | |
dc.language | EN | |
dc.title | Dark Energy Survey Y3 results: blending shear and redshift biases in image simulations | |
dc.type | Journal article | |
dc.creator.author | MacCrann, Niall | |
dc.creator.author | Becker, Matthew R. | |
dc.creator.author | McCullough, J. | |
dc.creator.author | Amon, A. | |
dc.creator.author | Gruen, Daniel | |
dc.creator.author | Jarvis, M. | |
dc.creator.author | Choi, A. | |
dc.creator.author | Troxel, Michael A. | |
dc.creator.author | Sheldon, E. | |
dc.creator.author | Yanny, Brian | |
dc.creator.author | Herner, K. | |
dc.creator.author | Dodelson, Scott | |
dc.creator.author | Zuntz, Joseph | |
dc.creator.author | Eckert, K. | |
dc.creator.author | Rollins, R. P. | |
dc.creator.author | Varga, Tamas Norbert | |
dc.creator.author | Bernstein, Gary M. | |
dc.creator.author | Gruendl, Robert A. | |
dc.creator.author | Harrison, I. | |
dc.creator.author | Hartley, William G. | |
dc.creator.author | Sevilla-Noarbe, Ignacio | |
dc.creator.author | Pieres, Adriano | |
dc.creator.author | Bridle, Sarah L. | |
dc.creator.author | Myles, Justin | |
dc.creator.author | Alarcon, A. | |
dc.creator.author | Everett, S. | |
dc.creator.author | Sánchez, C. | |
dc.creator.author | Huff, Eric M. | |
dc.creator.author | Tarsitano, F. | |
dc.creator.author | Gatti, M. | |
dc.creator.author | Secco, Lucas Frozza | |
dc.creator.author | Abbott, Timothy M. C. | |
dc.creator.author | Aguena, Michel | |
dc.creator.author | Allam, Sahar | |
dc.creator.author | Annis, J. | |
dc.creator.author | Bacon, D. | |
dc.creator.author | Bertin, E. | |
dc.creator.author | Brooks, D. | |
dc.creator.author | Burke, David L. | |
dc.creator.author | Carnero Rosell, Aurelio | |
dc.creator.author | Carrasco Kind, Matias | |
dc.creator.author | Carretero, J. | |
dc.creator.author | Costanzi, Matteo | |
dc.creator.author | Crocce, Martin | |
dc.creator.author | Pereira, Maria Elidaiana da Silva | |
dc.creator.author | De Vicente, Juan | |
dc.creator.author | Desai, S. | |
dc.creator.author | Diehl, Herman T. | |
dc.creator.author | Dietrich, J. P. | |
dc.creator.author | Doel, P. | |
dc.creator.author | Eifler, Tim F. | |
dc.creator.author | Ferrero, Ismael | |
dc.creator.author | Ferté, Agnès | |
dc.creator.author | Flaugher, B. | |
dc.creator.author | Fosalba, Pablo | |
dc.creator.author | Frieman, J. | |
dc.creator.author | García-Bellido, Juan | |
dc.creator.author | Gaztañaga, Enrique | |
dc.creator.author | Gerdes, David W. | |
dc.creator.author | Giannantonio, Tommaso | |
dc.creator.author | Gschwend, J. | |
dc.creator.author | Gutierrez, G. | |
dc.creator.author | Hinton, Samuel R. | |
dc.creator.author | Hollowood, Devon L. | |
dc.creator.author | Honscheid, Klaus | |
dc.creator.author | James, D. J. | |
dc.creator.author | Lahav, Ofer | |
dc.creator.author | Lima, M. | |
dc.creator.author | Maia, Marcio A. G. | |
dc.creator.author | March, M. | |
dc.creator.author | Marshall, Jennifer L. | |
dc.creator.author | Martini, P. | |
dc.creator.author | Melchior, P. | |
dc.creator.author | Menanteau, Felipe | |
dc.creator.author | Miquel, Ramon | |
dc.creator.author | Mohr, Joseph J. | |
dc.creator.author | Morgan, R. | |
dc.creator.author | Muir, J. | |
dc.creator.author | Ogando, Ricardo L. C. | |
dc.creator.author | Palmese, Antonella | |
dc.creator.author | Paz-Chinchón, Francisco | |
dc.creator.author | Plazas, Andrés A. | |
dc.creator.author | Rodriguez-Monroy, M. | |
dc.creator.author | Roodman, A. | |
dc.creator.author | Samuroff, S. | |
dc.creator.author | Sanchez, E. | |
dc.creator.author | Scarpine, V. | |
dc.creator.author | Serrano, S. | |
dc.creator.author | Smith, M. | |
dc.creator.author | Soares-Santos, Marcelle | |
dc.creator.author | Suchyta, Eric | |
dc.creator.author | Swanson, Molly E. C. | |
dc.creator.author | Tarlé, Gregory | |
dc.creator.author | Thomas, D. | |
dc.creator.author | To, Chun-Hao | |
dc.creator.author | Wilkinson, R. D. | |
cristin.unitcode | 185,15,3,0 | |
cristin.unitname | Institutt for teoretisk astrofysikk | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |
dc.identifier.cristin | 1993183 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Monthly notices of the Royal Astronomical Society&rft.volume=509&rft.spage=3371&rft.date=2021 | |
dc.identifier.jtitle | Monthly notices of the Royal Astronomical Society | |
dc.identifier.volume | 509 | |
dc.identifier.issue | 3 | |
dc.identifier.startpage | 3371 | |
dc.identifier.endpage | 3394 | |
dc.identifier.doi | https://doi.org/10.1093/mnras/stab2870 | |
dc.identifier.urn | URN:NBN:no-93761 | |
dc.subject.nvi | VDP::Astrofysikk, astronomi: 438 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 0035-8711 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/91163/1/stab2870.pdf | |
dc.type.version | PublishedVersion | |
dc.relation.project | NFR/287772 |
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