Cosmological lensing ratios with DES Y1, SPT and Planck
International audience Correlations between tracers of the matter density field and gravitational lensing are sensitive to the evolution of the matter power spectrum and the expansion rate across cosmic time. Appropriately defined ratios of such correlation functions, on the other hand, depend only...
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Online Access: | https://hal.archives-ouvertes.fr/hal-01897221 https://doi.org/10.1093/mnras/stz1309 |
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ftccsdartic:oai:HAL:hal-01897221v1 2023-05-15T18:22:51+02:00 Cosmological lensing ratios with DES Y1, SPT and Planck Prat, J. Baxter, E.J. Shin, T. Sánchez, C. Jain, B. Miquel, R. Alarcon, A. Bacon, D. Bernstein, G.M. Cawthon, R. Crawford, T.M. Davis, C. De Vicente, J. Dodelson, S. Eifler, T.F. Friedrich, O. Gatti, M. Gruen, D. Hartley, W.G. Holder, G.P. Hoyle, B. Jarvis, M. Krause, E. MacCrann, N. Mawdsley, B. Nicola, A. Omori, Y. Pujol, A. Rau, M.M. Reichardt, C.L. Samuroff, S. Sheldon, E. Troxel, M.A. Vielzeuf, P. Zuntz, J. Abbott, T.M.C. Abdalla, F.B. Annis, J. Avila, S. Aylor, K. Benson, B.A. Bertin, E. Bleem, L.E. Brooks, D. Burke, D.L. Carlstrom, J.E. Carrasco Kind, M. Carretero, J. Chang, C.L. Cho, H-M. Institut d'Astrophysique de Paris (IAP) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) DES SPT 2019 https://hal.archives-ouvertes.fr/hal-01897221 https://doi.org/10.1093/mnras/stz1309 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stz1309 info:eu-repo/semantics/altIdentifier/arxiv/1810.02212 hal-01897221 https://hal.archives-ouvertes.fr/hal-01897221 doi:10.1093/mnras/stz1309 ARXIV: 1810.02212 INSPIRE: 1697014 Mon.Not.Roy.Astron.Soc. https://hal.archives-ouvertes.fr/hal-01897221 Mon.Not.Roy.Astron.Soc., 2019, 487 (1), pp.1363-1379. ⟨10.1093/mnras/stz1309⟩ large-scale structure of Universe cosmology: observations cosmological parameters gravitational lensing: weak [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] info:eu-repo/semantics/article Journal articles 2019 ftccsdartic https://doi.org/10.1093/mnras/stz1309 2021-12-19T02:12:52Z International audience Correlations between tracers of the matter density field and gravitational lensing are sensitive to the evolution of the matter power spectrum and the expansion rate across cosmic time. Appropriately defined ratios of such correlation functions, on the other hand, depend only on the angular diameter distances to the tracer objects and to the gravitational lensing source planes. Because of their simple cosmological dependence, such ratios can exploit available signal-to-noise ratio down to small angular scales, even where directly modelling the correlation functions is difficult. We present a measurement of lensing ratios using galaxy position and lensing data from the Dark Energy Survey, and CMB lensing data from the South Pole Telescope and Planck, obtaining the highest precision lensing ratio measurements to date. Relative to the concordance ΛCDM model, we find a best-fitting lensing ratio amplitude of A = 1.1 ± 0.1. We use the ratio measurements to generate cosmological constraints, focusing on the curvature parameter. We demonstrate that photometrically selected galaxies can be used to measure lensing ratios, and argue that future lensing ratio measurements with data from a combination of LSST and Stage-4 CMB experiments can be used to place interesting cosmological constraints, even after considering the systematic uncertainties associated with photometric redshift and galaxy shear estimation. Article in Journal/Newspaper South pole Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) South Pole Monthly Notices of the Royal Astronomical Society 487 1 1363 1379 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
large-scale structure of Universe cosmology: observations cosmological parameters gravitational lensing: weak [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
spellingShingle |
large-scale structure of Universe cosmology: observations cosmological parameters gravitational lensing: weak [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Prat, J. Baxter, E.J. Shin, T. Sánchez, C. Jain, B. Miquel, R. Alarcon, A. Bacon, D. Bernstein, G.M. Cawthon, R. Crawford, T.M. Davis, C. De Vicente, J. Dodelson, S. Eifler, T.F. Friedrich, O. Gatti, M. Gruen, D. Hartley, W.G. Holder, G.P. Hoyle, B. Jarvis, M. Krause, E. MacCrann, N. Mawdsley, B. Nicola, A. Omori, Y. Pujol, A. Rau, M.M. Reichardt, C.L. Samuroff, S. Sheldon, E. Troxel, M.A. Vielzeuf, P. Zuntz, J. Abbott, T.M.C. Abdalla, F.B. Annis, J. Avila, S. Aylor, K. Benson, B.A. Bertin, E. Bleem, L.E. Brooks, D. Burke, D.L. Carlstrom, J.E. Carrasco Kind, M. Carretero, J. Chang, C.L. Cho, H-M. Cosmological lensing ratios with DES Y1, SPT and Planck |
topic_facet |
large-scale structure of Universe cosmology: observations cosmological parameters gravitational lensing: weak [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
description |
International audience Correlations between tracers of the matter density field and gravitational lensing are sensitive to the evolution of the matter power spectrum and the expansion rate across cosmic time. Appropriately defined ratios of such correlation functions, on the other hand, depend only on the angular diameter distances to the tracer objects and to the gravitational lensing source planes. Because of their simple cosmological dependence, such ratios can exploit available signal-to-noise ratio down to small angular scales, even where directly modelling the correlation functions is difficult. We present a measurement of lensing ratios using galaxy position and lensing data from the Dark Energy Survey, and CMB lensing data from the South Pole Telescope and Planck, obtaining the highest precision lensing ratio measurements to date. Relative to the concordance ΛCDM model, we find a best-fitting lensing ratio amplitude of A = 1.1 ± 0.1. We use the ratio measurements to generate cosmological constraints, focusing on the curvature parameter. We demonstrate that photometrically selected galaxies can be used to measure lensing ratios, and argue that future lensing ratio measurements with data from a combination of LSST and Stage-4 CMB experiments can be used to place interesting cosmological constraints, even after considering the systematic uncertainties associated with photometric redshift and galaxy shear estimation. |
author2 |
Institut d'Astrophysique de Paris (IAP) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) DES SPT |
format |
Article in Journal/Newspaper |
author |
Prat, J. Baxter, E.J. Shin, T. Sánchez, C. Jain, B. Miquel, R. Alarcon, A. Bacon, D. Bernstein, G.M. Cawthon, R. Crawford, T.M. Davis, C. De Vicente, J. Dodelson, S. Eifler, T.F. Friedrich, O. Gatti, M. Gruen, D. Hartley, W.G. Holder, G.P. Hoyle, B. Jarvis, M. Krause, E. MacCrann, N. Mawdsley, B. Nicola, A. Omori, Y. Pujol, A. Rau, M.M. Reichardt, C.L. Samuroff, S. Sheldon, E. Troxel, M.A. Vielzeuf, P. Zuntz, J. Abbott, T.M.C. Abdalla, F.B. Annis, J. Avila, S. Aylor, K. Benson, B.A. Bertin, E. Bleem, L.E. Brooks, D. Burke, D.L. Carlstrom, J.E. Carrasco Kind, M. Carretero, J. Chang, C.L. Cho, H-M. |
author_facet |
Prat, J. Baxter, E.J. Shin, T. Sánchez, C. Jain, B. Miquel, R. Alarcon, A. Bacon, D. Bernstein, G.M. Cawthon, R. Crawford, T.M. Davis, C. De Vicente, J. Dodelson, S. Eifler, T.F. Friedrich, O. Gatti, M. Gruen, D. Hartley, W.G. Holder, G.P. Hoyle, B. Jarvis, M. Krause, E. MacCrann, N. Mawdsley, B. Nicola, A. Omori, Y. Pujol, A. Rau, M.M. Reichardt, C.L. Samuroff, S. Sheldon, E. Troxel, M.A. Vielzeuf, P. Zuntz, J. Abbott, T.M.C. Abdalla, F.B. Annis, J. Avila, S. Aylor, K. Benson, B.A. Bertin, E. Bleem, L.E. Brooks, D. Burke, D.L. Carlstrom, J.E. Carrasco Kind, M. Carretero, J. Chang, C.L. Cho, H-M. |
author_sort |
Prat, J. |
title |
Cosmological lensing ratios with DES Y1, SPT and Planck |
title_short |
Cosmological lensing ratios with DES Y1, SPT and Planck |
title_full |
Cosmological lensing ratios with DES Y1, SPT and Planck |
title_fullStr |
Cosmological lensing ratios with DES Y1, SPT and Planck |
title_full_unstemmed |
Cosmological lensing ratios with DES Y1, SPT and Planck |
title_sort |
cosmological lensing ratios with des y1, spt and planck |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.archives-ouvertes.fr/hal-01897221 https://doi.org/10.1093/mnras/stz1309 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
Mon.Not.Roy.Astron.Soc. https://hal.archives-ouvertes.fr/hal-01897221 Mon.Not.Roy.Astron.Soc., 2019, 487 (1), pp.1363-1379. ⟨10.1093/mnras/stz1309⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stz1309 info:eu-repo/semantics/altIdentifier/arxiv/1810.02212 hal-01897221 https://hal.archives-ouvertes.fr/hal-01897221 doi:10.1093/mnras/stz1309 ARXIV: 1810.02212 INSPIRE: 1697014 |
op_doi |
https://doi.org/10.1093/mnras/stz1309 |
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Monthly Notices of the Royal Astronomical Society |
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487 |
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