It is not σ<sub>8:</sub> constraining the non-linear matter power spectrum with the Dark Energy Survey Year-5 supernova sample

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dc.contributor.authorShah, P.en
dc.contributor.authorDavis, T. M.en
dc.contributor.authorVincenzi, M.en
dc.contributor.authorArmstrong, P.en
dc.contributor.authorBrout, D.en
dc.contributor.authorCamilleri, R.en
dc.contributor.authorGalbany, L.en
dc.contributor.authorGill, M. S.S.en
dc.contributor.authorHuterer, D.en
dc.contributor.authorJeffrey, N.en
dc.contributor.authorLahav, O.en
dc.contributor.authorLee, J.en
dc.contributor.authorLidman, C.en
dc.contributor.authorMöller, A.en
dc.contributor.authorSullivan, M.en
dc.contributor.authorWhiteway, L.en
dc.contributor.authorWiseman, P.en
dc.contributor.authorAllam, S.en
dc.contributor.authorAguena, M.en
dc.contributor.authorAnnis, J.en
dc.contributor.authorBlazek, J.en
dc.contributor.authorBrooks, D.en
dc.contributor.authorRosell, A. Carneroen
dc.contributor.authorCarretero, J.en
dc.contributor.authorConselice, C.en
dc.contributor.authorda Costa, L. N.en
dc.contributor.authorPereira, M. E.S.en
dc.contributor.authorDesai, S.en
dc.contributor.authorDiehl, H. T.en
dc.contributor.authorDoel, P.en
dc.contributor.authorEverett, S.en
dc.contributor.authorFerrero, I.en
dc.contributor.authorFlaugher, B.en
dc.contributor.authorFrieman, J.en
dc.contributor.authorGarcía-Bellido, J.en
dc.contributor.authorGaztanaga, E.en
dc.contributor.authorGiannini, G.en
dc.contributor.authorGruen, D.en
dc.contributor.authorGruendl, R. A.en
dc.contributor.authorGutierrez, G.en
dc.contributor.authorHinton, S. R.en
dc.contributor.authorHollowood, D. L.en
dc.contributor.authorHonscheid, K.en
dc.contributor.authorJames, D. J.en
dc.contributor.authorLee, S.en
dc.contributor.authorMarshall, J. L.en
dc.contributor.authorMena-Fernández, J.en
dc.contributor.authorMiquel, R.en
dc.contributor.authorPalmese, A.en
dc.contributor.authorSmith, M.en
dc.date.accessioned2025-05-23T03:25:09Z
dc.date.available2025-05-23T03:25:09Z
dc.date.issued2025-02-17en
dc.description.abstractThe weak gravitational lensing magnification of Type Ia supernovae (SNe Ia) is sensitive to the matter power spectrum on scales k > 1h Mpc−1, making it unwise to interpret SNe Ia lensing in terms of power on linear scales. We compute the probability density function of SNe Ia magnification as a function of standard cosmological parameters, plus an empirical parameter Amod which describes the suppression or enhancement of matter power on non-linear scales compared to a cold dark matter only model. While baryons are expected to enhance power on the scales relevant to SN Ia lensing, other physics such as neutrino masses or non-standard dark matter may suppress power. Using the Dark Energy Survey Year-5 sample, we find Amod = 0.77+−00.4069 (68 per cent credible interval around the median). Although the median is consistent with unity there are hints of power suppression, with Amod < 1.09 at 68 per cent credibility.en
dc.description.sponsorshipFunding for the DES Projects has been provided by the U.S. Department of Energy, the U.S. National Science Foundation, the Ministry of Science and Education of Spain, the Science and Technology Facilities Council of the United Kingdom, the Higher Education Funding Council for England, the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign, the Kavli Institute of Cosmological Physics at the University of Chicago, the Center for Cosmology and Astro-Particle Physics at the Ohio State University, the Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University, Financiadora de Estudos e Projetos, Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro, Conselho Nacional de Desenvolvimento Cientifico e Tecnologico and the Ministerio da Ciencia, Tecnologia e Inovacao, the Deutsche Forschungsgemeinschaft and the Collaborating Institutions in the Dark Energy Survey.en
dc.description.statusPeer-revieweden
dc.format.extent12en
dc.identifier.issn0035-8711en
dc.identifier.otherWOS:001434042500001en
dc.identifier.scopus85218928883en
dc.identifier.urihttp://www.scopus.com/inward/record.url?scp=85218928883&partnerID=8YFLogxKen
dc.identifier.urihttps://hdl.handle.net/1885/733751113
dc.language.isoenen
dc.provenanceThis is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.en
dc.rights © 2025 The Author(s).en
dc.sourceMonthly Notices of the Royal Astronomical Societyen
dc.subjectcosmology: cosmological parametersen
dc.subjectcosmology: dark matteren
dc.subjectgalaxies: haloesen
dc.subjectgravitational lensing: weaken
dc.subjecttransients: supernovaeen
dc.titleIt is not σ<sub>8:</sub> constraining the non-linear matter power spectrum with the Dark Energy Survey Year-5 supernova sampleen
dc.typeJournal articleen
dspace.entity.typePublicationen
local.bibliographicCitation.lastpage3825en
local.bibliographicCitation.startpage3814en
local.contributor.affiliationShah, P.; University College Londonen
local.contributor.affiliationDavis, T. M.; University of Queenslanden
local.contributor.affiliationVincenzi, M.; University of Oxforden
local.contributor.affiliationArmstrong, P.; RSAA Academic Program, Research School of Astronomy & Astrophysics, ANU College of Science and Medicine, The Australian National Universityen
local.contributor.affiliationBrout, D.; University of Oxforden
local.contributor.affiliationCamilleri, R.; University of Queenslanden
local.contributor.affiliationGalbany, L.; Institute of Space Studies of Cataloniaen
local.contributor.affiliationGill, M. S.S.; SLAC National Accelerator Laboratoryen
local.contributor.affiliationHuterer, D.; University of Michigan, Ann Arboren
local.contributor.affiliationJeffrey, N.; University College Londonen
local.contributor.affiliationLahav, O.; University College Londonen
local.contributor.affiliationLee, J.; University of Pennsylvaniaen
local.contributor.affiliationLidman, C.; RSAA Academic Program, Research School of Astronomy & Astrophysics, ANU College of Science and Medicine, The Australian National Universityen
local.contributor.affiliationMöller, A.; Swinburne University of Technologyen
local.contributor.affiliationSullivan, M.; University of Southamptonen
local.contributor.affiliationWhiteway, L.; University College Londonen
local.contributor.affiliationWiseman, P.; University of Southamptonen
local.contributor.affiliationAllam, S.; Fermi National Accelerator Laboratoryen
local.contributor.affiliationAguena, M.; Laboratório Interinstitucional de e-Astronomiaen
local.contributor.affiliationAnnis, J.; Fermi National Accelerator Laboratoryen
local.contributor.affiliationBlazek, J.; Northeastern Universityen
local.contributor.affiliationBrooks, D.; University College Londonen
local.contributor.affiliationRosell, A. Carnero; Laboratório Interinstitucional de e-Astronomiaen
local.contributor.affiliationCarretero, J.; Institute for High Energy Physicsen
local.contributor.affiliationConselice, C.; University of Manchesteren
local.contributor.affiliationda Costa, L. N.; Laboratório Interinstitucional de e-Astronomiaen
local.contributor.affiliationPereira, M. E.S.; University of Hamburgen
local.contributor.affiliationDesai, S.; Indian Institute of Technology Hyderabaden
local.contributor.affiliationDiehl, H. T.; Fermi National Accelerator Laboratoryen
local.contributor.affiliationDoel, P.; University College Londonen
local.contributor.affiliationEverett, S.; California Institute of Technologyen
local.contributor.affiliationFerrero, I.; University of Osloen
local.contributor.affiliationFlaugher, B.; Fermi National Accelerator Laboratoryen
local.contributor.affiliationFrieman, J.; Fermi National Accelerator Laboratoryen
local.contributor.affiliationGarcía-Bellido, J.; Universidad Autónoma de Madriden
local.contributor.affiliationGaztanaga, E.; Institute of Space Studies of Cataloniaen
local.contributor.affiliationGiannini, G.; Institute for High Energy Physicsen
local.contributor.affiliationGruen, D.; Ludwig Maximilian University of Munichen
local.contributor.affiliationGruendl, R. A.; University of Illinois at Urbana-Champaignen
local.contributor.affiliationGutierrez, G.; Fermi National Accelerator Laboratoryen
local.contributor.affiliationHinton, S. R.; University of Queenslanden
local.contributor.affiliationHollowood, D. L.; University of California at Santa Cruzen
local.contributor.affiliationHonscheid, K.; Ohio State Universityen
local.contributor.affiliationJames, D. J.; Harvard-Smithsonian Center for Astrophysicsen
local.contributor.affiliationLee, S.; California Institute of Technologyen
local.contributor.affiliationMarshall, J. L.; Texas A&M Universityen
local.contributor.affiliationMena-Fernández, J.; Institut polytechnique de Grenobleen
local.contributor.affiliationMiquel, R.; Institute for High Energy Physicsen
local.contributor.affiliationPalmese, A.; Carnegie Mellon Universityen
local.contributor.affiliationSmith, M.; Lancaster Universityen
local.identifier.citationvolume537en
local.identifier.doi10.1093/mnras/staf286en
local.identifier.pure446a5c59-47b7-45e0-8f6a-6b1cc2368012en
local.identifier.urlhttps://www.scopus.com/pages/publications/85218928883en
local.type.statusPublisheden

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