{"conceptdoi":"10.14278/rodare.4019","conceptrecid":"4019","created":"2026-02-09T10:51:58.743277+00:00","doi":"10.14278/rodare.4499","files":[{"bucket":"17675c03-87c1-4235-b979-123a1af9cb3f","checksum":"md5:7357423c6f821a0e7ff7ab56c88573cf","key":"Pk outputs.xlsx","links":{"self":"https://rodare.hzdr.de/api/files/17675c03-87c1-4235-b979-123a1af9cb3f/Pk%20outputs.xlsx"},"size":3226563,"type":"xlsx"}],"id":4499,"links":{"badge":"https://rodare.hzdr.de/badge/doi/10.14278/rodare.4499.svg","bucket":"https://rodare.hzdr.de/api/files/17675c03-87c1-4235-b979-123a1af9cb3f","conceptbadge":"https://rodare.hzdr.de/badge/doi/10.14278/rodare.4019.svg","conceptdoi":"https://doi.org/10.14278/rodare.4019","doi":"https://doi.org/10.14278/rodare.4499","html":"https://rodare.hzdr.de/record/4499","latest":"https://rodare.hzdr.de/api/records/4499","latest_html":"https://rodare.hzdr.de/record/4499","self":"https://rodare.hzdr.de/api/records/4499"},"metadata":{"access_right":"open","access_right_category":"success","communities":[{"id":"hzdr"},{"id":"rodare"}],"creators":[{"affiliation":"Istanbul Technical University","name":"Akarsu, Özgür"},{"affiliation":"School of Mathematical and Physical Sciences, University of Sheffield","name":"Di Valentino, Eleonora"},{"affiliation":"HZDR - CASUS","name":"Vyskocil, Jiri","orcid":"0000-0001-8822-0929"},{"affiliation":"Deutsches Zentrum für Astrophysik","name":"Yılmaz, Ezgi"},{"affiliation":"Istanbul Technical University","name":"Yükselci, A. Emrah"},{"affiliation":"HZDR - CASUS","name":"Zhuk, Oleksandr"}],"description":"<p>Matter power spectra presented in the associated&nbsp;paper are obtained from the datasets separately generated from N-body simulations with the relativistic code&nbsp;<em>gevolution </em>[1], and from calculations with the linear Boltzmann code CLASS [2], for matching cosmological best-fit parameters and background&nbsp;cosmologies.&nbsp;Regarding the latter element, we study two cases that are the concordance Lambda-Cold Dark Matter (&Lambda;CDM) model and a late-time modification with a sign-switching vacuum sector&nbsp;(&Lambda;sCDM), and for each model there are two best-fit parameter sets, derived from a&nbsp;<em>Planck</em>-only and a combined &quot;full&quot; dataset.&nbsp;</p>\n\n<p>P(k) (power spectra) outputs from gevolution are computed at the four redshifts z=15, 2, 1, 0 for the density contrasts of total matter (CDM, baryons, and massive neutrinos) as well as CDM-baryons (cb)-only. A detailed explanation of how the matter sector is handled in simulations is&nbsp;available in the main paper. All runs are carried out in boxes of L=2080 Mpc/h with 0.5 h/Mpc resolution.</p>\n\n<p>Power spectra based on CLASS outputs are obtained from the transfer functions of CDM and baryons, and the respective background densities at z=15, 2, 1, 0. CLASS dataset for the latter is shown only up to z=100.</p>\n\n<p>CDM-baryon P(k) outputs with nonlinear corrections from CLASS implementation of HMcode [3] at z=2,1, and 0 are also included in the published data, and have been used in the plots presented in the Appendix of the related manuscript.&nbsp;</p>\n\n<p>1. J. Adamek, D. Daverio, R. Durrer, and M. Kunz, gevolution: a cosmological N-body code based on General Relativity, JCAP 07, 053. arXiv:1604.06065 [astro-ph.CO].</p>\n\n<p>2. D. Blas, J. Lesgourgues, and T. Tram, The Cosmic Linear Anisotropy Solving System (CLASS) II: Approximation schemes, JCAP 07, 034. arXiv:1104.2933 [astro-ph.CO].</p>\n\n<p>3. A. J. Mead, C. Heymans, L. Lombriser, J. A. Peacock, O. I. Steele, and H. A. Winther, Accurate halo-model matter power spectra with dark energy, massive neutrinos and modified gravitational forces, Mon. Not. Roy. Astron. Soc. 459, 1468 (2016). arXiv:1602.02154 [astro-ph.CO].</p>","doc_id":"1","doi":"10.14278/rodare.4499","keywords":["cosmological N-body simulations","sign switching cosmological constant","matter power spectrum"],"language":"eng","license":{"id":"CC-BY-4.0"},"pub_id":"41918","publication_date":"2025-10-01","related_identifiers":[{"identifier":"https://www.hzdr.de/publications/Publ-41918","relation":"isIdenticalTo","scheme":"url"},{"identifier":"https://www.hzdr.de/publications/Publ-42108","relation":"isReferencedBy","scheme":"url"},{"identifier":"10.14278/rodare.4019","relation":"isVersionOf","scheme":"doi"}],"relations":{"version":[{"count":2,"index":1,"is_last":true,"last_child":{"pid_type":"recid","pid_value":"4499"},"parent":{"pid_type":"recid","pid_value":"4019"}}]},"resource_type":{"title":"Dataset","type":"dataset"},"title":"Data: Nonlinear Matter Power Spectrum from relativistic N-body Simulations: ΛsCDM versus ΛCDM"},"owners":[514],"revision":2,"stats":{"downloads":57.0,"unique_downloads":53.0,"unique_views":474.0,"version_downloads":114.0,"version_unique_downloads":107.0,"version_unique_views":960.0,"version_views":1080.0,"version_volume":359356272.0,"views":508.0,"volume":183914091.0},"updated":"2026-02-09T12:09:47.633514+00:00"}