Desi 2024: Reconstructing dark energy using Crossing Statistics with DESI DR1 BAO data

R. Calderon; K. Lodha; A. Shafieloo; E. Linder; W. Sohn; A. de Mattia; J. L. Cervantes-Cota; R. Crittenden; T. M. Davis; M. Ishak; A. G. Kim; W. Matthewson; G. Niz; S. Park; J. Aguilar; S. Ahlen; S. Allen; D. Brooks; T. Claybaugh; A. de la Macorra; A. Dey; B. Dey; P. Doel; J. E. Forero-Romero; E. Gaztañaga; S. Gontcho A Gontcho; K. Honscheid; C. Howlett; S. Juneau; A. Kremin; M. Landriau; L. Le Guillou; M. E. Levi; M. Manera; R. Miquel; J. Moustakas; J. A. Newman; N. Palanque-Delabrouille; W. J. Percival; C. Poppett; F. Prada; M. Rezaie; G. Rossi; V. Ruhlmann-Kleider; E. Sanchez; D. Schlegel; M. Schubnell; H. Seo; D. Sprayberry; G. Tarlé; P. Taylor; M. Vargas-Magaña; B. A. Weaver; P. Zarrouk; H. Zou

doi:10.1088/1475-7516/2024/10/048

Desi 2024: Reconstructing dark energy using Crossing Statistics with DESI DR1 BAO data

R. Calderon, K. Lodha, A. Shafieloo, E. Linder, W. Sohn, A. de Mattia, J. L. Cervantes-Cota, R. Crittenden, T. M. Davis, M. Ishak, A. G. Kim, W. Matthewson, G. Niz, S. Park, J. Aguilar, S. Ahlen, S. Allen, D. Brooks, T. Claybaugh, A. de la MacorraA. Dey, B. Dey, P. Doel, J. E. Forero-Romero, E. Gaztañaga, S. Gontcho A Gontcho, K. Honscheid, C. Howlett, S. Juneau, A. Kremin, M. Landriau, L. Le Guillou, M. E. Levi, M. Manera, R. Miquel, J. Moustakas, J. A. Newman, N. Palanque-Delabrouille, W. J. Percival, C. Poppett, F. Prada, M. Rezaie, G. Rossi, V. Ruhlmann-Kleider, E. Sanchez, D. Schlegel, M. Schubnell, H. Seo, D. Sprayberry, G. Tarlé, P. Taylor, M. Vargas-Magaña, B. A. Weaver, P. Zarrouk, H. Zou

Institute of Cosmology & Gravitation

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Abstract

We implement Crossing Statistics to reconstruct in a model-agnostic manner the expansion history of the universe and properties of dark energy, using DESI Data Release 1 (DR1) BAO data in combination with one of three different supernova compilations (PantheonPlus, Union3, and DES-SN5YR) and Planck CMB observations. Our results hint towards an evolving and emergent dark energy behaviour, with negligible presence of dark energy at z ≳ 1, at varying significance depending on data sets combined. In all these reconstructions, the cosmological constant lies outside the 95% confidence intervals for some redshift ranges. This dark energy behaviour, reconstructed using Crossing Statistics, is in agreement with results from the conventionalw0–wa dark energy equation of state parametrization reported in the DESI Key cosmology paper. Our results add an extensive class of model-agnostic reconstructions with acceptable fits to the data, including models where cosmic acceleration slows down at low redshifts. We also report constraints on H₀r_d from our model-agnostic analysis, independent of the pre-recombination physics.

Original language	English
Article number	048
Number of pages	26
Journal	Journal of Cosmology and Astroparticle Physics
Volume	2024
Issue number	10
DOIs	https://doi.org/10.1088/1475-7516/2024/10/048
Publication status	Published - 15 Oct 2024

Keywords

astro-ph.CO
UKRI
STFC

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10.1088/1475-7516/2024/10/048

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Crossing_Statistics_DESIY1
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Calderon, R., Lodha, K., Shafieloo, A., Linder, E., Sohn, W., Mattia, A. D., Cervantes-Cota, J. L., Crittenden, R., Davis, T. M., Ishak, M., Kim, A. G., Matthewson, W., Niz, G., Park, S., Aguilar, J., Ahlen, S., Allen, S., Brooks, D., Claybaugh, T., ... Zou, H. (2024). Desi 2024: Reconstructing dark energy using Crossing Statistics with DESI DR1 BAO data. Journal of Cosmology and Astroparticle Physics, 2024(10), Article 048. https://doi.org/10.1088/1475-7516/2024/10/048

@article{711e6d55cbd540a98ff9ffc1a9eb1e45,

title = "Desi 2024: Reconstructing dark energy using Crossing Statistics with DESI DR1 BAO data",

abstract = "We implement Crossing Statistics to reconstruct in a model-agnostic manner the expansion history of the universe and properties of dark energy, using DESI Data Release 1 (DR1) BAO data in combination with one of three different supernova compilations (PantheonPlus, Union3, and DES-SN5YR) and Planck CMB observations. Our results hint towards an evolving and emergent dark energy behaviour, with negligible presence of dark energy at z ≳ 1, at varying significance depending on data sets combined. In all these reconstructions, the cosmological constant lies outside the 95% confidence intervals for some redshift ranges. This dark energy behaviour, reconstructed using Crossing Statistics, is in agreement with results from the conventionalw0–wa dark energy equation of state parametrization reported in the DESI Key cosmology paper. Our results add an extensive class of model-agnostic reconstructions with acceptable fits to the data, including models where cosmic acceleration slows down at low redshifts. We also report constraints on H0rd from our model-agnostic analysis, independent of the pre-recombination physics.",

keywords = "astro-ph.CO, UKRI, STFC",

author = "R. Calderon and K. Lodha and A. Shafieloo and E. Linder and W. Sohn and Mattia, {A. de} and Cervantes-Cota, {J. L.} and R. Crittenden and Davis, {T. M.} and M. Ishak and Kim, {A. G.} and W. Matthewson and G. Niz and S. Park and J. Aguilar and S. Ahlen and S. Allen and D. Brooks and T. Claybaugh and Macorra, {A. de la} and A. Dey and B. Dey and P. Doel and Forero-Romero, {J. E.} and E. Gazta{\~n}aga and Gontcho, {S. Gontcho A} and K. Honscheid and C. Howlett and S. Juneau and A. Kremin and M. Landriau and Guillou, {L. Le} and Levi, {M. E.} and M. Manera and R. Miquel and J. Moustakas and Newman, {J. A.} and N. Palanque-Delabrouille and Percival, {W. J.} and C. Poppett and F. Prada and M. Rezaie and G. Rossi and V. Ruhlmann-Kleider and E. Sanchez and D. Schlegel and M. Schubnell and H. Seo and D. Sprayberry and G. Tarl{\'e} and P. Taylor and M. Vargas-Maga{\~n}a and Weaver, {B. A.} and P. Zarrouk and H. Zou",

note = "24 pages, 10 figures",

year = "2024",

month = oct,

day = "15",

doi = "10.1088/1475-7516/2024/10/048",

language = "English",

volume = "2024",

journal = "Journal of Cosmology and Astroparticle Physics",

issn = "1475-7516",

publisher = "IOP Publishing",

number = "10",

}

Calderon, R, Lodha, K, Shafieloo, A, Linder, E, Sohn, W, Mattia, AD, Cervantes-Cota, JL, Crittenden, R, Davis, TM, Ishak, M, Kim, AG, Matthewson, W, Niz, G, Park, S, Aguilar, J, Ahlen, S, Allen, S, Brooks, D, Claybaugh, T, Macorra, ADL, Dey, A, Dey, B, Doel, P, Forero-Romero, JE, Gaztañaga, E, Gontcho, SGA, Honscheid, K, Howlett, C, Juneau, S, Kremin, A, Landriau, M, Guillou, LL, Levi, ME, Manera, M, Miquel, R, Moustakas, J, Newman, JA, Palanque-Delabrouille, N, Percival, WJ, Poppett, C, Prada, F, Rezaie, M, Rossi, G, Ruhlmann-Kleider, V, Sanchez, E, Schlegel, D, Schubnell, M, Seo, H, Sprayberry, D, Tarlé, G, Taylor, P, Vargas-Magaña, M, Weaver, BA, Zarrouk, P & Zou, H 2024, 'Desi 2024: Reconstructing dark energy using Crossing Statistics with DESI DR1 BAO data', Journal of Cosmology and Astroparticle Physics, vol. 2024, no. 10, 048. https://doi.org/10.1088/1475-7516/2024/10/048

TY - JOUR

T1 - Desi 2024

T2 - Reconstructing dark energy using Crossing Statistics with DESI DR1 BAO data

AU - Calderon, R.

AU - Lodha, K.

AU - Shafieloo, A.

AU - Linder, E.

AU - Sohn, W.

AU - Mattia, A. de

AU - Cervantes-Cota, J. L.

AU - Crittenden, R.

AU - Davis, T. M.

AU - Ishak, M.

AU - Kim, A. G.

AU - Matthewson, W.

AU - Niz, G.

AU - Park, S.

AU - Aguilar, J.

AU - Ahlen, S.

AU - Allen, S.

AU - Brooks, D.

AU - Claybaugh, T.

AU - Macorra, A. de la

AU - Dey, A.

AU - Dey, B.

AU - Doel, P.

AU - Forero-Romero, J. E.

AU - Gaztañaga, E.

AU - Gontcho, S. Gontcho A

AU - Honscheid, K.

AU - Howlett, C.

AU - Juneau, S.

AU - Kremin, A.

AU - Landriau, M.

AU - Guillou, L. Le

AU - Levi, M. E.

AU - Manera, M.

AU - Miquel, R.

AU - Moustakas, J.

AU - Newman, J. A.

AU - Palanque-Delabrouille, N.

AU - Percival, W. J.

AU - Poppett, C.

AU - Prada, F.

AU - Rezaie, M.

AU - Rossi, G.

AU - Ruhlmann-Kleider, V.

AU - Sanchez, E.

AU - Schlegel, D.

AU - Schubnell, M.

AU - Seo, H.

AU - Sprayberry, D.

AU - Tarlé, G.

AU - Taylor, P.

AU - Vargas-Magaña, M.

AU - Weaver, B. A.

AU - Zarrouk, P.

AU - Zou, H.

N1 - 24 pages, 10 figures

PY - 2024/10/15

Y1 - 2024/10/15

N2 - We implement Crossing Statistics to reconstruct in a model-agnostic manner the expansion history of the universe and properties of dark energy, using DESI Data Release 1 (DR1) BAO data in combination with one of three different supernova compilations (PantheonPlus, Union3, and DES-SN5YR) and Planck CMB observations. Our results hint towards an evolving and emergent dark energy behaviour, with negligible presence of dark energy at z ≳ 1, at varying significance depending on data sets combined. In all these reconstructions, the cosmological constant lies outside the 95% confidence intervals for some redshift ranges. This dark energy behaviour, reconstructed using Crossing Statistics, is in agreement with results from the conventionalw0–wa dark energy equation of state parametrization reported in the DESI Key cosmology paper. Our results add an extensive class of model-agnostic reconstructions with acceptable fits to the data, including models where cosmic acceleration slows down at low redshifts. We also report constraints on H0rd from our model-agnostic analysis, independent of the pre-recombination physics.

AB - We implement Crossing Statistics to reconstruct in a model-agnostic manner the expansion history of the universe and properties of dark energy, using DESI Data Release 1 (DR1) BAO data in combination with one of three different supernova compilations (PantheonPlus, Union3, and DES-SN5YR) and Planck CMB observations. Our results hint towards an evolving and emergent dark energy behaviour, with negligible presence of dark energy at z ≳ 1, at varying significance depending on data sets combined. In all these reconstructions, the cosmological constant lies outside the 95% confidence intervals for some redshift ranges. This dark energy behaviour, reconstructed using Crossing Statistics, is in agreement with results from the conventionalw0–wa dark energy equation of state parametrization reported in the DESI Key cosmology paper. Our results add an extensive class of model-agnostic reconstructions with acceptable fits to the data, including models where cosmic acceleration slows down at low redshifts. We also report constraints on H0rd from our model-agnostic analysis, independent of the pre-recombination physics.

KW - astro-ph.CO

KW - UKRI

KW - STFC

UR - https://iopscience.iop.org/article/10.1088/1475-7516/2024/10/048/meta

U2 - 10.1088/1475-7516/2024/10/048

DO - 10.1088/1475-7516/2024/10/048

M3 - Article

SN - 1475-7516

VL - 2024

JO - Journal of Cosmology and Astroparticle Physics

JF - Journal of Cosmology and Astroparticle Physics

IS - 10

M1 - 048

ER -

Desi 2024: Reconstructing dark energy using Crossing Statistics with DESI DR1 BAO data

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