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DESI 2024: Reconstructing Dark Energy using Crossing Statistics with DESI DR1 BAO data

Fuente: arXiv
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Autori principali: Calderon, R., Lodha, K., Shafieloo, A., Linder, E., Sohn, W., de Mattia, A., 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., de la Macorra, A., Dey, A., Dey, B., Doel, P., Forero-Romero, J. E., Gaztañaga, E., Gontcho, S. Gontcho A, Honscheid, K., Howlett, C., Juneau, S., Kremin, A., Landriau, M., Guillou, L. Le, Levi, M. E., Manera, M., Miquel, R., Moustakas, J., Newman, J. A., Palanque-Delabrouille, N., Percival, W. J., 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, B. A., Zarrouk, P., Zou, H.
Natura: Preprint
Pubblicazione: 2024
Soggetti:
Cosmology and Nongalactic Astrophysics
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author Calderon, R.
Lodha, K.
Shafieloo, A.
Linder, E.
Sohn, W.
de Mattia, A.
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.
de la Macorra, A.
Dey, A.
Dey, B.
Doel, P.
Forero-Romero, J. E.
Gaztañaga, E.
Gontcho, S. Gontcho A
Honscheid, K.
Howlett, C.
Juneau, S.
Kremin, A.
Landriau, M.
Guillou, L. Le
Levi, M. E.
Manera, M.
Miquel, R.
Moustakas, J.
Newman, J. A.
Palanque-Delabrouille, N.
Percival, W. J.
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, B. A.
Zarrouk, P.
Zou, H.
author_facet Calderon, R.
Lodha, K.
Shafieloo, A.
Linder, E.
Sohn, W.
de Mattia, A.
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.
de la Macorra, A.
Dey, A.
Dey, B.
Doel, P.
Forero-Romero, J. E.
Gaztañaga, E.
Gontcho, S. Gontcho A
Honscheid, K.
Howlett, C.
Juneau, S.
Kremin, A.
Landriau, M.
Guillou, L. Le
Levi, M. E.
Manera, M.
Miquel, R.
Moustakas, J.
Newman, J. A.
Palanque-Delabrouille, N.
Percival, W. J.
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, B. A.
Zarrouk, P.
Zou, H.
contents 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 $z\gtrsim 1$, at varying significance depending on the 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 conventional $w_0$--$w_a$ 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 $H_0r_d$ from our model-agnostic analysis, independent of the pre-recombination physics.
format Preprint
id arxiv_https___arxiv_org_abs_2405_04216
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle DESI 2024: Reconstructing Dark Energy using Crossing Statistics with DESI DR1 BAO data
Calderon, R.
Lodha, K.
Shafieloo, A.
Linder, E.
Sohn, W.
de Mattia, A.
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.
de la Macorra, A.
Dey, A.
Dey, B.
Doel, P.
Forero-Romero, J. E.
Gaztañaga, E.
Gontcho, S. Gontcho A
Honscheid, K.
Howlett, C.
Juneau, S.
Kremin, A.
Landriau, M.
Guillou, L. Le
Levi, M. E.
Manera, M.
Miquel, R.
Moustakas, J.
Newman, J. A.
Palanque-Delabrouille, N.
Percival, W. J.
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, B. A.
Zarrouk, P.
Zou, H.
Cosmology and Nongalactic Astrophysics
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 $z\gtrsim 1$, at varying significance depending on the 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 conventional $w_0$--$w_a$ 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 $H_0r_d$ from our model-agnostic analysis, independent of the pre-recombination physics.
title DESI 2024: Reconstructing Dark Energy using Crossing Statistics with DESI DR1 BAO data
topic Cosmology and Nongalactic Astrophysics
url https://arxiv.org/abs/2405.04216

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