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The Dark Energy Survey Supernova Program: Investigating Beyond-$Λ$CDM

Fuente: arXiv

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Detalles Bibliográficos
Autores principales:	Camilleri, R., Davis, T. M., Vincenzi, M., Shah, P., Frieman, J., Kessler, R., Armstrong, P., Brout, D., Carr, A., Chen, R., Galbany, L., Glazebrook, K., Hinton, S. R., Lee, J., Lidman, C., Möller, A., Popovic, B., Qu, H., Sako, M., Scolnic, D., Smith, M., Sullivan, M., Sánchez, B. O., Taylor, G., Toy, M., Wiseman, P., Abbott, T. M. C., Aguena, M., Allam, S., Alves, O., Annis, J., Avila, S., Bacon, D., Bertin, E., Bocquet, S., Brooks, D., Burke, D. L., Rosell, A. Carnero, Carretero, J., Castander, F. J., da Costa, L. N., Pereira, M. E. S., Desai, S., Diehl, H. T., Doel, P., Doux, C., Everett, S., Ferrero, I., Flaugher, B., Fosalba, P., García-Bellido, J., Gatti, M., Gaztanaga, E., Giannini, G., Gruen, D., Hollowood, D. L., Honscheid, K., James, D. J., Kuehn, K., Lahav, O., Lee, S., Marshall, J. L., Mena-Fernández, J., Miquel, R., Muir, J., Myles, J., Ogando, R. L. C., Pieres, A., Malagón, A. A. Plazas, Porredon, A., Rodriguez-Monroy, M., Sanchez, E., Cid, D. Sanchez, Schubnell, M., Sevilla-Noarbe, I., Suchyta, E., Swanson, M. E. C., Tarle, G., Walker, A. R., Weaverdyck, N.
Formato:	Preprint
Publicado:	2024
Materias:	Cosmology and Nongalactic Astrophysics
Acceso en línea:	Acceder al recurso
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

_version_	1866912025341329408
author	Camilleri, R. Davis, T. M. Vincenzi, M. Shah, P. Frieman, J. Kessler, R. Armstrong, P. Brout, D. Carr, A. Chen, R. Galbany, L. Glazebrook, K. Hinton, S. R. Lee, J. Lidman, C. Möller, A. Popovic, B. Qu, H. Sako, M. Scolnic, D. Smith, M. Sullivan, M. Sánchez, B. O. Taylor, G. Toy, M. Wiseman, P. Abbott, T. M. C. Aguena, M. Allam, S. Alves, O. Annis, J. Avila, S. Bacon, D. Bertin, E. Bocquet, S. Brooks, D. Burke, D. L. Rosell, A. Carnero Carretero, J. Castander, F. J. da Costa, L. N. Pereira, M. E. S. Desai, S. Diehl, H. T. Doel, P. Doux, C. Everett, S. Ferrero, I. Flaugher, B. Fosalba, P. García-Bellido, J. Gatti, M. Gaztanaga, E. Giannini, G. Gruen, D. Hollowood, D. L. Honscheid, K. James, D. J. Kuehn, K. Lahav, O. Lee, S. Marshall, J. L. Mena-Fernández, J. Miquel, R. Muir, J. Myles, J. Ogando, R. L. C. Pieres, A. Malagón, A. A. Plazas Porredon, A. Rodriguez-Monroy, M. Sanchez, E. Cid, D. Sanchez Schubnell, M. Sevilla-Noarbe, I. Suchyta, E. Swanson, M. E. C. Tarle, G. Walker, A. R. Weaverdyck, N.
author_facet	Camilleri, R. Davis, T. M. Vincenzi, M. Shah, P. Frieman, J. Kessler, R. Armstrong, P. Brout, D. Carr, A. Chen, R. Galbany, L. Glazebrook, K. Hinton, S. R. Lee, J. Lidman, C. Möller, A. Popovic, B. Qu, H. Sako, M. Scolnic, D. Smith, M. Sullivan, M. Sánchez, B. O. Taylor, G. Toy, M. Wiseman, P. Abbott, T. M. C. Aguena, M. Allam, S. Alves, O. Annis, J. Avila, S. Bacon, D. Bertin, E. Bocquet, S. Brooks, D. Burke, D. L. Rosell, A. Carnero Carretero, J. Castander, F. J. da Costa, L. N. Pereira, M. E. S. Desai, S. Diehl, H. T. Doel, P. Doux, C. Everett, S. Ferrero, I. Flaugher, B. Fosalba, P. García-Bellido, J. Gatti, M. Gaztanaga, E. Giannini, G. Gruen, D. Hollowood, D. L. Honscheid, K. James, D. J. Kuehn, K. Lahav, O. Lee, S. Marshall, J. L. Mena-Fernández, J. Miquel, R. Muir, J. Myles, J. Ogando, R. L. C. Pieres, A. Malagón, A. A. Plazas Porredon, A. Rodriguez-Monroy, M. Sanchez, E. Cid, D. Sanchez Schubnell, M. Sevilla-Noarbe, I. Suchyta, E. Swanson, M. E. C. Tarle, G. Walker, A. R. Weaverdyck, N.
contents	We report constraints on a variety of non-standard cosmological models using the full 5-year photometrically-classified type Ia supernova sample from the Dark Energy Survey (DES-SN5YR). Both Akaike Information Criterion (AIC) and Suspiciousness calculations find no strong evidence for or against any of the non-standard models we explore. When combined with external probes, the AIC and Suspiciousness agree that 11 of the 15 models are moderately preferred over Flat-$Λ$CDM suggesting additional flexibility in our cosmological models may be required beyond the cosmological constant. We also provide a detailed discussion of all cosmological assumptions that appear in the DES supernova cosmology analyses, evaluate their impact, and provide guidance on using the DES Hubble diagram to test non-standard models. An approximate cosmological model, used to perform bias corrections to the data holds the biggest potential for harbouring cosmological assumptions. We show that even if the approximate cosmological model is constructed with a matter density shifted by $ΔΩ_m\sim0.2$ from the true matter density of a simulated data set the bias that arises is sub-dominant to statistical uncertainties. Nevertheless, we present and validate a methodology to reduce this bias.
format	Preprint
id	arxiv_https___arxiv_org_abs_2406_05048
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	The Dark Energy Survey Supernova Program: Investigating Beyond-$Λ$CDM Camilleri, R. Davis, T. M. Vincenzi, M. Shah, P. Frieman, J. Kessler, R. Armstrong, P. Brout, D. Carr, A. Chen, R. Galbany, L. Glazebrook, K. Hinton, S. R. Lee, J. Lidman, C. Möller, A. Popovic, B. Qu, H. Sako, M. Scolnic, D. Smith, M. Sullivan, M. Sánchez, B. O. Taylor, G. Toy, M. Wiseman, P. Abbott, T. M. C. Aguena, M. Allam, S. Alves, O. Annis, J. Avila, S. Bacon, D. Bertin, E. Bocquet, S. Brooks, D. Burke, D. L. Rosell, A. Carnero Carretero, J. Castander, F. J. da Costa, L. N. Pereira, M. E. S. Desai, S. Diehl, H. T. Doel, P. Doux, C. Everett, S. Ferrero, I. Flaugher, B. Fosalba, P. García-Bellido, J. Gatti, M. Gaztanaga, E. Giannini, G. Gruen, D. Hollowood, D. L. Honscheid, K. James, D. J. Kuehn, K. Lahav, O. Lee, S. Marshall, J. L. Mena-Fernández, J. Miquel, R. Muir, J. Myles, J. Ogando, R. L. C. Pieres, A. Malagón, A. A. Plazas Porredon, A. Rodriguez-Monroy, M. Sanchez, E. Cid, D. Sanchez Schubnell, M. Sevilla-Noarbe, I. Suchyta, E. Swanson, M. E. C. Tarle, G. Walker, A. R. Weaverdyck, N. Cosmology and Nongalactic Astrophysics We report constraints on a variety of non-standard cosmological models using the full 5-year photometrically-classified type Ia supernova sample from the Dark Energy Survey (DES-SN5YR). Both Akaike Information Criterion (AIC) and Suspiciousness calculations find no strong evidence for or against any of the non-standard models we explore. When combined with external probes, the AIC and Suspiciousness agree that 11 of the 15 models are moderately preferred over Flat-$Λ$CDM suggesting additional flexibility in our cosmological models may be required beyond the cosmological constant. We also provide a detailed discussion of all cosmological assumptions that appear in the DES supernova cosmology analyses, evaluate their impact, and provide guidance on using the DES Hubble diagram to test non-standard models. An approximate cosmological model, used to perform bias corrections to the data holds the biggest potential for harbouring cosmological assumptions. We show that even if the approximate cosmological model is constructed with a matter density shifted by $ΔΩ_m\sim0.2$ from the true matter density of a simulated data set the bias that arises is sub-dominant to statistical uncertainties. Nevertheless, we present and validate a methodology to reduce this bias.
title	The Dark Energy Survey Supernova Program: Investigating Beyond-$Λ$CDM
topic	Cosmology and Nongalactic Astrophysics
url	https://arxiv.org/abs/2406.05048