<i>Euclid</i> preparation

The Euclid mission will measure cosmological parameters with unprecedented precision. To distinguish between cosmological models, it is essential to generate realistic mock observables from cosmological simulations that were run in both the standard Λ-cold-dark-matter (ΛCDM) paradigm and in many non-standard models beyond ΛCDM. We present the scientific results from a suite of cosmological N -body simulations using non-standard models including dynamical dark energy, k -essence, interacting dark energy, modified gravity, massive neutrinos, and primordial non-Gaussianities. We investigate how these models affect the large-scale-structure formation and evolution in addition to providing synthetic observables that can be used to test and constrain these models with Euclid data. We developed a custom pipeline based on the Rockstar halo finder and the nbodykit large-scale structure toolkit to analyse the particle output of non-standard simulations and generate mock observables such as halo and void catalogues, mass density fields, and power spectra in a consistent way. We compare these observables with those from the standard ΛCDM model and quantify the deviations. We find that non-standard cosmological models can leave large imprints on the synthetic observables that we have generated. Our results demonstrate that non-standard cosmological N -body simulations provide valuable insights into the physics of dark energy and dark matter, which is essential to maximising the scientific return of Euclid .

Authors

Publication Details

Journal
Astronomy and Astrophysics
Published
2024-12-24
DOI
https://doi.org/10.1051/0004-6361/202452185
Citations
2
Primary Topic
Astronomy and Astrophysical Research
Type
article
Field-Weighted Citation Impact
1.01

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article

Euclid preparation

R. Saglia, Marco Marinucci, G. Seidel, J. Brinchmann et al.
2 citations
Astronomy and Astrophysics
Astronomy and Astrophysical Research
1.01
article

Euclid preparation

R. Saglia, Marco Marinucci, G. Seidel, J. Brinchmann, P. G'omez-Alvarez, J. Hjorth, Will J. Percival, M. Ballardini, M. Calabrese, G. Riccio, K. Pedersen, C. Sirignano, M. Brescia, M. Kunz, I. Ferrero, A. Secroun, S. Paltani, M. Schirmer, J. García-Bellido, A.G Ferrari, H Hildebrandt, E. Carella, N. Mauri, O. Marggraf, J. F. Macías–Pérez, C. Padilla, Y. Copin, Alex D. Hall, A. Kiessling, A. Troja, Santiago Casas, M. Fumana, A. Díaz‐Sánchez, G. Sirri, Pierluigi Monaco, S. Bardelli, G. Desprez, A Montoro, Daniele Bertacca, Claudio Moretti, C.J.A.P. Martins, Gustavo Yepes, A. Biviano, S. Nadathur, A.R. Cooray, F. Marulli, Violeta González-Pérez, A. Ealet, T. Schrabback, R. Mor, L. Gabarra, M Miluzio, Giulia Despali, J Le Graet, E. Zucca, S. Pires, A. G. Adame, S. V. H. Haugan, D. Vergani, R. Massey, T. Vassallo, E. Romelli, C. Valieri, Lorenzo Pizzuti, C. Baccigalupi, R. Toledo-Moreo, B. Camacho Quevedo, S Bruton, M. Moresco, J. Stadel, D. Sapone, T. Castro, Juan José Díaz, M. Meneghetti, D. Bonino, S. Ilić, M. Poncet, J. Carretero, T.I Liaudat, C. Giocoli, K. Ganga, H. Dole, Jiřı́ Adámek, N Tessore, S. Avila, C. Burigana, Christopher J. Conselice, I. Tutusaus, A. Boucaud, O. Mansutti, Matteo Viel, G. Morgante, I Risso, B. De, N. Aghanim, M. Douspis, V. Allevato, G. Mainetti, M Frailis, F. Torradeflot, Alkistis Pourtsidou, L. Moscardini, D. Karagiannis, S. Escoffier, N. R. Napolitano, L Blot, E. Maiorano, W. Holmes, B. Gillis, W. Gillard, M Sahlén, F. Dubath, F. Hormuth, R. B. Metcalf, F. Fornari, A. Hornstrup, V.F Cardone, E. Medinaceli, Yann Rasera, A Calabrò, M. Pöntinen, S. Di Domizio, Antonio Ragagnin, K. Jahnkę, M. Farina, F. Mannucci, M. Magliocchetti, M Jhabvala, J. C. Salvignol, F. Pasian, R. Rebolo, V. Kansal, S Anselmi, J. Weller, S. Serrano, M. Archidiacono, F. Grupp, P. Reimberg, F. Giacomini, S. Galeotta, F. Raison, A. Balaguera-Antolínez, E. Franceschi, Marco Baldi, ENRIQUE GAZTAÑAGA, N. Martinet, S. Dusini, Ferri Hassani, B. Fiorini, N. A. Walton, Edoardo Altamura, J. Gracia-Carpio, K. Koyama, István Szapudi, K. Markovič, R. Cabanac, César Hernández‐Aguayo, L. Conversi, G. Maggio, Kevin Pardede, S. Camera, Z. Sakr, Hans A. Winther, K Tanidis, L. Legrand, E. Bozzo, Romain Teyssier, Pier-Stefano Corasaniti, Michel-Andrès Breton, L. Patrizii, N. Hamaus, V. Pettorino, K. C. Chambers, V. Lindholm, P.-F Rocci, M. Sereno, E. Keihänen, B. Sartoris, G. Castignani, P Vielzeuf, L. Piga, B. Li, G. Gozaliasl, S. Cavuoti, A. Spurio Mancini, V. Scottez, C. Carbone, S. Kermiche, J. Steinwagner, Arthur Loureiro, Alice Pisani, Sune Toft, G. Congedo, G. Fabbian, David F. Mota, P. B. Lilje, A. Fontana, F. Finelli, V. Capobianco, Filippo Vernizzi, S. Contarini, A Pezzotta, A.M.C Le Brun, Aurel Schneider, D. Potter, E. Branchini, C. Porciani, C. S. Carvalho, Y. Akrami, F. Atrio‐Barandela, S. Andreon, H. M. Courtois, A. Jimenez Mu noz, i, Yun Wang, S. Tosi, A. Da Silva, A. Silvestri, L. Maurin, Gábor Rácz, C. M. Gutiérrez, J.E. Kajava, G de Lucia, F. Gianotti, Cui Tao, B Joachimi, A. Grazian, S. de la Torre, J. Valiviita, J. Lesgourgues, X. Dupac, M. Tenti, C.C Kirkpatrick, L. Popa, S. Farrens, D. Di Ferdinando, I. Tereno, G. Meylan, M. Martinelli, L. Valenziano, G Polenta, T. Gayoux, S. Matthew, M. Castellano, H. Kurki‐Suonio, M. Wiesmann, J. Rhodes, V. Popa, S Mei, J.A. Escartin Vigo, A Cappi, B. Kubik, T Kitching, I. Lloro, F. Lacasa, Y. Ascasíbar, Y. Mellier, L. Stanco, G. Testera, A. N. Taylor, H. Degaudenzi, M. Roncarelli, G Verza, F Caro, P. Fosalba, S. Borgani, A.G. S'anchez, P.G Ferreira, S.-M Niemi, M. Kilbinger, S. Ferriol, C. A. J. Duncan
article en
2 citations

Abstract

The Euclid mission will measure cosmological parameters with unprecedented precision. To distinguish between cosmological models, it is essential to generate realistic mock observables from cosmological simulations that were run in both the standard Λ-cold-dark-matter (ΛCDM) paradigm and in many non-standard models beyond ΛCDM. We present the scientific results from a suite of cosmological N -body simulations using non-standard models including dynamical dark energy, k -essence, interacting dark energy, modified gravity, massive neutrinos, and primordial non-Gaussianities. We investigate how these models affect the large-scale-structure formation and evolution in addition to providing synthetic observables that can be used to test and constrain these models with Euclid data. We developed a custom pipeline based on the Rockstar halo finder and the nbodykit large-scale structure toolkit to analyse the particle output of non-standard simulations and generate mock observables such as halo and void catalogues, mass density fields, and power spectra in a consistent way. We compare these observables with those from the standard ΛCDM model and quantify the deviations. We find that non-standard cosmological models can leave large imprints on the synthetic observables that we have generated. Our results demonstrate that non-standard cosmological N -body simulations provide valuable insights into the physics of dark energy and dark matter, which is essential to maximising the scientific return of Euclid .

Astronomy and AstrophysicsVol. 695
Comunidad de Madrid, Academy of Finland, Ministerio de Ciencia e Innovación, Jet Propulsion Laboratory
Openalex Percentile: Top 18%
Astronomy and Astrophysical Research
1.01
DOIOpen Access PDFOpenAlex
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