<i>Euclid</i> preparation

We study the constraint on f ( R ) gravity that can be obtained by photometric primary probes of the Euclid mission. Our focus is the dependence of the constraint on the theoretical modelling of the nonlinear matter power spectrum. In the Hu–Sawicki f ( R ) gravity model, we consider four different predictions for the ratio between the power spectrum in f ( R ) and that in Λ cold dark matter (ΛCDM): a fitting formula, the halo model reaction approach, ReACT , and two emulators based on dark matter only N -body simulations, FORGE and e-Mantis . These predictions are added to the MontePython implementation to predict the angular power spectra for weak lensing (WL), photometric galaxy clustering, and their cross-correlation. By running Markov chain Monte Carlo, we compare constraints on parameters and investigate the bias of the recovered f ( R ) parameter if the data are created by a different model. For the pessimistic setting of WL, one-dimensional bias for the f ( R ) parameter, log 10 | f R 0 |, is found to be 0.5 σ when FORGE is used to create the synthetic data with log 10 | f R 0 | = −5.301 and fitted by e-Mantis . The impact of baryonic physics on WL is studied by using a baryonification emulator, BCemu . For the optimistic setting, the f ( R ) parameter and two main baryonic parameters are well constrained despite the degeneracies among these parameters. However, the difference in the nonlinear dark matter prediction can be compensated for the adjustment of baryonic parameters, and the one-dimensional marginalised constraint on log 10 | f R 0 | is biased. This bias can be avoided in the pessimistic setting at the expense of weaker constraints. For the pessimistic setting, using the ΛCDM synthetic data for WL, we obtain the prior-independent upper limit of log 10 | f R 0 | &lt; −5.6. Finally, we implement a method to include theoretical errors to avoid the bias due to inaccuracies in the nonlinear matter power spectrum prediction.

Authors

Publication Details

Journal
Astronomy and Astrophysics
Published
2025-04-15
DOI
https://doi.org/10.1051/0004-6361/202452184
Citations
5
Primary Topic
Spectroscopy and Laser Applications
Type
article
Field-Weighted Citation Impact
3.78

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article

Euclid preparation

G. Seidel, P. Fosalba, P. G'omez-Alvarez, J. Hjorth et al.
5 citations
Astronomy and Astrophysics
Spectroscopy and Laser Applications
3.78
article

Euclid preparation

G. Seidel, P. Fosalba, P. G'omez-Alvarez, J. Hjorth, Will J. Percival, F Raison, M. Ballardini, M. Calabrese, S Matthew, G. Riccio, L. Conversi, F. Gianotti, M. Schirmer, C. Sirignano, N. Martinet, E. Merlin, M. Kunz, I. Ferrero, D. Bonino, M. Roncarelli, J. Carretero, J. Steinwagner, J. García-Bellido, A.G Ferrari, S. Di Domizio, N. Mauri, S Ferriol, C. Giocoli, O. Marggraf, F. Courbin, G. Zamorani, Y. Copin, Alex D. Hall, P. Carrilho, A. Troja, P Monaco, A. Grazian, A Renzi, M. Jhabvala, A. Díaz‐Sánchez, G. Sirri, C. Bodendorf, J.J Diaz, G. Gozaliasl, F. Grupp, Matteo Cataneo, S. Bardelli, G. Desprez, P. Reimberg, A Montoro, Daniele Bertacca, E. Munari, A. Finoguenov, C.J.A.P. Martins, S. Nadathur, A.R. Cooray, F. Marulli, K Jahnke, V. Capobianco, C. Baccigalupi, T. Schrabback, G. Polenta, S.J Liu, L. Gabarra, M Miluzio, S. Farrens, J Le Graet, E. Zucca, S. Andreon, S. Pires, S. Cavuoti, A. Kiessling, S. V. H. Haugan, D. Vergani, T. Vassallo, C.J. Conselice, Antoine Blanchard, Benjamin Joachimi, Valérie Gautard, R. Toledo-Moreo, L. Pagano, B. Camacho Quevedo, S Bruton, M. Moresco, J. Brinchmann, R. Saglia, M. Kilbinger, D. Sapone, Shahab Joudaki, S. Ilić, M. Poncet, T.I Liaudat, F Finelli, K. Ganga, A. Caillat, N Tessore, H. Hildebrandt, M. Martinelli, C. Burigana, C. Colodro-Conde, A. Biviano, I. Tutusaus, Matteo Viel, G. Morgante, H Kurki-Suonio, I Risso, X. Dupac, P. Tallada-Crespí, H. Böhringer, Luís Atayde, D. Karagiannis, S. Escoffier, S. Casas, L Blot, E. Maiorano, B. Gillis, M. Castellano, M Sahlén, C. Kirkpatrick, R. Maoli, H. Degaudenzi, R. B. Metcalf, F. Fornari, A. Hornstrup, Benjamin Bose, E. Medinaceli, Yann Rasera, A Calabrò, C. Tao, E. Bozzo, M. Pöntinen, E. Branchini, F. Bernardeau, A. Secroun, M. Farina, F. Mannucci, M. Magliocchetti, S. Galeotta, F. Pasian, L. Guzzo, V. Kansal, J. Rhodes, S Anselmi, J. Weller, F. Giacomini, A Amara, E. Franceschi, A. Fontana, D. Maino, L. Patrizii, ENRIQUE GAZTAÑAGA, J Martín-Fleitas, M. Brescia, T Castro, B. Fiorini, N. A. Walton, Edoardo Altamura, J. Gracia-Carpio, K. Koyama, K. Markovič, K. Pedersen, R. Cabanac, R Teyssier, S. Camera, Z. Sakr, K Tanidis, L. Legrand, Michel-Andrès Breton, J. Stadel, K. C. Chambers, M. Archidiacono, T Gasparetto, V. Lindholm, R Farinelli, P.-F Rocci, A da Silva, E. Keihänen, B. Sartoris, G. Castignani, P Vielzeuf, E. Romelli, N. Auricchio, I Sáez-Casares, M. Frailis, V. Scottez, A. Spurio Mancini, P. Bergamini, R Massey, C. Carbone, S. Kermiche, Arthur Loureiro, F Caro, E Sarpa, Sune Toft, O. Mansutti, S. Mei, F Dubath, V. Pettorino, P. B. Lilje, F. Torradeflot, Giulio Fabbian, A.N. Taylor, M. Douspis, S. Serrano, A Veropalumbo, L.A. Popa, S. Contarini, S. Dusini, A Pezzotta, Clare Murray, H.-A Winther, A.M.C Le Brun, Aurel Schneider, Julian Adamek, I Lloro, A. Pourtsidou, C. S. Carvalho, L. Pozzetti, S. Paltani, Y. Akrami, G. De Lucia, F. Atrio‐Barandela, Claudio Moretti, H. M. Courtois, A. Jimenez Mu noz, M. Ezziati, S Pamuk, Yun Wang, S. Tosi, L. Stančo, Francesco Pace, L. Maurin, Gábor Rácz, C. M. Gutiérrez, J.E. Kajava, Alessandra Silvestri, G Maggio, L. Valenziano, A. Cappi, J. Valiviita, H. Dole, M. Tenti, M. Baldi, D. Di Ferdinando, D. Potter, I. Tereno, A. Cimatti, V. Popa, G Congedo, G. Meylan, M. Melchior, F. Vernizzi, P. Hudelot, M. Wiesmann, W. A. Holmes, C. Neissner, C. Padilla, F. Hormuth, J.A. Escartin Vigo, B. Kubik, G Mainetti, Y. Ascasíbar, M. Sereno, G. Testera, J.-C Salvignol, G Verza, J Lesgourgues, A. Mora, A.G. S'anchez, L. Moscardini, P.G Ferreira, Y. Mellier, S.-M Niemi, M. Hailey, G. Ca nas-Herrera, C. A. J. Duncan
article en
5 citations

Abstract

We study the constraint on f ( R ) gravity that can be obtained by photometric primary probes of the Euclid mission. Our focus is the dependence of the constraint on the theoretical modelling of the nonlinear matter power spectrum. In the Hu–Sawicki f ( R ) gravity model, we consider four different predictions for the ratio between the power spectrum in f ( R ) and that in Λ cold dark matter (ΛCDM): a fitting formula, the halo model reaction approach, ReACT , and two emulators based on dark matter only N -body simulations, FORGE and e-Mantis . These predictions are added to the MontePython implementation to predict the angular power spectra for weak lensing (WL), photometric galaxy clustering, and their cross-correlation. By running Markov chain Monte Carlo, we compare constraints on parameters and investigate the bias of the recovered f ( R ) parameter if the data are created by a different model. For the pessimistic setting of WL, one-dimensional bias for the f ( R ) parameter, log 10 | f R 0 |, is found to be 0.5 σ when FORGE is used to create the synthetic data with log 10 | f R 0 | = −5.301 and fitted by e-Mantis . The impact of baryonic physics on WL is studied by using a baryonification emulator, BCemu . For the optimistic setting, the f ( R ) parameter and two main baryonic parameters are well constrained despite the degeneracies among these parameters. However, the difference in the nonlinear dark matter prediction can be compensated for the adjustment of baryonic parameters, and the one-dimensional marginalised constraint on log 10 | f R 0 | is biased. This bias can be avoided in the pessimistic setting at the expense of weaker constraints. For the pessimistic setting, using the ΛCDM synthetic data for WL, we obtain the prior-independent upper limit of log 10 | f R 0 | &lt; −5.6. Finally, we implement a method to include theoretical errors to avoid the bias due to inaccuracies in the nonlinear matter power spectrum prediction.

Astronomy and AstrophysicsVol. 698
National Aeronautics and Space Administration, Alexander von Humboldt-Stiftung, Oak Ridge Associated Universities, California Institute of Technology, University of Portsmouth, UK Research and Innovation, Dipartimenti di Eccellenza, European Space Agency, Bundesministerium für Bildung und Forschung, Magyar Tudományos Akadémia, Agenzia Spaziale Italiana, Max-Planck-Gesellschaft, National Astronomical Observatory of Japan, Agenția Spațială Română, Norsk Romsenter, South East Physics Network, Science and Technology Facilities Council, Fundação para a Ciência e a Tecnologia
Openalex Percentile: Top 7%
Spectroscopy and Laser Applications
3.78
DOIOpen Access PDFOpenAlex
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