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Euclid: modelling massive neutrinos in cosmology - a code comparison

Title:	Euclid: modelling massive neutrinos in cosmology - a code comparison
Authors:	Adamek, J; Angulo, RE; Arnold, C; Baldi, M; Biagetti, M; Bose, B; Carbone, C; Castro, T; Dakin, J; Dolag, K; Elbers, W; Fidler, C; Giocoli, C; Hannestad, S; Hassani, F; Hernández-Aguayo, C; Koyama, K; Li, B; Mauland, R; Monaco, P; Moretti, C; Mota, DF; Partmann, C; Parimbelli, G; Potter, D; Schneider, A; Schulz, S; Smith, RE; Springel; Stadel, J; Tram, T; Viel, M; Villaescusa-Navarro, F; Winther, HA; Wright, BS; Zennaro, M; Aghanim, N; Amendola, L; Auricchio, N; Bonino, D; Branchini, E; Brescia, M; Camera, S; Capobianco, V; Cardone, VF; Carretero, J; Castander, FJ; Castellano, M; Cavuoti, S; Cimatti, A; Cledassou, R; Congedo, G; Conversi, L; Copin, Y; Da Silva, A; Degaudenzi, H; Douspis, M; Dubath, F; Duncan, CAJ; Dupac, X; Dusini, S; Farrens, S; Ferriol, S; Fosalba, P; Frailis, M; Franceschi, E; Galeotta, S; Garilli, B; Gillard, W; Gillis, B; Grazian, A; Haugan, S; Holmes, W; Hornstrup, A; Jahnke, K; Kermiche, S; Kiessling, A; Kilbinger, M; Kitching, T; Kunz, M; Kurki-Suonio, H; Lilje, PB; Lloro, I; Mansutti, O; Marggraf, O; Marulli, F; Massey, R; Medinaceli, E; Meneghetti, M; Meylan, G; Moresco, M; Moscardini, L; Munari, E; Niemi, SM; Padilla, C; Paltani, S; Pasian, F; Pedersen, K; Percival, WJ; Pettorino, V; Polenta, G; Poncet, M; Popa, LA; Raison, F; Rebolo, R; Renzi, A; Rhodes, J; Riccio, G; Romelli, E; Roncarelli, M; Saglia, R; Sapone, D; Sartoris, B; Schneider, P; Schrabback, T; Secroun, A; Seidel, G; Sirignano, C; Sirri, G; Stanco, L; Starck, JL; Tallada-Crespí, P; Taylor, AN; Tereno, I; Toledo-Moreo, R; Torradeflot, F; Tutusaus; Valenziano, L; Vassallo, T; Wang, Y; Weller, J; Zacchei, A; Zamorani, G; Zoubian, J; Fabbian, G; Scottez
Contributors:	Adamek, J; Angulo, RE; Arnold, C; Baldi, M; Biagetti, M; Bose, B; Carbone, C; Castro, T; Dakin, J; Dolag, K; Elbers, W; Fidler, C; Giocoli, C; Hannestad, S; Hassani, F; Hernández-Aguayo, C; Koyama, K; Li, B; Mauland, R; Monaco, P; Moretti, C; Mota, DF; Partmann, C; Parimbelli, G; Potter, D; Schneider, A; Schulz, S; Smith, RE; Springel; Stadel, J; Tram, T; Viel, M; Villaescusa-Navarro, F; Winther, HA; Wright, BS; Zennaro, M; Aghanim, N; Amendola, L; Auricchio, N; Bonino, D; Branchini, E; Brescia, M; Camera, S; Capobianco, V; Cardone, VF; Carretero, J; Castander, FJ; Castellano, M; Cavuoti, S; Cimatti, A; Cledassou, R; Congedo, G; Conversi, L; Copin, Y; Da Silva, A; Degaudenzi, H; Douspis, M; Dubath, F; Duncan, CAJ; Dupac, X; Dusini, S; Farrens, S; Ferriol, S; Fosalba, P; Frailis, M; Franceschi, E; Galeotta, S; Garilli, B; Gillard, W; Gillis, B; Grazian, A; Haugan, S; Holmes, W; Hornstrup, A; Jahnke, K; Kermiche, S; Kiessling, A; Kilbinger, M; Kitching, T; Kunz, M; Kurki-Suonio, H; Lilje, PB; Lloro, I; Mansutti, O; Marggraf, O; Marulli, F; Massey, R; Medinaceli, E; Meneghetti, M; Meylan, G; Moresco, M; Moscardini, L; Munari, E; Niemi, SM; Padilla, C; Paltani, S; Pasian, F; Pedersen, K; Percival, WJ; Pettorino, V
Publication Year:	2023
Collection:	IRIS Università degli Studi di Bologna (CRIS - Current Research Information System)
Subject Terms:	cosmological neutrino; cosmological simulation; neutrino masses from cosmol-ogy; power spectrum
Description:	The measurement of the absolute neutrino mass scale from cosmological largescale clustering data is one of the key science goals of the Euclid mission. Such a measurement relies on precise modelling of the impact of neutrinos on structure formation, which can be studied with N-body simulations. Here we present the results from a major code comparison effort to establish the maturity and reliability of numerical methods for treating massive neutrinos. The comparison includes eleven full N-body implementations (not all of them independent), two N-body schemes with approximate time integration, and four additional codes that directly predict or emulate the matter power spectrum. Using a common set of initial data we quantify the relative agreement on the nonlinear power spectrum of cold dark matter and baryons and, for the N-body codes, also the relative agreement on the bispectrum, halo mass function, and halo bias. We find that the different numerical implementations produce fully consistent results. We can therefore be confident that we can model the impact of massive neutrinos at the sub-percent level in the most common summary statistics. We also provide a code validation pipeline for future reference.
Document Type:	article in journal/newspaper
File Description:	ELETTRONICO
Language:	English
Relation:	info:eu-repo/semantics/altIdentifier/wos/WOS:001064004200002; volume:2023; issue:6; firstpage:1; lastpage:50; numberofpages:50; journal:JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS; https://hdl.handle.net/11585/951892
DOI:	10.1088/1475-7516/2023/06/035
Availability:	https://hdl.handle.net/11585/951892; https://doi.org/10.1088/1475-7516/2023/06/035; https://iopscience.iop.org/article/10.1088/1475-7516/2023/06/035
Rights:	info:eu-repo/semantics/openAccess
Accession Number:	edsbas.DB8B9EAC
Database:	BASE