Euclid: Modelling massive neutrinos in cosmology – a code comparison
- Adamek, J.
- Angulo, R.E.
- 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, D.F.
- Partmann, C.
- Parimbelli, G.
- Potter, D.
- Schneider, A.
- Schulz, S.
- Smith, R.E.
- Springel, V.
- Stadel, J.
- Tram, T.
- Viel, M.
- Villaescusa-Navarro, F.
- Winther, H.A.
- Wright, B.S.
- Zennaro, M.
- Aghanim, N.
- Amendola, L.
- Auricchio, N.
- Bonino, D.
- Branchini, E.
- Brescia, M.
- Camera, S.
- Capobianco, V.
- Cardone, V.F.
- Carretero, J.
- Castander, F.J.
- Castellano, M.
- Cavuoti, S.
- Cimatti, A.
- Cledassou, R.
- Congedo, G.
- Conversi, L.
- Copin, Y.
- Da Silva, A.
- Degaudenzi, H.
- Douspis, M.
- Dubath, F.
- Duncan, C.A.J.
- 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.V.
- Holmes, W.
- Hornstrup, A.
- Jahnke, K.
- Kermiche, S.
- Kiessling, A.
- Kilbinger, M.
- Kitching, T.
- Kunz, M.
- Kurki-Suonio, H.
- Lilje, P.B.
- Lloro, I.
- Mansutti, O.
- Marggraf, O.
- Marulli, F.
- Massey, R.
- Medinaceli, E.
- Meneghetti, M.
- Meylan, G.
- Moresco, M.
- Moscardini, L.
- Munari, E.
- Niemi, S.-M.
- Padilla, C.
- Paltani, S.
- Pasian, F.
- Pedersen, K.
- Percival, W.J.
- Pettorino, V.
- Polenta, G.
- Poncet, M.
- Popa, L.A.
- 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, J.-L.
- Tallada-Crespí, P.
- Taylor, A.N.
- Tereno, I.
- Toledo-Moreo, R.
- Torradeflot, F.
- Tutusaus, I.
- Valenziano, L.
- Vassallo, T.
- Wang, Y.
- Weller, J.
- Zacchei, A.
- Zamorani, G.
- Zoubian, J.
- Fabbian, G.
- Scottez, V.
DOIAbstract
International audienceThe measurement of the absolute neutrino mass scale from cosmological large-scale 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 w...
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