000151145 001__ 151145
000151145 005__ 20251017144607.0
000151145 0247_ $$2doi$$a10.1093/mnras/stab1911
000151145 0248_ $$2sideral$$a125831
000151145 037__ $$aART-2021-125831
000151145 041__ $$aeng
000151145 100__ $$aAricò G.
000151145 245__ $$aThe BACCO simulation project: A baryonification emulator with neural networks
000151145 260__ $$c2021
000151145 5060_ $$aAccess copy available to the general public$$fUnrestricted
000151145 5203_ $$aWe present a neural network emulator for baryonic effects in the non-linear matter power spectrum. We calibrate this emulator using more than 50 000 measurements in a 15D parameter space, varying cosmology and baryonic physics. Baryonic physics is described through a baryonification algorithm, which has been shown to accurately capture the relevant effects on the power spectrum and bispectrum in state-of-the-art hydrodynamical simulations. Cosmological parameters are sampled using a cosmology-rescaling approach including massive neutrinos and dynamical dark energy. The specific quantity we emulate is the ratio between matter power spectrum with baryons and gravity only, and we estimate the overall precision of the emulator to be 2-3 per cent, at scales k < 5, h, Mpc-1 and redshifts 0 < z < 1.5. We obtain an accuracy of 1-2 per cent, when testing the emulator against a collection of 74 different cosmological hydrodynamical simulations and their respective gravity-only counterparts. We also show that only one baryonic parameter, namely Mc, which sets the gas fraction retained per halo mass, is enough to have accurate predictions of most of the baryonic feedbacks at a given epoch. Our emulator is publicly available at http://www.dipc.org/bacco.
000151145 536__ $$9info:eu-repo/grantAgreement/EC/ERC/716151 /EU/Bias and Clustering Calculations Optimised: Maximising discovery with galaxy surveys/BACCO
000151145 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000151145 590__ $$a5.235$$b2021
000151145 591__ $$aASTRONOMY & ASTROPHYSICS$$b17 / 69 = 0.246$$c2021$$dQ1$$eT1
000151145 592__ $$a1.678$$b2021
000151145 593__ $$aSpace and Planetary Science$$c2021$$dQ1
000151145 593__ $$aAstronomy and Astrophysics$$c2021$$dQ1
000151145 594__ $$a9.6$$b2021
000151145 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000151145 700__ $$aAngulo R.E.
000151145 700__ $$aContreras S.
000151145 700__ $$aOndaro-Mallea L.
000151145 700__ $$aPellejero-Ibañez M.
000151145 700__ $$aZennaro M.
000151145 773__ $$g506, 3 (2021), 4070-4082$$pMon. not. R. Astron. Soc.$$tMonthly notices of the Royal Astronomical Society$$x0035-8711
000151145 8564_ $$s4647793$$uhttps://zaguan.unizar.es/record/151145/files/texto_completo.pdf$$yVersión publicada
000151145 8564_ $$s3173640$$uhttps://zaguan.unizar.es/record/151145/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000151145 909CO $$ooai:zaguan.unizar.es:151145$$particulos$$pdriver
000151145 951__ $$a2025-10-17-14:15:47
000151145 980__ $$aARTICLE