62 lines
2.0 KiB
C++
62 lines
2.0 KiB
C++
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/*+
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ARES/HADES/BORG Package -- ./libLSS/physics/cosmo_power.hpp
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Copyright (C) 2014-2020 Guilhem Lavaux <guilhem.lavaux@iap.fr>
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Copyright (C) 2009-2020 Jens Jasche <jens.jasche@fysik.su.se>
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Additional contributions from:
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Guilhem Lavaux <guilhem.lavaux@iap.fr> (2023)
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+*/
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#ifndef __ARES_COSMO_POWER_HPP
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#define __ARES_COSMO_POWER_HPP
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#include <CosmoTool/algo.hpp>
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#include <CosmoTool/cosmopower.hpp>
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#include "libLSS/tools/console.hpp"
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#include "libLSS/tools/log_traits.hpp"
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#include "libLSS/mcmc/global_state.hpp"
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#include <boost/format.hpp>
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#include "libLSS/physics/cosmo.hpp"
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#include "libLSS/samplers/core/types_samplers.hpp"
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namespace LibLSS {
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inline void createCosmologicalPowerSpectrum(
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MarkovState &state, CosmologicalParameters &cosmo_params,
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double adjust = 1) {
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double h;
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using CosmoTool::square;
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ConsoleContext<LOG_INFO_SINGLE> ctx("filling cosmological power spectrum");
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CosmoTool::CosmoPower cpower;
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double Rsmooth = 0; // 1.6;
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h = cpower.h = cosmo_params.h;
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cpower.OMEGA_B = cosmo_params.omega_b;
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cpower.OMEGA_C = cosmo_params.omega_m - cosmo_params.omega_b;
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cpower.SIGMA8 = cosmo_params.sigma8;
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cpower.n = cosmo_params.n_s;
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ctx.print(
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boost::format(
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"sigma8 = %g, OmegaB = %g, Omega_C = %g, Omega_M = %g, h = %g") %
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cpower.SIGMA8 % cpower.OMEGA_B % cpower.OMEGA_C % cosmo_params.omega_m %
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h);
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cpower.updateCosmology();
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cpower.setFunction(CosmoTool::CosmoPower::HU_WIGGLES);
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cpower.normalize();
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ArrayType1d::ArrayType &k = *state.get<ArrayType1d>("k_modes")->array;
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ArrayType1d::ArrayType &Pk =
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*state.get<ArrayType1d>("powerspectrum")->array;
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for (long i = 0; i < k.num_elements(); i++) {
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Pk[i] = cpower.power(k[i] * h) * h * h * h * adjust *
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std::exp(-square(k[i] * Rsmooth));
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}
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// Notify that the power spectrum is ready.
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// state.get<ArrayType1d>("powerspectrum")->deferInit.submit_ready();
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}
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} // namespace LibLSS
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#endif
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