Alexandria 2.31.0
SDC-CH common library for the Euclid project
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CosmologicalParameters.cpp
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1/*
2 * Copyright (C) 2012-2021 Euclid Science Ground Segment
3 *
4 * This library is free software; you can redistribute it and/or modify it under
5 * the terms of the GNU Lesser General Public License as published by the Free
6 * Software Foundation; either version 3.0 of the License, or (at your option)
7 * any later version.
8 *
9 * This library is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12 * details.
13 *
14 * You should have received a copy of the GNU Lesser General Public License
15 * along with this library; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
26
27namespace Euclid {
28namespace PhysicsUtils {
29
30CosmologicalParameters::CosmologicalParameters(double omega_m, double omega_lambda, double hubble_constant)
31 : m_omega_m{omega_m}
32 , m_omega_lambda{omega_lambda}
33 , m_omega_k{1.0 - omega_m - omega_lambda}
34 , m_H_0{hubble_constant} {}
35
37 return m_omega_m;
38}
39
43
45 return m_omega_k;
46}
47
49 return m_H_0;
50}
51
52} // namespace PhysicsUtils
53} // namespace Euclid
CosmologicalParameters(double omega_m=0.3089, double omega_lambda=0.6911, double hubble_constant=67.74)
Constructor taking the cosmologycal parameters.
double getOmegaLambda() const
Get Omega Lambda for the cosmology.
double getHubbleConstant() const
Get the Hubble constant H_0 in (km/s)/Mpc.
double getOmegaM() const
Get Omega matter for the cosmology.
double getOmegaK() const
Get the Omega curvature (computed as 1 - Omega_m - Omega_L) for the cosmology.