BlackHoles.hpp

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// -------------------------------------------------------//
//
// SHAMROCK code for hydrodynamics
// Copyright (c) 2021-2026 Timothée David--Cléris <tim.shamrock@proton.me>
// SPDX-License-Identifier: CeCILL Free Software License Agreement v2.1
// Shamrock is licensed under the CeCILL 2.1 License, see LICENSE for more information
//
// -------------------------------------------------------//
 
#pragma once
 
#include "shamunits/Constants.hpp"
 
namespace shamphys {
 
    template<class T>
    inline T schwarzschild_radius(T M, T G, T c) {
        return 2 * G * M / (c * c);
    }
 
    template<class T, class Tu>
    T schwarzschild_radius(T M, const shamunits::UnitSystem<Tu> usys = {}) {
        return schwarzschild_radius(
            M, shamunits::Constants{usys}.G(), shamunits::Constants{usys}.c());
    }
 
} // namespace shamphys