Magnitude.h

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// -*- LSST-C++ -*-
/*
 * This file is part of utils.
 *
 * Developed for the LSST Data Management System.
 * This product includes software developed by the LSST Project
 * (https://www.lsst.org).
 * See the COPYRIGHT file at the top-level directory of this distribution
 * for details of code ownership.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
#ifndef LSST_UTILS_MAGNITUDE_H
#define LSST_UTILS_MAGNITUDE_H
 
#include <cmath>
 
namespace lsst {
namespace utils {
 
const double referenceFlux = 1e23 * pow(10, (48.6 / -2.5)) * 1e9;
 
double nanojanskyToABMagnitude(double flux);
 
double ABMagnitudeToNanojansky(double magnitude);
 
}  // namespace utils
}  // namespace lsst
 
#endif  // LSST_UTILS_MAGNITUDE_H