Line data    Source code

       1           0 : // Distributed under the MIT License.
       2             : // See LICENSE.txt for details.
       3             : 
       4             : #pragma once
       5             : 
       6             : #include <array>
       7             : #include <cstddef>
       8             : #include <string>
       9             : #include <vector>
      10             : 
      11             : #include "DataStructures/DataVector.hpp"
      12             : 
      13             : /*!
      14             :  * \brief Functionality for evolving a ringdown following a compact-binary
      15             :  * merger.
      16             :  */
      17           1 : namespace evolution::Ringdown {
      18             : /*!
      19             :  * \brief Transform `Strahlkorper` coefs to ringdown distorted frame.
      20             :  *
      21             :  * \details Reads Strahlkorper coefficients (assumed to be in the inertial
      22             :  * frame) from a file, then transforms them into the
      23             :  * ringdown distorted frame defined by the expansion and rotation maps
      24             :  * specified by `exp_func_and_2_derivs`, `exp_outer_bdry_func_and_2_derivs`,
      25             :  * and `rot_func_and_2_derivs`, which correspond to the ringdown frame's
      26             :  * expansion and rotation maps at the time given by `match_time`, and by
      27             :  * `settling_timescale`, the timescale for the maps to settle to constant
      28             :  * values. Only Strahlkorpers within `requested_number_of_times_from_end` times
      29             :  * from the final time are returned. This function is used to transition
      30             :  * from inspiral to ringdown; in this case, the inertial-frame Strahlkorper
      31             :  * is the common apparent horizon from a binary-black-hole inspiral;
      32             :  * the ringdown-distorted-frame coefficients are used to initialize
      33             :  * the shape map for the ringdown domain.
      34             :  */
      35           1 : std::vector<DataVector> strahlkorper_coefs_in_ringdown_distorted_frame(
      36             :     const std::string& path_to_horizons_h5,
      37             :     const std::string& surface_subfile_name,
      38             :     size_t requested_number_of_times_from_end, double match_time,
      39             :     double settling_timescale,
      40             :     const std::array<double, 3>& exp_func_and_2_derivs,
      41             :     const std::array<double, 3>& exp_outer_bdry_func_and_2_derivs,
      42             :     const std::array<std::array<double, 4>, 3>& rot_func_and_2_derivs);
      43             : }  // namespace evolution::Ringdown