Metric/Integrator/Constants
The database of space-time metrics is taken from the Motion4D library. Currently, the following metrics are implemented:
- Minkowski
- Schwarzschild
- Alcubierre
- Barriola-Vilenkin
- Bertotti-Kasner
- Bessel gravitational wave
- Cosmic string
- Ernst
- Extreme Reissner Nordstrom dihole
- Friedman non empty
- Gödel
- Halilsoy wave
- Janis-Newman-Winicour
- Kasner
- Kerr
- Kottler
- Morris-Thorne.
- PetrovTypeD AI-AIII, BI-BII, C
- Reissner-Nordstrom.
- DeSitter
- StraightSpinningString
- Sultana-Dyer black hole
- TaubNUT
- Teo wormhole
Depending on the metric, there will be a list of all parameters. For the Kerr metric, e.g., we can adjust the angular momentum as well as the mass of the black hole.
Implemented integrators:
- Standard Runge-Kutta fourth-order.
- Standard Bulirsch-Stoer.
- Integrators from the GNU Scientific Library (GSL).
Parameters:
The fundamental constants like the speed of light, Newton's gravitational constant or the dielectric permittivity can be given in SI or geometrical units.