Numerical implementation of equations for photon motion in Kerr spacetime

0484945 - ASÚ 2018 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Bursa, Michal
Numerical implementation of equations for photon motion in Kerr spacetime.
Proceedings of RAGtime 17/19: Workshops on black holes and neutron stars. Opava: Silesian University, 2017, s. 7-21. Publications of the Institute of Physics, 8. ISBN 9788075102577. ISSN 2336-5668.
[RAGtime /17.-19./. Opava (CZ), 17.11.2015-19.11.2015]
Grant CEP: GA ČR GB14-37086G; GA MŠMT(CZ) 7E13012; GA MŠMT(CZ) LTAUSA17095
GRANT EU: European Commission(XE) 312789 - STRONGGRAVITY
Institucionální podpora: RVO:67985815
Klíčová slova: Kerr spacetime * raytracing * photon motion
Obor OECD: Astronomy (including astrophysics,space science)
http://proceedings.physics.cz/images/proc17/bur.pdf

Raytracing is one of the essential tools for accurate modeling of spectra and variability of various astrophysical objects. It has a major importance in relativisticenvironments, where light endures to a number of relativistic effects. Because the trajectories of light rays in curved spacetimes, and in Kerr spacetime in particular, are highly non-trivial, we summarize the equations governing the motion of photon
(or any other zero rest mass particle) and give analytic solution of the equations thatcan be further used in practical computer implementations.
Trvalý link: http://hdl.handle.net/11104/0280062