16-18 January 2024
BITP & Zoom
Europe/Kiev timezone

Perturbation equations for Schwarzschild geodesics

16 Jan 2024, 16:45
20m
BITP & Zoom

BITP & Zoom

14b Metrolohichna str., Kyiv, Ukraine & Online
Oral talk Mathematical Physics Afternoon session 1

Speaker

Oleksii Yanchyshen (Bogolyubov Institute for Theoretical Physics)

Description

In our work we consider geodesic equations in Schwarzschild space-time with arbitrary external forces and obtain Gaussian perturbation equations for osculating elements in terms of Weierstrass elliptic functions. As an application, we solve the perturbation equations analytically in linear approximation for forces induced by the presence of the cosmological constant in the Schwarzschild-de Sitter metric, which we compared with a known analytical solution. Also, we solve the perturbation equations for hybrid Schwarzschild/post-Newtonian $2.5$ order self-forces.

Primary author

Oleksii Yanchyshen (Bogolyubov Institute for Theoretical Physics)

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