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PT6 - Dynamics of extended test objects -- equations of motion and their solution

Speaker

Schee, Jan

Coauthors

Zdenek Stuchlik

Talk Title

Ghost Images in Bardeen and ABG spacetimes

Abstract

In this contribution we present our study of bending of null geodesics in the regular spacetimes, particularly in Bardeen and Ayon-Beato-Garcia (ABG) no-horizon spacetimes. We show that thanks to "flatness" of these spacetimes in the central region there exist interesting optical phenomena related to photons traveling through such gravitational field with small impact parameters. There exist a critical impact parameter which gives maximal deflection of light in Bardeen no-horizon spacetimes. We discuss "ghost" direct and indirect images of Keplerian discs which are generated by photons with small impact parameters.

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