Berlin 2005 – wissenschaftliches Programm
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GR: Gravitation und Relativitätstheorie
GR 16: Klassische ART und Kosmologie
GR 16.3: Vortrag
Dienstag, 8. März 2005, 17:00–17:15, TU BH262
Light deflection in the post-linear gravitational field of bounded point-like masses — •Michael Brügmann and Gerhard Schäfer — Theoretisch-Physikalisches Institut , Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena
The light deflection in the post-linear gravitational field of two bounded point-like masses is treated. Both the light source and the observer are assumed to be located at infinity in an asymptotically flat space. The equations of light propagation are explicitly integrated to the second order in G/c2. The deflection angle takes a particularly simple form for a light ray originally propagating orthogonal to the orbital plane of the binary. It is shown that the expression obtained for the angle of light deflection is fully equivalent to the expression obtained by Kopeikin and Schäfer up to the order given there. Application of the formulae for the deflection angle to the binary pulsar PSR 1534+12 shows that the corrections to the Einstein angle and the Epstein-Shapiro light deflection are of the order 10−2 and 10−7 arcsec respectively.