2009/11/11 by S. A. Klioner, Sergei A. Klioner, Klioner, Sergei A. +2
Computer Science · Engineering · Physics and Astronomy · #Advanced Measurement and Metrology Techniques #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Geophysics and Sensor Technology #Optical measurement and interference techniques #astro-ph.GA
paper · pdf · doi:10.48550/arxiv.0911.2170
7 pages, no figures, report for astrometric mission Gaia
openalex publication_date 2009/11/11 · arxiv created 2009/11/13 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In [2] we have seen that among the post-post-Newtonian terms in the light deflection formulas there are "enhanced" ones that may become much larger than the other post-post-Newtonian terms. It is demonstrated here that these "enhanced" terms result from an inadequate choice of the impact parameter. Introducing another impact parameter, that can be considered as coordinate-independent, we demonstrate that all "enhanced" terms disappear from the formulas.