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Parallactic delay for geodetic VLBI and non-orthogonality of the fundamental axes
The Gaia optical astrometric mission has measured the precise positions of millions of objects in the sky, including extragalactic sources also observed by Very Long Baseline... -
VLBI measurement of the secular aberration drift
Aims. While analyzing decades of very long baseline interferometry (VLBI) data, we detected the secular aberration drift of the extragalatic radio source proper motions caused... -
The VLBI Correlator Ambiguity and the Relativistic Group Delay Model
The conventional VLBI relativistic delay model refers to the time epoch when the signal passes one of two stations of an interferometer baseline. Before, 2002, this model was...
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