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Effect of asymmetry of the radio source distribution on the apparent proper...
Information on physical characteristics of astrometric radio sources, such as magnitude and redshift, is of great importance for many astronomical studies. However, data usually... -
Secular aberration drift and IAU definition of International Celestial...
The gravitational attraction of the Galactic Centre leads to the centrifugal acceleration of the Solar system barycentre. It results in secular aberration drift which displaces... -
An Apparent Jump in the Radio Position of J1147+3501
The fundamental celestial reference frame is realized by observations of extragalactic radio sources using the technique of very long baseline interferometry (VLBI). Compact... -
The Second Realization of the International Celestial Reference Frame by...
We present the second realization of the International Celestial Reference Frame (ICRF2) at radio wavelengths using nearly 30 years of Very Long Baseline Interferometry... -
Self-Calibration of wet troposphere delay and clock phase variations for...
The wet tropospheric component and clock phase variations are the most important factors that limit the accuracy of the geodetic VLBI products. These fast fluctuations can be...
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