From Geoscience Australia
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Proper motion of reference radio sources

Created 17/10/2025

Updated 17/10/2025

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The motion of relativistic jets from the active extragalactic nuclei can reach several hundred microseconds per year and mimic proper motion of the distant radio sources observed by VLBI. Such motion of individual quasar is not correlated and its magnitude exceeds the small systematic effects induced by the rotation of the Solar system around the centre of the Galaxy. In this paper we search for the cause of the systematic effect and discuss the results. Conference paper prepared for the "Journees-2007" 17-19 September 2007, France.

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Additional Info

Field Value
Title Proper motion of reference radio sources
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/18c80f4d-1b48-445c-93f7-8ada9c6e6e5e
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 04/08/2025
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        112.0,
        -44.0
      ],
      [
        154.0,
        -44.0
      ],
      [
        154.0,
        -9.0
      ],
      [
        112.0,
        -9.0
      ],
      [
        112.0,
        -44.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Proper motion of reference radio sources". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/proper-motion-of-reference-radio-sources