Unprecedented change in the position of four radio sources

Unprecedented change in the position of four radio sources

Astrometric positions of radio-emitting active galactic nuclei (AGNs) can be determined with sub-milliarcsec accuracy using very long baseline interferometry (VLBI). The usually small apparent proper motion of distant extragalactic targets allow us to realize the fundamental celestial reference fram...

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Bibliographic Details
Main Authors: Frey, S. (Author), González, J. (Author), Gulayev, S. (Author), Lambert, S. (Author), Melnikov, A. (Author), Natusch, T. (Author), Shu, F. (Author), Tercero, B. (Author), Titov, O. (Author), Weston, S. (Author), Xia, B. (Author)
Format: Article
Language:English
Published: Oxford University Press 2022
Subjects:
Active galactic nuclei
astrometry
Astrometry
Celestial reference frame
Extragalactic radio sources
Galaxies
Galaxies active
Galaxies jets
galaxies: active
galaxies: jets
Proper motion
Radio astronomy
radio continuum: galaxies
Radio continuum: galaxies
reference systems
Reference systems
Very long baseline interferometry
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