The first measurement of the Galactic aberration by the VLBI

Details The first measurement of the Galactic aberration by the VLBI The first measurement of the Galactic aberration by the VLBI

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011sf2a.conf..659l&link_type=abstract

SF2A-2011: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: G. Alecian, K. Belkacem,

Astronomy and Astrophysics

Astrophysics

Astrometry, Techniques: Interferometric, Galaxies: Radio Sources, Galaxies: Active

Scientific paper

This paper reports on the detection of the Galactic aberration in astrometric measurements of quasar positions by very long baseline radio interferometry (VLBI). The Galactic aberration effect shows up as a dipole component in the quasar proper motion field, oriented towards the Galactic center. The dipole amplitude is in good agreement with theoretical predictions.

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