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Found 1 swedish dissertation matching the above criteria.

2. 1. The Gaia reference frame amid quasar variability and proper motion patterns in the data

   Author : Rajesh Kumar Bachchan; Astronomi - Genomgår omorganisation; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : The astrometric satellite Gaia was launched in December, 2013. It will observe nearly one billion stars in the Milky Way and beyond along with many extragalactic objects such as quasars and galaxies. The analysis of quasar data will provide the optical counterpart of the International Celestial Reference Frame (ICRF). READ MORE