Spectroscopic classification of a complete sample of astrometrically-selected quasar candidates using Gaia DR2

K. E. Heintz, J. P. U. Fynbo, S. J. Geier +20

Here we explore the efficiency and fidelity of a purely astrometric selection of quasars as point sources with zero proper motions in the {\it Gaia} data release 2 (DR2). We have b…