Stellar and substellar companions from Gaia EDR3 – Proper motion anomaly and resolved common proper motion pairs

Pierre Kervella, Frédéric Arenou, Frédéric Thévenin
Astronomy & Astrophysics, 2021, in press, doi:10.1051/0004-6361/202142146, arXiv:2109:10912

Left panel: detection of the planet Epsilon Eridani b from its effect on the proper motion of its parent star (proper motion anomaly).
Right panel: identification of a common proper motion companion of the pulsating red giant star L2 Puppis, that is likely gravitationally bound.

These catalogs will soon be available at the Centre de Données Astronomiques de Strasbourg (CDS) through the VizieR service.