The nearby eclipsing stellar system δ Velorum IV . Differential astrometry with VLT / NACO at the 100 microarcsecond level ?

@inproceedings{Kervella2013TheNE,
  title={The nearby eclipsing stellar system δ Velorum IV . Differential astrometry with VLT / NACO at the 100 microarcsecond level ?},
  author={Pierre Kervella and Antoine M{\'e}rand and M. G. Petr-Gotzens and Theodor Pribulla and Fr{\'e}d{\'e}ric Th{\'e}venin},
  year={2013}
}
Context. The stellar system δVel contains the brightest eclipsing binary in the southern sky (δVel A), and a nearby third star located ≈ 0.6′′ away (δVel B). The proximity of δVel B (usable as a reference) makes it a particularly well-suited target to detect the astrometric displacement of the center of light of the eclipsing pair. Aims. We obtained NACO astrometric observations with two goals: 1) to confirm the orientation of the orbital plane of the eclipsing pair on the sky determined by… CONTINUE READING