Jamila Taaki

IDENTIFIABILITY OF ROTATING STELLAR SURFACES FROM ASTROMETRIC JITTER

Astrometry measures shifts in a star's photocentre and can be used to detect reflex motion due to orbiting exoplanets. Brightness asymmetries (e.g. starspots) rotating in and out of view can also cause apparent motion of the photocenter, termed astrometric jitter, that has previously been considered…