Explore an 18-minute astronomy lecture examining V Hydrae (V Hya), a fascinating asymptotic giant branch (AGB) star system transitioning to a pre-planetary nebula phase. Learn about groundbreaking research combining optical spectroscopic monitoring and mid-infrared interferometry that confirms the presence of a nearby stellar companion. Discover how visual obscuration events occurring every 17 years correlate with orbital motion, caused by a dust clump traveling with the companion star. Examine detailed spatio-kinematic modeling of a conical jet connected to the companion, providing insights into the system's gas and dust distribution. Connect orbital-scale characteristics with large-scale observations to understand how close binary companions play a crucial role in shaping bipolar pre-planetary nebulae.
Overview
Syllabus
ACES V Hydrae: a dusty AGB binary with a jet - Lea Planquart (Universite Libre de Bruxelles,Belgium)
Taught by
MonashPhysicsAndAstronomy
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