Scientists sketch aged star system using over a century of observations
Greenbelt MD (SPX) Mar 15, 2021
Astronomers have painted their best picture yet of an RV Tauri variable, a rare type of stellar binary where two stars - one approaching the end of its life - orbit within a sprawling disk of dust. Their 130-year dataset spans the widest range of light yet collected for one of these systems, from radio to X-rays. "There are only about 300 known RV Tauri variables in the Milky Way galaxy,"
