On the optical properties of resonant drag instabilities: variability of asymptotic giant branch and R Coronae Borealis stars

• Published in: Monthly notices of the Royal Astronomical Society Vol. 515; no. 4; pp. 4797 - 4809
• Main Authors: Steinwandel, Ulrich P, Kaurov, Alexander A, Hopkins, Philip F, Squire, Jonathan
• Format: Journal Article
• Language: English
• Published: Oxford University Press 13.08.2022
• Subjects: galaxies: formation; Keywords: instabilities; turbulence; stars: winds, outflows; AGB and post-AGB; ISM: kinematics and dynamics

ABSTRACT In dusty cool-star outflow or ejection events around asymptotic giant branch (AGB) or R Coronae Borealis or RCB-like stars, dust is accelerated by radiation from the star and coupled to the gas via collisional drag forces. It has recently been shown that such dust-gas mixtures are unstable...