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Learn about the R Cor Bor phenomenon through a 22-minute astronomy lecture that explores a groundbreaking model connecting dusty winds to stellar evolution. Discover how deep fading events in stars occur through radiation-driven, dusty winds from molecular hydrogen "snow" clouds orbiting on highly eccentric paths. Examine the mechanics of these eclipses, including their distinctive asymmetry between ingress and egress phases. Understand the process of tidal disruption at periastron, which creates both unbound hydrogen dust streams and partially-bound helium gas debris. Follow the journey of helium as it accretes onto the degenerate core and undergoes triple-alpha burning to form carbon, explaining why these events are specifically observed in hydrogen-deficient, carbon-rich supergiants. Through topics covering solid hydrogen, luminous stars, and tidal effects, gain insights into this fascinating astronomical phenomenon.
