When “Failed Stars” Get a Second Chance: The Strange Lives of Pink, Beige, and Maroon Dwarfs

Brown dwarfs that gain mass can evolve into three distinct objects: beige dwarfs that remain underluminous, maroon dwarfs that behave like ordinary low-mass stars, or pink dwarfs that temporarily experience frozen cores and long luminosity plateaus before reaching the main sequence. Their fate depends on how degenerate the core is when mass transfer occurs. Identifying these rare objects could reveal new details about binary evolution and stellar structure.