An Etymological Dictionary of Astronomy and Astrophysics

A → double-lined binary with two
→ white dwarf components. Short-period double white dwarfs can lose → orbital angular momentum by emitting → gravitational radiation and if the total mass of the binary exceeds the → Chandrasekhar limit, their eventual → merger might produce a → Type Ia supernova.

See also: → double; → white; → dwarf.