Where is the Habitable Zone located relative to a White Dwarf remnant?
Answer
Very close to the remnant core because white dwarfs are much colder.
Computer simulations suggest that white dwarfs, the remnants of stars like the Sun, might host habitable exoplanets, altering previous dismissals of dead stars as targets. Since white dwarfs are significantly colder than main-sequence stars, their Habitable Zone (HZ) must contract considerably, positioning it very close to the stellar remnant core. While a rocky planet in this region would likely be tidally locked, the simulations indicate that fast rotation could facilitate atmospheric heat circulation, potentially maintaining temperatures above freezing and preserving liquid water on the surface.
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