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What happens when a black string is surrounded by dark energy?
Leonardo G. Barbosa, Franciele M. da Silva
June 4, 2026
A charged black string — a cylindrically symmetric cousin of a black hole — is solved exactly when bathed in a quintessence dark-energy fluid and a cloud of strings. The solution reveals how these two exotic ingredients reshape the event horizon, shift the Hawking temperature, and carve out regions where the black string is thermodynamically stable. Photon orbits around the string also change in ways that could affect how such objects would look if they exist.
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