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astro-ph.IM2026
Optical Flashes from Beam-Driven Light Sails with the Roman, Rubin and Euclid Observatories
James Guillochon, Abraham Loeb
The primary challenge of rocket propulsion is the burden of accelerating the spacecraft's own fuel. Light sails leave the propellant at home, with the achievable speed set by the s…
astro-ph.HE2026
A Self-Sustaining Black Hole Engine Powered by the Tidal Disruptions of Stars
James Guillochon, Avi Loeb
Tidal disruption events (TDEs) strongly prefer host galaxies undergoing, or recovering from, a burst of star formation, implying that a rare minority of galaxy types produces most…