On the detectability of several varieties of low-energy starships

Details On the detectability of several varieties of low-energy starships On the detectability of several varieties of low-energy starships

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994jbis...47...17m&link_type=abstract

British Interplanetary Society, Journal (ISSN 0007-094X), vol. 47, no. 1, p. 17-18

Physics

1

Detection, Infrared Radiation, Interstellar Spacecraft, Project Seti, Exhaust Emission, Infrared Telescopes, Matter-Antimatter Propulsion, Particle Energy

Scientific paper

Three hypothetical starship designs - a cruising world ship emitting reradiated infrared, a laser ramjet powered by a 10.6 micrometer laser beamed from the home solar system, and a beamed microwave sailer - are analyzed for detection at a 10 light-year distance. Although an Arecibo-sized infrared telescope, possibly on the Moon's far side, is necessary to detect the infrared emitting or reflecting spacecraft, an extraterrestrial microwave sailer could conceivably be serendipitously discovered by much more modest terrestrial receiving equipment.

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