Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980toky.iafcq....s&link_type=abstract
International Astronautical Federation, International Astronautical Congress, 31st, Tokyo, Japan, Sept. 22-28, 1980, 13 p.
Astronomy and Astrophysics
Astronomy
Communication Networks, Extraterrestrial Communication, Extraterrestrial Intelligence, Optical Data Processing, Electromagnetic Spectra, Infrared Astronomy, Neutrinos, Onboard Data Processing, Optical Communication, Signal Processing, Signal Reception, Signal Transmission, Stellar Atmospheres, Ultraviolet Astronomy
Scientific paper
Possible and unlikely means of detecting and communicating with extraterrestrial intelligence without making use of the microwave region of the electromagnetic spectrum are surveyed. Attention is given to techniques requiring the transmission and/or reception of waves and particles, including laser signalling in the visible, UV or IR, millimeter wave signalling, X-ray and gamma-ray communication, gravitational wave communication, neutrino communication, high-energy particle communication, tachyon communication and the monitoring of the normal electromagnetic emissions of a civilization in a broad spectral range. Also presented are artifact methods, such as Bracewell-type radio-relay probes and passive artifacts, astrophysical methods, including the use of isotopic markers in stellar atmospheres, the modulation of waste IR radiation and the imitation of unexplainable cosmic phenomena, and biological methods, such as the dispersal of messages coded in genetic material.
Paprotny Zbigniew
Subotowicz M.
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