Optimal wavelength region for communication with extraterrestrial intelligence - Lambda = 1.5 MM

Details Optimal wavelength region for communication with extraterrestrial intelligence - Lambda = 1.5 MM Optimal wavelength region for communication with extraterrestrial intelligence - Lambda = 1.5 MM

Mar 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979natur.278...28k&link_type=abstract

Nature, vol. 278, Mar. 1, 1979, p. 28-30.

Astronomy and Astrophysics

Astronomy

7

Extraterrestrial Communication, Extraterrestrial Intelligence, Extraterrestrial Radio Waves, Millimeter Waves, Project Seti, Radio Astronomy, Microwave Frequencies, Relic Radiation

Scientific paper

This article shows that the best capability and reliability of communication at astronomical distances can be achieved at millimeter wavelengths. The cost of communication, and the number of directions in which signals are sent and searched for are assumed to be fixed. A characteristic frequency might be 203.385 GHz, corresponding to the splitting of the ground state of the lightest atom - positronium - and coinciding with the centroid of the relic background spectrum.

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