A SETI search of nearby solar-type stars at the 203-GHz positronium hyperfine resonance

Details A SETI search of nearby solar-type stars at the 203-GHz positronium hyperfine resonance A SETI search of nearby solar-type stars at the 203-GHz positronium hyperfine resonance

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994icar..107..215s&link_type=abstract

Icarus, vol. 107, p. 215

Physics

1

Project Seti, Stellar Spectra, Hyperfine Structure, Line Spectra, Positronium, Technology Assessment, Fourier Transformation, Millimeter Waves

Scientific paper

Results of observations of 40 solar-type stars and of three regions near the galactic center at frequencies near the 203.385-GHz positronium hyperfine resonance, a potential natural reference frequency, are described. While no artificial signals were detected, an upper limit on potential signal flux density is derived, and approaches for quicker, more sensitive searches are presented.

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