The Search for Extraterrestrial Intelligence (SETI)

Details The Search for Extraterrestrial Intelligence (SETI) The Search for Extraterrestrial Intelligence (SETI)

Jul 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999iraj...26...87k&link_type=abstract

Irish Astronomical Journal, 1999 (July), 26(2), 87

Astronomy and Astrophysics

Astronomy

1

Scientific paper

A brief review is presented of the hypotheses inherent in searches for extraterrestrial intelligence (SETI). Some of the problems associated with such work at radio wavelengths are discussed, such as the optimal choice of a search frequency. It is shown that pulsed laser signals sent from an extraterrestrial civilisation should be observed to be brighter than the parent star, even when conservative estimates are adopted for the laser energy generation and detector time resolution. This is still the case when the energy output from the parent star is summed over all wavelengths. As a result, optical SETI programmes may be more attractive than their radio counterparts.

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