Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994icar..112..485g&link_type=abstract
Icarus (ISSN 0019-1035), vol. 112, no. 2, p. 485-489
Astronomy and Astrophysics
Astronomy
6
Extraterrestrial Intelligence, Project Seti, Radio Communication, Radio Signals, Hydrogen, Line Spectra, Radio Astronomy, Radio Telescopes
Scientific paper
In 1977 a search for extraterrestrial intelligence (SETI) at Ohio State University (OSU) recorded a strong signal near the 21-cm hydrogen line, which displayed several characteristics that might be expected of a candidate interstellar radio signal. This event was not repeatable with the OSC meridian transit radio telescope but could have been due to an intermittent source, which would be difficult to reobserve with a transit instrument. This article reports a search for the OSU signal using the fully steerable Harvard-Smithsonian 26-m radio telescope, tracking for up to 4 hr at a time to improve the chances of detecting an intermittent source. Despite higher sensitivity and longer cumulative observations, no signals resembling the OSU event were found.
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