The Search for Extraterrestrial Intelligence, SETIPhilip Morrison, John Billingham, John Wolfe National Aeronautics and Space Administration, Scientific and Technical Information Office, 1977 - 276 páginas |
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Página 19
... challenges of a SETI . In the Cyclops system concept the received signal was optically transformed into a high - resolution power spectrum . Since 247-831 O 78-3 Suc ale integrated circuit technology has been spectacular . It. 19.
... challenges of a SETI . In the Cyclops system concept the received signal was optically transformed into a high - resolution power spectrum . Since 247-831 O 78-3 Suc ale integrated circuit technology has been spectacular . It. 19.
Página 22
... resolution adopted at its fourth meeting the Science Workshop recommended that that international protection of the water hole against RFI be sought at the 1979 World Administrative Radio Conference . ( See Section III - 9 ...
... resolution adopted at its fourth meeting the Science Workshop recommended that that international protection of the water hole against RFI be sought at the 1979 World Administrative Radio Conference . ( See Section III - 9 ...
Página 28
... resolved ; this must be done before a commitment is made to any large search system . The possibility exists that a combination of ground and space systems would offer advantages not to be found in either alone . Intermediate Steps As ...
... resolved ; this must be done before a commitment is made to any large search system . The possibility exists that a combination of ground and space systems would offer advantages not to be found in either alone . Intermediate Steps As ...
Página 58
... resolution is required , as well as low noise level detectors . A space system for infrared interferometry appears quite promising and is well worth study . An indirect way of detecting planetary systems in the process of formation is ...
... resolution is required , as well as low noise level detectors . A space system for infrared interferometry appears quite promising and is well worth study . An indirect way of detecting planetary systems in the process of formation is ...
Página 59
... resolved . Others are close enough pairs to be detected by velocity variation . Contraction of interstellar gas clouds down to the dimensions of a star leads to excessive rotation , if the gas has preserved angular momentum . Direct ...
... resolved . Others are close enough pairs to be detected by velocity variation . Contraction of interstellar gas clouds down to the dimensions of a star leads to excessive rotation , if the gas has preserved angular momentum . Direct ...
Otras ediciones - Ver todas
The Search for Extraterrestrial Intelligence, SETI Philip Morrison,John Billingham,John Wolfe Vista completa - 1977 |
The Search for Extraterrestrial Intelligence, SETI Philip Morrison,John Billingham,John Wolfe Vista completa - 1977 |
The Search for Extraterrestrial Intelligence, SETI Philip Morrison,John Billingham,John Wolfe Vista completa - 1977 |
Términos y frases comunes
Ames Research Center antenna Arecibo array astrometric bandwidth beam biological capabilities CETI clouds collecting area COMPLEMENTARY DOCUMENT cosmic cost cultural density detection direction distance Earth Earth-based electromagnetic emission energy extraterrestrial civilizations extraterrestrial intelligence factors flux level frequency band galactic Galaxy ground-based hydrogen interstellar communication interstellar medium interstellar search Jesse Greenstein Jet Propulsion Laboratory main sequence maser microwave window NASA noise observations Observatory optimum orbit Philip Morrison planetary systems planets polarization possible present problem Project Cyclops pulsars pulse radar radial velocity radiation radio astronomy radio frequency interference radio telescopes range received resolution satellite Science Workshop scientific search for extraterrestrial search for signals search strategy search system Section sensitivity SETI Program Office SETI system signals from extraterrestrial solar system sources space species spectral type spectrum star formation stellar studies techniques temperature terrestrial transmitters University W/m² water hole wavelength