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 3
... spectrum , has made it certain that such dots represent suns resembling our own , about which we know only that they are suns . Our own Sun with its cortege of planets would be just such another single dot , quite indistinguishable from ...
... spectrum , has made it certain that such dots represent suns resembling our own , about which we know only that they are suns . Our own Sun with its cortege of planets would be just such another single dot , quite indistinguishable from ...
Página 14
... spectrum for everyone in the Galaxy . We concur with these arguments . ( See Section II - 4 . ) Existing radio telescopes are capable of receiving signals from our interstellar neighbors , if of high power or if beamed at us by similar ...
... spectrum for everyone in the Galaxy . We concur with these arguments . ( See Section II - 4 . ) Existing radio telescopes are capable of receiving signals from our interstellar neighbors , if of high power or if beamed at us by similar ...
Página 19
... spectrum to a very high degree and means to search out and identify automatically any spectral anomalies . Since halving the system noise temperature is equivalent to doubling the system sensitivity , it is important in SETI to have the ...
... spectrum to a very high degree and means to search out and identify automatically any spectral anomalies . Since halving the system noise temperature is equivalent to doubling the system sensitivity , it is important in SETI to have the ...
Página 20
... spectrum or a f the power spectrum for any sort of significant pattern such as a sustained peak that may u wly in frequency , a regularly recurring peak , or arrays of regularly spaced peaks , to name but a few . The data rates are so ...
... spectrum or a f the power spectrum for any sort of significant pattern such as a sustained peak that may u wly in frequency , a regularly recurring peak , or arrays of regularly spaced peaks , to name but a few . The data rates are so ...
Página 27
... spectrum into 0.1 Hz channels and of detecting any coherent signal whose power equalled the noise power in this 0.1 Hz bandwidth . At the request of the Ames Interstellar Communication Study Group , the Jet Propulsion Laboratory ...
... spectrum into 0.1 Hz channels and of detecting any coherent signal whose power equalled the noise power in this 0.1 Hz bandwidth . At the request of the Ames Interstellar Communication Study Group , the Jet Propulsion Laboratory ...
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