The Search for Extraterrestrial Intelligence, SETIPhilip Morrison, John Billingham, John Wolfe National Aeronautics and Space Administration, Scientific and Technical Information Office, 1977 - 276 páginas |
Dentro del libro
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Página 5
... source thousands of times more powerful than all the energy now at human disposal - is still beyond our ability to pick out at the distance of a nearby star . But our radio technique , only a generation or so old , has now reached such ...
... source thousands of times more powerful than all the energy now at human disposal - is still beyond our ability to pick out at the distance of a nearby star . But our radio technique , only a generation or so old , has now reached such ...
Página 14
... sources rise to great height on either side of this window , making it the quietest part of the spectrum for everyone in the Galaxy . We concur with these arguments . ( See Section II - 4 . ) Existing radio telescopes are capable of ...
... sources rise to great height on either side of this window , making it the quietest part of the spectrum for everyone in the Galaxy . We concur with these arguments . ( See Section II - 4 . ) Existing radio telescopes are capable of ...
Página 19
... sources and may have monochromatic components which are as narrow as the interstellar medium permits . This increases their detectabil- ity at a given radiated power and distinguishes them from the natural background . The hardware ...
... sources and may have monochromatic components which are as narrow as the interstellar medium permits . This increases their detectabil- ity at a given radiated power and distinguishes them from the natural background . The hardware ...
Página 20
... source in this way must not be overlooked . Search Strategies It is not feasible to search for all kinds of signals at all frequencies from all directions to the lowest flux levels at which a known signal of known frequency and ...
... source in this way must not be overlooked . Search Strategies It is not feasible to search for all kinds of signals at all frequencies from all directions to the lowest flux levels at which a known signal of known frequency and ...
Página 43
... sources available for the synthesis of organic compounds under prebiotic conditions were ultraviolet light from the Sun , electric discharges , ionizing radiation , and heat . Most of these have now been used in laboratory simulations ...
... sources available for the synthesis of organic compounds under prebiotic conditions were ultraviolet light from the Sun , electric discharges , ionizing radiation , and heat . Most of these have now been used in laboratory simulations ...
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 astrophysical bandwidth beam capabilities channels clouds collecting area Communication with Extraterrestrial COMPLEMENTARY DOCUMENT cosmic cost density detection direction distance Earth Earth-based electromagnetic emission entire sky evolution extraterrestrial civilizations extraterrestrial intelligence flux level Frank Drake frequency band galactic Galaxy ground-based hydrogen Institute of Technology INTERSTELLAR COMMUNICATION interstellar medium INTERSTELLAR SEARCH SYSTEM Jesse Greenstein Jet Propulsion Laboratory maser microwave window NASA noise observations Observatory optimum orbit Philip Morrison planetary systems planets polarization possible present probes Project Cyclops pulsars pulse radar radiation radio astronomy radio frequency interference radio telescopes range receiver resolution satellite Science Workshop scientific Search for Signals Section SENS sensitivity SETI system signals from extraterrestrial solar system sources space spectral type spectrum star formation stellar strategy structure studies techniques temperature terrestrial transmitting University VLBI W/m² water hole wavelength