Physics
Scientific paper
Mar 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977jbis...30..112f&link_type=abstract
British Interplanetary Society, Journal (Interstellar Studies), vol. 30, Mar. 1977, p. 112, 113.
Physics
1
Interstellar Communication, Neutron Stars, Signal Transmission, X Ray Sources, Binary Stars, Extraterrestrial Life, Gravitational Effects, Pulsed Radiation, Signal Reception
Scientific paper
It is shown in a rough calculation that a chunk of rock about 1 km in size and of mass 10 to the 13th power kg dropped onto a neutron star could produce an X-ray pulse of about 10 to the 36th power ergs, strong enough to be detectable throughout the Galaxy. An advanced civilization with mobility over a region a few parsecs in size may therefore be able to transmit a crude broadband and omnidirectional X-ray signal. Modulating the X-ray luminosity of an X-ray source may also be possible with the aid of an orbiting metal screen about one million km in size.
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