Sep 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983icar...55..432f&link_type=abstract
Icarus (ISSN 0019-1035), vol. 55, Sept. 1983, p. 432-438. Research supported by the Massachusetts Institute of Technology.
Other
1
Extraterrestrial Communication, G Stars, Milky Way Galaxy, Project Seti, Stellar Spectra, Astronomical Catalogs, Radial Velocity, Stellar Motions, Supernovae
Scientific paper
The SAO Catalog of about 260,000 stars was studied to arrive at a sample of 'sibling', sun-like G-stars whose possible planetary systems' intelligent beings might feel drawn to single out each other for directional listening and broadcasting. A set of mostly untabulated sibling candidate stars can be defined, given a direction and a small solid angle that are mutually interesting to members of that set, so that overlapping broadcast/receiving cones can be selected on the basis of commonality. It is suggested that the double cone about the direction of the galactic center, whose half angle is 1/137 radian, is an almost inevitable choice in which sending and receiving with current technology can reach to about 1 kpsc, yielding an estimated 1000 G-star sibling candidates.
Frisch Dennis
Melia Fulvio
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