Asteroid search leakage radiation and SETI

Details Asteroid search leakage radiation and SETI Asteroid search leakage radiation and SETI

Jun 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996spie.2704..155h&link_type=abstract

Proc. SPIE Vol. 2704, p. 155-160, The Search for Extraterrestrial Intelligence (SETI) in the Optical Spectrum II, Stuart A. King

Astronomy and Astrophysics

Astrophysics

Scientific paper

Astrophysicists tell us that planetary systems are a byproduct of stellar evolution. This paper reviews the hazard human civilization faces from comet or asteroid collisions with the Earth, then makes the speculation that any ETI civilization evolving on any habitable planet would face the same sort of hazard from its star's residual protoplanetary debris. When the putative ETI civilization progresses to an active search strategy, radar and/or lidar signals used can result in a form of electromagnetic leakage radiation. Thus, the SETI programs of various radio and optical astronomers should evaluate the detection probabilities for signatures of the transient lidar or radar beams likely to result from an ETI civilization's active debris search technology.

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