The Search for signals of technological activities in the galaxy

Details The Search for signals of technological activities in the galaxy The Search for signals of technological activities in the galaxy

2010-12-12

arxiv.org/abs/1012.2587v1

in Guillermo A. Lemarchand and Gonzalo Tancredi, Editors; Astrobiolog\'ia: Del Big Bang a las Civilizaciones; T\'opicos Especi

Astronomy and Astrophysics

Astrophysics

Instrumentation and Methods for Astrophysics

In Spanish, 30 pages, 8 figures, 3 tables, UNESCO, ICTP, TWAS, Second Iberoamerican School on Astrobiology, Montevideo, Septem

Scientific paper

In this article an analysis of the fundamentals used to search for extraterrestrial artificial signals in the galaxy, which have been developing for more than five decades, is presented. It is shown that the key factor for the success of these research projects is given by the technological civilizations lifetimes. Assuming the Principle of Mediocrity, estimations are made to determine the minimum number of civilizations that may co-exist in the galaxy and the probability of detecting a signal from them.

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