Copyright © Klaus Piontzik Claude Bärtels

8.4 - Technological Civilizations

The
number
In the further course of this paper, Equation 8.4.2 is therefore referred to as the " General Basic Model".Strictly speaking, the probabilities F _{ph}, F_{gae},
F_{Liz} would have to be determined individually
for each spectral class.. Since this is not yet possible
today and in the near future, however, a rough
calculation or maximum estimate can be achieved by
assuming, in an initial approach, the same or similar
distributions.Assuming that non-sunlike stars also have an equal or similar distribution for technological civilizations, one can make a rough estimate of how many systems with habitable "Earths 2" that carry civilizations could exist.
The
number
Inserting all values (F _{e} = 0.01) into equation
8.4.4:N _{zexGal2} = (100-300)·10^{9} ·
1:4200 · 1:691 · 1:1001N_{zexGal2}
= 35 – 104 technological civilizationsThe two results can then be summarized to the following statement:
The
probability of finding an Earth-like planet with a
technological civilization is then:
F |

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