drake {extraterrestrial}

The Drake Equation (1961)

Description

The classical Drake 1961 equation.

Usage

drake(R, fp, Ne, fl, fi, fc, L)

Arguments

R

the star formation rate.

fp

the fraction of stars with planetary systems.

Ne

the number of habitable planets in a planetary system.

fl

the fraction of the habitable planets that developed life.

fi

the fraction of planets with life form that developed intelligence.

fc

the fraction of civilizations that perform interstellar communications.

L

length of time for civilizations to transmit detectable signals in space.

Value

N the Drake Number. The number of civilizations in the galaxy that communicates.

References

Antonio, J., & Molina, M. (2019). Searching for a standard Drake equation. Journal of the British Interplanetary Society (JBIS) (Vol. 72).

Examples

drake(R=2, fp=.45, Ne=0.5, fl=0.2, fi=0.05, fc=0.5, L=500 )