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\paragraph{}  The authors find that the number of observed eclipsing binaries scales \emph{scales  directly with the input frequency frequency}  of short-period orbits. For example, although typically less than 1\% of eclipsing FG systems show 1.5 mag eclipses, the ratio at the shortest periods is closer to 20\%. The situation is more complex for higher mass sytems although the authors find humps with high probability of deep eclipses at about 2 day and 0.4 day orbital periods. \paragraph{}  A sample figure showing eclipse probabilities for FG stars on the main sequence has been reproduced below: