Our knowledge of the populations and occurrence rates of planets orbiting evolved intermediate-mass stars lags behind that for solar-type stars by at least a decade .
Some radial velocity surveys have targeted these low-luminosity giant stars , providing some insights into the properties of their planetary systems .
Here we present the final data release of the Pan-Pacific Planet Search , a 5-year radial velocity survey using the 3.9m Anglo-Australian Telescope .
We present 1293 precise radial velocity measurements for 129 stars , and highlight six potential substellar-mass companions which require additional observations to confirm .
Correcting for the substantial incompleteness in the sample , we estimate the occurrence rate of giant planets orbiting low-luminosity giant stars to be approximately 7.8 ^ { +9.1 } _ { -3.3 } % .
This result is consistent with the frequency of such planets found to orbit main-sequence A-type stars , from which the PPPS stars have evolved .