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We present the discovery of 7 new planets and 8 planet candidates aroundsubgiant stars, as additions to the known sample of planets around "retired Astars" (Johnson et al. 2006). Among these are the possible first 3-planetsystems around subgiant stars, HD 163607 and HD 4917. Additionally, we presentcalculations of possible transit times, durations, depths, and probabilitiesfor all known planets around subgiant (3 < log g < 4) stars, focused onpossible transits during the TESS mission. While most have transitprobabilities of 1-2%, we find that there are 3 planets with transitprobabilities > 9%.

the astronomical journal

Retired A Stars and Their Companions VIII: 15 New Planetary Signals  Around Subgiants and Transit Parameters for California Planet Search Planets  with Subgiant Hosts