Three red giants with substellar-mass companions

We present three giant stars from the ongoing Penn StateTorunacute; Planet Search with the HobbyEberly Telescope, which exhibit radial velocity (RV) variations that point to the presence of planetary-mass companions around them. BD + 49 828 is a M = 1.52 × 0.22 M_O K0 giant with a = - m sin i 1.6+ MJ 0.2 0.4 minimum mass companion in a = 4.2+0.32 ?0.2 AU (2590+300 ?180d), e = 0.35+0.24 ?0.10 orbit. HD 95127, a log L L_O = 2.28 × 0.38, R = 20 × 9 R_O, M = 1.20 × 0.22 M_O K0 giant, has a m sin i = - 5.01+ MJ 0.44 0.61 minimum mass companion in a = 1.28+0.01 ?0.01 AU (482+5 ?5d), e = 0.11+0.15 ?0.06 orbit. Finally, HD 216536 is a M = 1.36 × 0.38 M_O K0 giant with a = - m sin i 1.47+ MJ 0.12 0.20 minimum mass companion in = - a 0.609+0.002 0.002 AU ( - 148.6+0.7 0.7d), e = 0.38+0.12 ?0.10 orbit. Both HD 95127 b and HD 216536 b in their compact orbits are very close to the engulfment zone and hence prone to ingestion in the near future. BD+49 828 b is among the longest-period planets detected with the RV technique until now and it will remain unaffected by stellar evolution up to a very late stage of its host. We discuss general properties of planetary systems around evolved stars and planet survivability using existing data on exoplanets in more detail.