Planetary-Mass Companions to a Retired B star BD+37 3172 and a Retired F Star BD+42 2315

Radial velocity searches may lead to detection of exoplanets at large orbital separations only if long-enough time-series of data are available. Therefore publication of precise measurements collected in the past is very valuable even if not successfully completed with a definitive detection. Here we present 309 precise (σRV≈5-7 m/s) multi-epoch radial velocities for 28 stars observed with the Hobby-Eberly Telescope and its High Resolution Spectrograph between 2004 and 2013. Based on the observations gathered we present a low mass companion to a M=3.75±0.86 M⊙, K giant BD+37 3172 (mpsin i=10.6 MJ in 1887.76±0.01 d, 4.65 au orbit with e=0.59±0.01) and a planetary mass companion to M=1.38±0.30 M⊙, K giant BD+42 2315 (mpsin i=0.55 M in 123.05±0.04 d, 0.55 au orbit with e=0.73±0.03). We also present two preliminary detections of new spectroscopic binaries: BD+56 2957 (K5) and HD 236555 (G5).