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Planetary-mass companions to the K-giants BD+15 2940 and HD 233604

Planetary-mass companions to the K-giants BD+15 2940 and HD 233604

We report the discovery of planetary-mass companions to two red giants by the ongoing Penn State - Torun Planet Search (PTPS) conducted with the 9.2-m Hobby-Eberly Telescope. The 1.1 Ms K0-giant, BD+15 2940, has a 1.1 Mj minimum mass companion orbiting the star at a 137.5-day period in a 0.54 …