Submitted to ApJ Preprint typeset using LATEX style emulateapj v. 08/13/06 THE CALIFORNIA PLANET SURVEY I. FOUR NEW GIANT EXOPLANETS1

We present precise Doppler measurements of four stars obtained during the past decade at Keck Observatory by the California Planet Survey (CPS). These stars, namely, HD 34445, HD 126614, HD13931, and Gl 179, all show evidence for a single planet in Keplerian motion. We also present Doppler measurements from the Hobby-Eberly Telescope (HET) for two of the stars, HD34445 and Gl 179, that confirm the Keck detections and significantly refine the orbital parameters. These planets add to the statistical properties of giant planets orbiting near or beyond the ice line, and merit follow-up by astrometry, imaging, and space-borne spectroscopy. Their orbital parameters span wide ranges of planetary minimum mass (M sin i=0.38–1.9MJup), orbital period (P =2.87–11.5yr), semi-major axis (a=2.1–5.2AU), and eccentricity (e=0.02–0.41). HD34445b (P =2.87 yr, M sin i=0.79MJup, e=0.27) is a massive planet orbiting an old, G-type star. We announce a planet, HD126614Ab, and an M dwarf, HD 126614B, orbiting the metal-rich star HD126614 (which we now refer to as HD126614A). The planet, HD 126614Ab, has minimum massM sin i=0.38MJup and orbits the stellar primary with period P =3.41 yr and orbital separation a = 2.3AU. The faint M dwarf companion, HD 126614B, is separated from the stellar primary by 489mas (33AU) and was discovered with direct observation