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We report initial results of a large radial velocity survey of K dwarfs up toa distance of 50 pc from the Solar System, to look for stellar, brown dwarf,and jovian planets using radial velocities from the CHIRON spectrograph on theCTIO/SMARTS 1.5m telescope. We identify three new exoplanet candidates orbitinghost stars in the K dwarf survey, and confirm a hot Jupiter from TESS orbitingTOI 129. Our techniques are confirmed via five additional known exoplanetorbiting K dwarfs, bringing the number of orbital solutions presented here to9, each hosting an exoplanet candidate with a minimum mass of 0.5--3.0$M_{jup}$. In addition, we provide a list of 186 nearby K dwarfs with nodetected close companions that are ideal for more sensitive searches for lowermass planets. This set of stars is used to determine CHIRON's efficiency,stability, and performance for radial velocity work. For K dwarfs with V =7--12, we reach radial velocity precisions of 5--20 ms$^{-1}$ under a widerange of observing conditions. We demonstrate the stability of CHIRON overhours, weeks, and years using radial velocity standards, and describeinstrumental capabilities and operation modes available for potential users.

The Solar Neighborhood XLIX: Nine Giant Planets Orbiting Nearby K Dwarfs, and the CHIRON Spectrograph's Radial Velocity Performance