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Lee Rosenthal The California Legacy Survey Population Statistics With an Expanded Catalog

2020-12-14 0 5 Vimeo

The California Planet Search team has been conducting a radial velocity survey of over 700 nearby F/G/K/M stars for the past three decades, using the Keck-HIRES, Lick-Hamilton, and APF-Levy spectrographs. Our team has collected more than 50,000 observations, using almost three years of open shutter time. We describe a systematic search for periodic signals and long-term trends in our dataset, and a scheme for validating signals as confirmed planets. We present a catalog of over 170 validated exoplanets found in our survey, including more than a dozen new discoveries. These newfound exoplanets range from sub-Neptunes within 0.2 AU of their host stars, to eccentric gas giants beyond 10 AU. We highlight some of the newly discovered systems, and use the catalog to explore how planet occurrence depends on stellar and planetary properties, such as host-star metallicity and orbital eccentricity.

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