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Gonz\\'alez Hern\\'andez, Joonas Saario, Jorge Prieto-Arranz, Joshua N. Winn, Juan Cabrera, Judith Korth, Linda Schmidtobreick, Luca Fossati, Malcolm Fridlund, Maria Hjorth, Marshall C. Johnson, Martin P\\\"atzold, Megan Bedell, Michael Endl, Norio Narita, Olga V. Zakhozhay, Oscar Barrag\\'an, Paolo Donati, Pere Blay, Philipp Eigm\\\"uller, Sascha Grziwa, Simon Albrecht, Stefan S. Brems, Szilard Csizmadia, Teruyuki Hirano, Vincent Van Eylen, William D. Cochran","submitted_at":"2017-06-08T12:10:18Z","abstract_excerpt":"HD3167 is a bright (V=8.9 mag) K0V star observed by the NASA's K2 space mission during its Campaign 8. It has been recently found to host two small transiting planets, namely, HD3167b, an ultra short period (0.96 d) super-Earth, and HD3167c, a mini-Neptune on a relatively long-period orbit (29.85 d). Here we present an intensive radial velocity follow-up of HD3167 performed with the FIES@NOT, HARPS@ESO-3.6m, and HARPS-N@TNG spectrographs. 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