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Hojjatpanah, S. R. Walker, S. Udry, T. M. Louden, V. Adibekyan, X. Dumusque","submitted_at":"2016-05-13T19:13:41Z","abstract_excerpt":"We report the discovery of the exoplanet K2-110 b (previously EPIC212521166b) from K2 photometry orbiting in a 13.8637d period around an old, metal-poor K3 dwarf star. With a V-band magnitude of 11.9, K2-110 is particularly amenable to RV follow-up. A joint analysis of K2 photometry and high-precision RVs from 28 HARPS and HARPS-N spectra reveal it to have a radius of 2.6$\\pm 0.1 R_{\\oplus}$ and a mass of 16.7$\\pm 3.2$~M$_{\\oplus}$, hence a density of $5.2\\pm1.2$ g.cm$^{-3}$, making it one of the most massive planets yet to be found with a sub-Neptune radius. 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Cameron, A. Santerne, C. Lovis, D. Barrado, D. Bayliss, D. Charbonneau, D. J. A. Brown, D. J. Armstrong, D. Latham, D. Pollacco, E. Delgado Mena, E. Molinari, F. Bouchy, G. H\\'ebrard, G. W. King, H. P. Osborn, I. Boisse, J. Kirk, J. Lillo-Box, J.M. Almenara, J. McCormac, K. W. F. Lam, L. Malavolta, M. Deleuil, M. Marmier, N. C. Santos, O. Demangeon, R.F. D\\'iaz, S. C. C. Barros, S. G. Sousa, S. Hojjatpanah, S. R. Walker, S. Udry, T. M. Louden, V. Adibekyan, X. Dumusque","submitted_at":"2016-05-13T19:13:41Z","abstract_excerpt":"We report the discovery of the exoplanet K2-110 b (previously EPIC212521166b) from K2 photometry orbiting in a 13.8637d period around an old, metal-poor K3 dwarf star. With a V-band magnitude of 11.9, K2-110 is particularly amenable to RV follow-up. 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