Mass determinations of the three mini-Neptunes transiting TOI-125
- Nielsen, L. D.
- Gandolfi, D.
- Armstrong, D. J.
- Jenkins, J. S.
- Fridlund, M.
- Santos, N. C.
- Dai, F.
- Adibekyan, V.
- Luque, R.
- Steffen, J. H.
- Esposito, M.
- Meru, F.
- Sabotta, S.
- Bolmont, E.
- Kossakowski, D.
- Otegi, J. F.
- Murgas, F.
- Stalport, M.
- Rodler, F.
- Díaz, M. R.
- Kurtovic, N. T.
- Ricker, G.
- Vanderspek, R.
- Latham, D. W.
- Seager, S.
- Winn, J. N.
- Jenkins, J. M.
- Allart, R.
- Almenara, J. M.
- Barrado, D.
- Barros, S. C. C.
- Bayliss, D.
- Berdiñas, Z. M.
- Boisse, I.
- Bouchy, F.
- Boyd, P.
- Brown, D. J. A.
- Bryant, E. M.
- Burke, C.
- Cochran, W. D.
- Cooke, B. F.
- Demangeon, O. D. S.
- Díaz, R. F.
- Dittman, J.
- Dorn, C.
- Dumusque, X.
- García, R. A.
- González-Cuesta, L.
- Grziwa, S.
- Georgieva, I.
- Guerrero, N.
- Hatzes, A. P.
- Helled, R.
- Henze, C. E.
- Hojjatpanah, S.
- Korth, J.
- Lam, K. W. F.
- Lillo-Box, J.
- Lopez, T. A.
- Livingston, J.
- Mathur, S.
- Mousis, O.
- Narita, N.
- Osborn, H. P.
- Palle, E.
- Rojas, P. A. Peña
- Persson, C. M.
- Quinn, S. N.
- Rauer, H.
- Redfield, S.
- Santerne, A.
- dos Santos, L. A.
- Seidel, J. V.
- Sousa, S. G.
- Ting, E. B.
- Turbet, M.
- Udry, S.
- Vanderburg, A.
- van Eylen, V.
- Vines, J. I.
- Wheatley, P. J.
- Wilson, P. A.
DOIAbstract
International audienceThe Transiting Exoplanet Survey Satellite, TESS, is currently carrying out an all-sky search for small planets transiting bright stars. In the first year of the TESS survey, a steady progress was made in achieving the mission's primary science goal of establishing bulk densities for 50 planets smaller than Neptune. During that year, the TESS's observations were focused on the southern ecliptic hemisphere, resulting in the discovery of three mini-Neptunes orbiting the star TOI-125, a V = 11.0 K0 dwarf. We present intensive HARPS radial velocity observations, yielding precise mass measurements for TOI-125b, TOI-125c, and TOI-125d. TOI-125b has an orbital period of 4.65 d, a radius of 2.726 ± 0.075 RE, a mass of 9.50 ± 0....
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