A planetary system with two transiting mini-Neptunes near the radius valley transition around the bright M dwarf TOI-776

@article{Luque2020APS,
  title={A planetary system with two transiting mini-Neptunes near the radius valley transition around the bright M dwarf TOI-776},
  author={R. Luque and L. Serrano and K. Molaverdikhani and M. C. Nixon and J. Livingston and E. Guenther and E. Pall{\'e} and N. Madhusudhan and G. Nowak and J. Korth and W. Cochran and T. Hirano and P. Chaturvedi and E. Goffo and S. Albrecht and O. Barragan and C. Brice{\~n}o and J. Cabrera and D. Charbonneau and R. Cloutier and K. Collins and K. Col{\'o}n and I. Crossfield and S. Csizmadia and F. Dai and H. Deeg and M. Esposito and M. Fridlund and D. Gandolfi and I. Georgieva and A. Glidden and R. Goeke and S. Grziwa and A. Hatzes and C. Henze and S. Howell and J. Irwin and J. Jenkins and E. Jensen and P. Kabath and R. Kidwell and J. Kielkopf and E. Knudstrup and K. W. F. Lam and D. Latham and J. Lissauer and A. Mann and E. Matthews and I. Mireles and N. Narita and M. Paegert and C. Persson and S. Redfield and G. Ricker and F. Rodler and J. Schlieder and N. Scott and S. Seager and J. Subjak and T. G. Tan and E. Ting and R. Vanderspek and V. Van Eylen and J. Winn and C. Ziegler},
  journal={arXiv: Earth and Planetary Astrophysics},
  year={2020}
}
We report the discovery and characterization of two transiting planets around the bright M1 V star LP 961-53 (TOI-776, J=8.5mag, M=0.54+-0.03Msun) detected during Sector 10 observations of the Transiting Exoplanet Survey Satellite (TESS). Combining them with HARPS radial velocities, as well as ground-based follow-up transit observations from MEarth and LCOGT telescopes, we measured for the inner planet, TOI-776b, a period of 8.25d, a radius of 1.83+-0.11Re, and a mass of 4.66+-0.97Me; and for… Expand
3 Citations
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