Astrophysical: Mini Neptunes

  • Publication
    A Mini-Neptune Orbiting the Metal-poor K Dwarf BD+29 2654

    We report the discovery and Doppler mass measurement of a 7.4 days 2.3 R ⊕ mini-Neptune around a metal-poor K dwarf BD+29 2654 (TOI-2018). Based on a high...

  • Publication
    Characterization of a Set of Small Planets with TESS and CHEOPS and an Analysis of Photometric Performance

    The radius valley carries implications for how the atmospheres of small planets form and evolve, but this feature is visible only with highly precise...

  • Publication
    Near-resonance in a System of Sub-Neptunes from TESS

    We report the Transiting Exoplanet Survey Satellite detection of a multi-planet system orbiting the V = 10.9 K0 dwarf TOI-125. We find evidence for up to five...

  • Publication
    TESS-Keck Survey. V. Twin Sub-Neptunes Transiting the Nearby G Star HD 63935

    We present the discovery of two nearly identically sized sub-Neptune transiting planets orbiting HD 63935, a bright (V = 8.6 mag), Sun-like (T eff = 5560 K)...

  • Publication
    The Multiplanet System TOI-421

    We report the discovery of a warm Neptune and a hot sub-Neptune transiting TOI-421 (BD-14 1137, TIC 94986319), a bright (V = 9.9) G9 dwarf star in a visual...

  • Publication
    The TESS-Keck Survey. XI. Mass Measurements for Four Transiting Sub-Neptunes Orbiting K Dwarf TOI-1246

    Multiplanet systems are valuable arenas for investigating exoplanet architectures and comparing planetary siblings. TOI-1246 is one such system, with a...

  • Publication
    TOI-1749: an M dwarf with a Trio of Planets including a Near-resonant Pair

    We report the discovery of one super-Earth- (TOI-1749b) and two sub-Neptune-sized planets (TOI-1749c and TOI-1749d) transiting an early M dwarf at a distance of...