Astrophysical: Planet hosting stars

  • News
    A giant planet around a tiny star
    An international team of astronomers, including researchers from the Instituto de Astrofísica de Canarias (IAC), the University of Liège and collaborators in UK...
  • Publication
    An Analysis of the Radius Gap in a Sample of Kepler, K2, and TESS Exoplanets Orbiting M-dwarf Stars
    Planetary radii are derived for 218 exoplanets orbiting 161 M dwarf stars. Stellar radii are based on an analysis of APOGEE high-resolution near-IR spectra for...
  • Publication
    Asteroseismology of iota Draconis and Discovery of an Additional Long-period Companion
    Giant stars as known exoplanet hosts are relatively rare due to the potential challenges in acquiring precision radial velocities and the small predicted...
  • News
    IAC discovers a super-Earth in the habitable zone of a nearby red dwarf
    An international team, led by a student from Instituto de Astrofísica de Canarias (IAC), has detected a super-Earth orbiting in the habitable zone of GJ 3998, a...
  • Publication
    Multiband, Multiepoch Photometry of the Spot-crossing System TOI-3884: Refined System Geometry and Spot Properties
    Spot-crossing transits offer a unique opportunity to probe spot properties such as temperature, size, and surface distribution. TOI-3884 is a rare system in...
  • Publication
    Planets Around Solar Twins/Analogs (PASTA). I. High-precision Stellar Chemical Abundances for 17 Planet-hosting Stars and the Condensation Temperature Trend
    The Sun is depleted in refractory elements compared to nearby solar twins, which may be linked to the formation of giant or terrestrial planets. Here we present...
  • Publication
    Revisiting the Li Abundances of Stars with and without Detected Planets from High-resolution Spectroscopy
    Whether the presence of planets affects the lithium (Li) abundance of their host stars is still an open question. To investigate the difference in the Li...
  • Publication
    The Habitability of GJ 357D: Possible Climate and Observability
    The GJ 357 system harbors three planets orbiting a bright, nearby M2.5V star at 9.44 pc. The innermost planet, GJ 357b (TOI-562.01), is a hot transiting Earth...
  • Publication
    TOI-4600 b and c: Two Long-period Giant Planets Orbiting an Early K Dwarf
    We report the discovery and validation of two long-period giant exoplanets orbiting the early K dwarf TOI-4600 (V = 12.6, T = 11.9), first detected using...