Astrofísicas: Sistemas de exoplanetas

  • Publicación
    A Novel Method to Constrain Tidal Quality Factor from A Nonsynchronized Exoplanetary System
    We propose a novel method to constrain the tidal quality factor, , from an observed nonsynchronized star–planet system consisting of a slowly rotating low-mass...
  • Publicación
    A Radial Velocity Study of the Planetary System of π Mensae: Improved Planet Parameters for π Mensae c and a Third Planet on a 125 Day Orbit
    π Men hosts a transiting planet detected by the Transiting Exoplanet Survey Satellite space mission and an outer planet in a 5.7 yr orbit discovered by radial...
  • Publicación
    A Shortcut to Calculate SPAM Limb-darkening Coefficients
    We release a new grid of stellar limb-darkening coefficients (LDCs, using the quadratic, power-2 and claret-4 laws) and intensity profiles for the Kepler, U, B...
  • Publicación
    A Super-Earth and Sub-Neptune Transiting the Late-type M Dwarf LP 791-18
    Planets occur most frequently around cool dwarfs, but only a handful of specific examples are known to orbit the latest-type M stars. Using TESS photometry, we...
  • Publicación
    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...
  • Noticia
    CHEOPS detecta inesperadamente un exoplaneta único
    El satélite cazador de exoplanetas CHEOPS de la Agencia Espacial Europea (ESA), en el que participa el Instituto de Astrofísica de Canarias (IAC) entre otras...
  • Publicación
    Company for the Ultra-high Density, Ultra-short Period Sub-Earth GJ 367 b: Discovery of Two Additional Low-mass Planets at 11.5 and 34 Days
    GJ 367 is a bright (V ≈ 10.2) M1 V star that has been recently found to host a transiting ultra-short period sub-Earth on a 7.7 hr orbit. With the aim of...
  • Noticia
    Descubren la danza sincronizada de un sistema de seis planetas
    Una colaboración internacional, en la que participa el Instituto de Astrofísica de Canarias (IAC), halla un sistema planetario de seis exoplanetas que orbitan...
  • Noticia
    Descubren un planeta en formación alrededor de la cercana y joven estrella AU Mic
    Un equipo internacional de científicos, en el que participa el Instituto de Astrofísica de Canarias (IAC), ha descubierto un planeta del tamaño de Neptuno que...