Astrofísicas: Atmósferas de exoplanetas

  • Publicación
    A Multiwavelength Look at the GJ 9827 System: No Evidence of Extended Atmospheres in GJ 9827b and d from HST and CARMENES Data

    GJ 9827 is a bright star hosting a planetary system with three transiting planets. As a multiplanet system with planets that sprawl within the boundaries of the...

  • Publicación
    A Near-infrared Chemical Inventory of the Atmosphere of 55 Cancri e

    We present high-resolution near-infrared spectra taken during eight transits of 55 Cancri e, a nearby low-density super-Earth with a short orbital period (<18...

  • Publicación
    ARES. V. No Evidence For Molecular Absorption in the HST WFC3 Spectrum of GJ 1132 b

    We present a study on the spatially scanned spectroscopic observations of the transit of GJ 1132 b, a warm (∼500 K) super-Earth (1.13 R⊕) that was obtained with...

  • Noticia
    Descubren una supertierra que servirá para probar los modelos atmosféricos planetarios

    Durante los últimos 25 años, los astrónomos han descubierto una gran variedad de exoplanetas compuestos de roca, hielo y gas debido a la puesta en operación de...

  • Publicación
    Detection of Carbon Monoxide in the Atmosphere of WASP-39b Applying Standard Cross-correlation Techniques to JWST NIRSpec G395H Data

    Carbon monoxide was recently reported in the atmosphere of the hot Jupiter WASP-39b using the NIRSpec PRISM transit observation of this planet, collected as...

  • Publicación
    Detection of Carbon Monoxide's 4.6 Micron Fundamental Band Structure in WASP-39b's Atmosphere with JWST NIRSpec G395H

    Carbon monoxide (CO) is predicted to be the dominant carbon-bearing molecule in giant planet atmospheres and, along with water, is important for discerning the...

  • Publicación
    Detection of Ionized Calcium in the Atmosphere of the Ultra-hot Jupiter KELT-9b

    With a dayside temperature in excess of 4500 K, comparable to a mid-K-type star, KELT-9b is the hottest planet known. Its extreme temperature makes KELT-9b a...

  • Publicación
    Detection of Na and K in the Atmosphere of the Hot Jupiter HAT-P-1b with P200/DBSP

    We present a new optical transmission spectrum of the hot Jupiter HAT-P-1b based on two transits observed with the Double Spectrograph (DBSP) on the Palomar 200...

  • Noticia
    El elemento más pesado detectado hasta ahora en la atmósfera de un exoplaneta

    Un equipo científico internacional, en el que participa personal investigador del Instituto de Astrofísica de Canarias (IAC), ha descubierto el elemento más...