Lines of research: Exoplanetary Systems & Solar System (SEYSS)

Exoplanetary Systems & Solar System (SEYSS)

The area of planetary and solar systems involves several research groups working on Exoplanets, Solar System and Cultural Astronomy. Our main objectives are:

  • The detection and characterization of giant and rocky planets around nearby stars using the most advanced instruments (CARMENES, ESPRESSO, HARPS Norte y Sur, SONG, LCO, MUSCAT2) and space missions (CoRoT, Kepler K2, CHEOPS, TESS and PLATO). The group is particularly interested in the study of terrestrial planets in the habitable zone of their host stars where water can be in liquid form.
  • The characterization of the atmospheres of planets to know their structure and composition, both by transits and direct imaging, using ground-based telescopes such as GTC and space missions such as CHEOPS.
  • Investigate the formation of exoplanet systems by studying the chemical composition of planet host stars, and the dynamical evolution of exoplanets at their early stages of formation.
  • Study the physical properties of different families of minor bodies of the Solar System (asteroids, comets, trans-neptunian objects, etc.) to understand the origin and evolution of Solar System with GTC and space missions such as OSIRIS-REx.
  • The study of ancient cosmologies through cultural astronomy and the defense of cultural heritage through the astronomy.
  • Publication
    Book Review: Archeoastronomia: Un Dibattito tra Archaeologi ed Astronomi alla Ricerca di un Metodo Comune
    Not Available
  • Publication
    Book Review: The Archaeotopography of Egypt
    Review of the book : Architecture, Astronomy and Sacred Landscape in Ancient Egypt. Giulio Magli (Cambridge University Press, Cambridge, 2013). Pp. xii + 272....
  • Publication
    Borderline hyperbolic comet C/2021 O3 (PANSTARRS) was fading as it approached the Sun
    We present an observational and numerical study of the borderline hyperbolic comet C/2021 O3 (PANSTARRS) performed during its recent passage through the inner...
  • Publication
    Bright Opportunities for Atmospheric Characterization of Small Planets: Masses and Radii of K2-3 b, c, and d and GJ3470 b from Radial Velocity Measurements and Spitzer Transits
    We report improved masses, radii, and densities for four planets in two bright M-dwarf systems, K2-3 and GJ3470, derived from a combination of new radial...
  • Publication
    Broadband transmission spectroscopy of HD 209458b with ESPRESSO: evidence for Na, TiO, or both
    Context. The detection and characterization of exoplanet atmospheres is currently one of the main drivers pushing the development of new observing facilities...
  • Publication
    Brown dwarf companion with a period of 4.6 yr interacting with the hot Jupiter CoRoT-20 b
    We report the discovery of an additional substellar companion in the CoRoT-20 system based on six years of HARPS and SOPHIE radial velocity follow-up. CoRoT-20...
  • Publication
    Brown dwarf companions in microlensing binaries detected during the 2016-2018 seasons
    Aims: With the aim of finding microlensing binaries containing brown dwarf (BD) companions, we investigate the microlensing survey data collected during the...
  • Grant
    Brown dwarfs as exoplanet analogues
    Although thousands of brown dwarfs and extrasolar planets have been discovered up to date, their formation and evolution models remains unknown. Hence, it is...
  • Publication
    C/O ratios in planetary nebulae with dual-dust chemistry from faint optical recombination lines
    We present deep high-resolution (R ˜ 15 000) and high-quality UVES optical spectrophotometry of nine planetary nebulae with dual-dust chemistry. We compute...