Christophe Lovis

Abstract Imaging Earth-like exoplanets around Sun-like stars from the ground is challenging and requires substantial advances in techniques. This Perspective presents and provides the predicted performance of a hybrid space–ground approach that combines a large ground-based telescope, such as the Extremely Large Telescope (ELT), the Thirty Meter Telescope (TMT) or the Giant Magellan Telescope (GMT), with a shared orbiting starshade in space.

Abstract Ultrahot giant exoplanets receive thousands of times Earth’s insolation1,2. Their high-temperature atmospheres (greater than 2,000 kelvin) are ideal laboratories for studying extreme planetary climates and chemistry3,4,5. Daysides are predicted to be cloud-free, dominated by atomic species6 and much hotter than nightsides5,7,8. Atoms are expected to recombine into molecules over the nightside9, resulting in different day and night chemistries.

Abonné 4 minutes de lecture Energie Dr Christophe Lovis, maître d'enseignement et de recherche au département d'astronomie de l'Université de Genève Publié jeudi 4 juillet 2019 à 18:01, modifié jeudi 4 juillet 2019 à 18:04. Abonné Opinion OPINION.