National Centre of Competence in Research PlanetS
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Linking models and observations

In order to interpret the observed planetary spectra and make quantitative statements, observations have to be linked to theoretical models. On the other hand, theory may provide predictions about where, what, and how to observe. This sub-project links observations with theoretical modelling to make us ‘understand’ the real nature of planets.

The goals of this sub-project are:

 

This sub-project has natural links with other sub-projects in Planetary Atmospheres and other projects in PlanetS.

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A planet inflated like a balloon

A planet inflated like a balloon

Researchers from UNIGE and members of the NCCR PlanetS have found helium in the atmosphere of an exoplanet, swollen like a balloon. Although helium is a rare element on Earth, it is ubiquitous in the Universe. It is, after hydrogen, the main component of stars and gaseous giant planets. Despite its abundance, helium was only […]

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Iron and titanium in the atmosphere

Iron and titanium in the atmosphere

Metal vapours have been detected in the atmosphere of an “ultra-hot Jupiter” by a team of astronomers led by the UNIGE. Exoplanets, planets in other solar systems, can orbit very close to their host star. When, in addition to this, the host star is much hotter than our Sun, then the exoplanet becomes as hot […]

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Observing the Sun to detect planets

Observing the Sun to detect planets

The detection of small exoplanets like the Earth is subject to many difficulties, in particular those introduced by the intrinsic variation of the star which can be confused with the presence of a planet. An international team of astronomers and engineers, led by scientist from the University of Geneva (UNIGE) and member of PlanetS, has […]

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