Alibert, YannYannAlibert0000-0002-4644-88182024-12-132024-12-132015-09https://boris-portal.unibe.ch/handle/20.500.12422/192704We compute the maximum radius a planet can have in order to fulfill two constraints that are likely necessary conditions for habitability: 1- surface temperature and pressure compatible with the existence of liquid water, and 2- no ice layer at the bottom of a putative global ocean, that would prevent the operation of the geologic carbon cycle to operate. We demonstrate that, above a given radius, these two constraints cannot be met: in the Super-Earth mass range (1-12 M-earth), the overall maximum that a planet can have varies between 1.8 and 2.3 R-earth. This radius is reduced when considering planets with higher Fe/Si ratios, and taking into account irradiation effects on the structure of the gas envelope.enPlanet structureHabitabilityPlanet composition500 - Science::520 - Astronomy500 - Science::530 - Physicsarticle10.7892/boris.8195300035836670000410.1007/s11084-015-9440-7