6 papers
Mind the Companion : Demographics of Transiting S-type Exoplanets
Lina Y. Messamah, François Bouchy, Julia Venturini +2
Exoplanet demographic studies rely on large and homogeneous catalogues, yet stellar multiplicity remains incompletely characterised in many planet samples. We update the PlanetS ca…
A formation pathway for giant planets in S-type discs of γ-Cephei-like compact binaries
MarÃa Paula Ronco, Octavio M. Guilera, Julia Venturini +2
Planet formation in close binary systems such as -Cephei is strongly challenged by the truncation of the circumprimary disc induced by the stellar companion, which limits the a…
Origin and characterization of super-Earths and sub-Neptunes
Léna Parc, Julia Venturini, François Bouchy +6
Super-Earths and sub-Neptunes represent the most common class of exoplanets discovered to date in our galaxy, yet they have no direct analogues in the Solar System. Since 2014, res…
Gas-depleted planet formation occurred in the four-planet system around the red dwarf LHS 1903
Thomas G. Wilson, Anna M. Simpson, Andrew Collier Cameron +173
Small exoplanet radii show two populations, referred to as super-Earths and sub-Neptunes, separated by a gap known as the radius valley. This may be produced by the removal of atmo…
The PAIRS project: a global formation model for planets in binaries. II. Gravitational perturbation effects from secondary stars
Arianna Nigioni, Julia Venturini, Emeline Bolmont +3
Roughly half of Sun-like stars have at least one stellar companion, whereas it is widely assumed that most known exoplanets orbit single stars, largely due to observational biases.…
The PAIRS project: a global formation model for planets in binaries. I. Effect of disc truncation on the growth of S-type planets
Julia Venturini, Arianna Nigioni, Maria Paula Ronco +2
Binary stars are as common as single stars. The number of detected planets orbiting binaries is rapidly increasing thanks to the synergy between transit surveys, Gaia and high-reso…