Publications

Publications sorted by year Publications as First Author Publications as Co-Author

2024 2
2023 2
2022 1
2021 4
2020 9

2024

A radius valley between migrated steam worlds and evaporated rocky cores

We provide a hybrid theoretical explanation of the radius gap and cliff caused by both planet formation (orbital migration) as well as evolution (atmospheric escape).

BICEPS: An improved characterization model for low- and intermediate-mass exoplanets

We present an improved interior characterization model for planets with masses between 0.5 and 30 Earth masses, equilibrium temperatures below <2000 K, and a wide range of planetary compositions and physical phases.

2023

Exoplanet characterization using conditional invertible neural networks

To speed up the inference process when characterizing an exoplanet, we propose to use conditional invertible neural networks to calculate the posterior probability of the planetary structure parameters.

The Nominal Ranges of Rocky Planet Masses, Radii, Surface Gravities, and Bulk Densities

Here we present the open-source ExoPlex mass–radius–composition solver.

2022

A pair of Sub-Neptunes transiting the bright K-dwarf TOI-1064 characterised with CHEOPS

We report the discovery and characterisation of a pair of sub-Neptunes transiting the bright K-dwarf TOI-1064.

2021

Warm terrestrial planet with half the mass of Venus transiting a nearby star

The advent of a new generation of radial velocity instruments has allowed us to break the one Earth-mass barrier. We report a new milestone in this context with the detection of the lowest-mass planet measured so far using radial velocities: L 98-59 b, a rocky planet with half the mass of Venus.

Transit detection of the long-period volatile-rich super-Earth \(\nu^2\) Lupi d with CHEOPS

We report the detection of a long period exoplanet orbiting the naked-eye, Sun-like star \(\nu^2\) Lupi using data from the Characterising Exoplanets Satellite (CHEOPS).

A sub-Neptune and a non-transiting Neptune-mass companion unveiled by ESPRESSO around the bright late-F dwarf HD 5278 (TOI-130)

We exploit the extreme radial velocity (RV) precision of the ultra-stable echelle spectrograph ESPRESSO on the VLT to unveil the physical properties of the transiting sub-Neptune TOI-130 b.

Six transiting planets and a chain of Laplace resonances in TOI-178

We report the discovery and characterization of a planetary system in which five of the six planets are in Laplace resonance.

2020

K2-111 an old system with two planets in near-resonance

This paper reports on the detailed characterisation of the K2-111 planetary system. Aside of K2-111 b, we announce the existence of a second sinusoidal signal in the radial velocity data, caused by a non-transiting planet, K2-111 c.

Refining the transit timing and photometric analysis of TRAPPIST-1: Masses, radii, densities, dynamics, and ephemerides

We have collected transit times of the system over four years. We find that all seven planets densities may be described with a single rocky mass-radius relation which is depleted in iron relative to Earth.

AQUA: A Collection of water Equations of State for Planetary Models

We construct an equation of state of \(H_2O\) spanning a very wide range from 0.1 Pa to 400 TPa and 150 K to \(10^{5}\) K, which can be used to model the interior of planets.

TOI-824 b: A New Planet on the Lower Edge of the Hot Neptune Desert

We report the detection of a transiting hot Neptune exoplanet orbiting TOI-824, a nearby K4V star, using data from the Transiting Exoplanet Survey Satellite (TESS).

The Nature of the Radius Valley: Hints from Formation and Evolution Models

The goal of this work is to provide insights into the existence of the Radius Valley from, first, a pure formation point of view, and second, a combined formation-evolution model. We run global planet formation simulations including the evolution of dust by coagulation, drift and fragmentation; and the evolution of the gaseous disc by viscous accretion and photoevaporation.