activity
20202024
most citedThe Nature of the Radius Valley: Hints from Formation and Evolution Models

230 citations · 1.3k across the 17 of their papers we have counts for

collaborators

19 papers

astro-ph.IM2024★ 13 cited

The PLATO Mission

Heike Rauer, Conny Aerts, Juan Cabrera +842

PLATO (PLAnetary Transits and Oscillations of stars) is ESA's M3 mission designed to detect and characterise extrasolar planets and perform asteroseismic monitoring of a large numb…

astro-ph.EP2024★ 60 cited

A fading radius valley towards M-dwarfs, a persistent density valley across stellar types

Julia Venturini, María Paula Ronco, Octavio M. Guilera +3

The radius valley separating super-Earths from mini-Neptunes is a fundamental benchmark for theories of planet formation and evolution. Observations show that the location of the r…

astro-ph.EP2024★ 2 cited

A radius valley between migrated steam worlds and evaporated rocky cores

Remo Burn, Christoph Mordasini, Lokesh Mishra +4

The radius valley (or gap) in the observed distribution of exoplanet radii, which separates smaller super-Earths from larger sub-Neptunes, is a key feature that theoretical models…

astro-ph.EP2022★ 52 cited

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

Cayman T. Unterborn, Steven J. Desch, Jonas Haldemann +4

The two primary observable quantities of an exoplanet--its mass and radius--alone are not sufficient to probe a rocky exoplanet's interior composition and mineralogy. To overcome t…

astro-ph.EP2022★ 30 cited

Exoplanet Characterization using Conditional Invertible Neural Networks

Jonas Haldemann, Victor Ksoll, Daniel Walter +6

The characterization of an exoplanet's interior is an inverse problem, which requires statistical methods such as Bayesian inference in order to be solved. Current methods employ M…

astro-ph.EP2022★ 60 cited

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

Thomas G. Wilson, Elisa Goffo, Yann Alibert +132

We report the discovery and characterisation of a pair of sub-Neptunes transiting the bright K-dwarf TOI-1064 (TIC 79748331), initially detected in TESS photometry. To characterise…

astro-ph.EP2021★ 107 cited

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

Olivier D. S. Demangeon, M. R. Zapatero Osorio, Y. Alibert +42

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 th…

astro-ph.EP2021★ 87 cited

Transit detection of the long-period volatile-rich super-Earth Lupi d with

Laetitia Delrez, David Ehrenreich, Yann Alibert +75

Exoplanets transiting bright nearby stars are key objects for advancing our knowledge of planetary formation and evolution. The wealth of photons from the host star gives detailed…

astro-ph.EP2021★ 35 cited

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

A. Sozzetti, M. Damasso, A. S. Bonomo +45

[Abridged] 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 su…

astro-ph.EP2021★ 195 cited

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

A. Leleu, Y. Alibert, N. C. Hara +152

Determining the architecture of multi-planetary systems is one of the cornerstones of understanding planet formation and evolution. Resonant systems are especially important as the…

astro-ph.EP2020★ 46 cited

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

A. Mortier, M. R. Zapatero Osorio, L. Malavolta +64

This paper reports on the detailed characterisation of the K2-111 planetary system with K2, WASP, and ASAS-SN photometry as well as high-resolution spectroscopic data from HARPS-N…

astro-ph.EP2020

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

Eric Agol, Caroline Dorn, Simon L. Grimm +32

We have collected transit times for the TRAPPIST-1 system with the Spitzer Space Telescope over four years. We add to these ground-based, HST and K2 transit time measurements, and…

astro-ph.EP2020★ 152 cited

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

Jonas Haldemann, Yann Alibert, Christoph Mordasini +1

Water is one of the key chemical elements in planetary structure modelling. Due to its complex phase diagram, equations of state cover often only parts of the pressure - temperatur…

astro-ph.EP2020★ 102 cited

A super-Earth and a sub-Neptune orbiting the bright, quiet M3 dwarf TOI-1266

B. -O. Demory, F. J. Pozuelos, Y. Gomez Maqueo Chew +70

We report the discovery and characterisation of a super-Earth and a sub-Neptune transiting the bright (), quiet, and nearby (37 pc) M3V dwarf TOI-1266. We validate the plane…

astro-ph.EP2020

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

Jennifer A. Burt, Louise D. Nielsen, Samuel N. Quinn +54

We report the detection of a transiting hot Neptune exoplanet orbiting TOI-824 (SCR J1448-5735), a nearby (d = 64 pc) K4V star, using data from the \textit{Transiting Exoplanet Sur…

astro-ph.EP2020★ 230 cited

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

Julia Venturini, Octavio M. Guilera, Jonas Haldemann +2

The existence of a Radius Valley in the Kepler size distribution stands as one of the most important observational constraints to understand the origin and composition of exoplanet…

astro-ph.EP2020★ 35 cited

TESS Reveals a Short-period Sub-Neptune Sibling (HD 86226c) to a Known Long-period Giant Planet

Johanna Teske, Matías R. Díaz, Rafael Luque +44

The Transiting Exoplanet Survey Satellite mission was designed to find transiting planets around bright, nearby stars. Here we present the detection and mass measurement of a small…

astro-ph.EP2020★ 13 cited

Planetary mass-radius relations across the galaxy

A. Michel, J. Haldemann, C. Mordasini +1

Planet formation theory suggests that planet bulk compositions are likely to reflect the chemical abundance ratios of their host star's photosphere. Variations in the abundance of…

astro-ph.EP2020★ 49 cited

Impact of the measured parameters of exoplanets on the inferred internal structure

J. F. Otegi, C. Dorn, R. Helled +3

Exoplanet characterization is one of the main foci of current exoplanetary science. For super-Earths and sub-Neptunes, we mostly rely on mass and radius measurements, which allow t…