1.3k citations · 1.9k across the 11 of their papers we have counts for
11 papers
Convective mixing in distant and close-in giant planets -- Dependences on the initial composition, luminosity, bloating and semi-convection
Jesse Polman, Christoph Mordasini
Recent structure models of Jupiter suggest the existence of an extended region in the deep interior with a high heavy element abundance, referred to as a dilute core. This finding…
Chemical diversity of the atmospheres and interiors of sub-Neptunes: a case study of GJ 436 b
A. Guzmán-Mesa, D. Kitzmann, C. Mordasini +1
The atmospheres of sub-Neptunes are expected to exhibit considerable chemical diversity, beyond what is anticipated for gas-giant exoplanets. In the current study, we construct sel…
On the multiple generations of planetary embryos
Oliver Voelkel, Hubert Klahr, Christoph Mordasini +1
Global models of planet formation tend to begin with an initial set of planetary embryos for the sake simplicity. While this approach gives valuable insights on the evolution of th…
Grain opacity and the bulk composition of extrasolar planets. II. An analytical model for the grain opacity in protoplanetary atmospheres
C. Mordasini
Context. We investigate the grain opacity k_gr in the atmosphere of protoplanets. This is important for the planetary mass-radius relation since k_gr affects the H/He envelope mass…
Grain opacity and the bulk composition of extrasolar planets. I. Results from scaling the ISM opacity
C. Mordasini, H. Klahr, Y. Alibert +2
The opacity due to grains in the envelope of a protoplanet regulates the accretion rate of gas during formation, thus the final bulk composition of planets with primordial H/He is…
Planet Population Synthesis
W. Benz, S. Ida, Y. Alibert +2
With the increasing number of exoplanets discovered, statistical properties of the population as a whole become unique constraints on planet formation models provided a link betwee…
The PLATO 2.0 Mission
H. Rauer, C. Catala, C. Aerts +159
PLATO 2.0 has recently been selected for ESA's M3 launch opportunity (2022/24). Providing accurate key planet parameters (radius, mass, density and age) in statistical numbers, it…
A Framework for Characterizing the Atmospheres of Low-Mass Low-Density Transiting Planets
Jonathan J. Fortney, Christoph Mordasini, Nadine Nettelmann +3
We perform modeling investigations to aid in understanding the atmospheres and composition of small planets of ~2-4 Earth radii, which are now known to be common in our galaxy. GJ…
Characterizing Exoplanets in the Visible and Infrared: A Spectrometer Concept for the EChO Space Mission
A. M. Glauser, R. van Boekel, O. Krause +30
Transit-spectroscopy of exoplanets is one of the key observational techniques to characterize the extrasolar planet and its atmosphere. The observational challenges of these measur…
Deuterium burning in objects forming via the core accretion scenario - Brown dwarfs or planets?
Paul Mollière, Christoph Mordasini
Aims. Our aim is to study deuterium burning in objects forming according to the core accretion scenario in the hot and cold start assumption and what minimum deuterium burning mass…
Application of recent results on the orbital migration of low mass planets: convergence zones
C. Mordasini, K. -M. Dittkrist, Y. Alibert +3
Previous models of the combined growth and migration of protoplanets needed large ad hoc reduction factors for the type I migration rate as found in the isothermal approximation. I…