266 citations · 2.2k across the 41 of their papers we have counts for
41 papers
The formation of planetary systems: physics, populations, and architectures
Andrin Kessler, Jesse Weder, Jesse Polman +5
We review the progresses made in global theoretical models of planetary system formation in the last decade using the example of the planetary system formation framework known as t…
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…
DIPSY: A new Disc Instability Population SYnthesis, II. The Populations of Companions Formed Through Disc Instability
O. Schib, C. Mordasini, A. Emsenhuber +1
We applied the global end-to-end model described in Paper~I of this series to perform a population synthesis of companions formed via disc instability (DI). By using initial condit…
DIPSY: A new Disc Instability Population SYnthesis, I. Modeling, evolution of individual systems, and tests
O. Schib, C. Mordasini, A. Emsenhuber +1
Disc instability (DI) is a model aimed at explaining the formation of companions through the fragmentation of the circumstellar gas disc. Furthermore, DI could explain the formatio…
The New Generation Planetary Population Synthesis (NGPPS). VII. Statistical comparison with the HARPS/Coralie survey
Alexandre Emsenhuber, Christoph Mordasini, Michel Mayor +8
We seek to quantify the fidelity with which modern population syntheses reproduce observations in view of their use as predictive tools. We compared synthetic populations from the…
The New Generation Planetary Population Synthesis (NGPPS) VIII. Impact of host star metallicity on planet occurrence rates, orbital periods, eccentricities, and radius valley morphology
Di-Chang Chen, Christoph Mordasini, Alexandre Emsenhuber +3
The dust-to-gas ratio in the protoplanetary disk, which is likely imprinted into the host star metallicity, is a property that plays a crucial role during planet formation. We aim…
Can metal-rich worlds form by giant impacts?
Saverio Cambioni, Benjamin P. Weiss, Erik Asphaug +5
Planets and stars are expected to be compositionally linked because they accrete from the same material reservoir. However, astronomical observations revealed the existence of exop…
Constraints on the formation history and composition of Kepler planets from their distribution of orbital period ratios
Di-Chang Chen, Christoph Mordasini, Ji-Wei Xie +2
The Kepler high-precision planetary sample has revealed a radius valley, separating compact super-Earths from sub-Neptunes with lower density. Super-Earths are generally assumed to…
A New Database of Giant Impacts over a Wide Range of Masses and with Material Strength: A First Analysis of Outcomes
Alexandre Emsenhuber, Erik Asphaug, Saverio Cambioni +4
In the late stage of terrestrial planet formation, planets are predicted to undergo pairwise collisions known as giant impacts. Here we present a high-resolution database of giant…
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…
Population study on MHD wind-driven disc evolution -- Confronting theory and observation
Jesse Weder, Christoph Mordasini, Alexandre Emsenhuber
Context. Current research has established magnetised disc winds as a promising way of driving accretion in protoplanetary discs. Aims. We investigate the evolution of large protopl…
Planetary Population Synthesis and the Emergence of Four Classes of Planetary System Architectures
Alexandre Emsenhuber, Christoph Mordasini, Remo Burn
Planetary population synthesis is a tool to understand the physics of planetary system formation. It builds on a model that includes a multitude of physical processes. The outcome…
Towards a population synthesis of discs and planets. II. Confronting disc models and observations at the population level
Alexandre Emsenhuber, Remo Burn, Jesse Weder +4
Aims. We want to find the distribution of initial conditions that best reproduces disc observations at the population level. Methods. We first ran a parameter study using a 1D mode…
L-band nulling interferometry at the VLTI with Asgard/Hi-5: status and plans
Denis Defrère, Azzurra Bigioli, Colin Dandumont +34
Hi-5 is the L'-band (3.5-4.0 m) high-contrast imager of Asgard, an instrument suite in preparation for the visitor focus of the VLTI. The system is optimized for high-contrast a…
Toward a Population Synthesis of Disks and Planets I. Evolution of Dust with Entrainment in Winds and Radiation Pressure
Remo Burn, Alexandre Emsenhuber, Jesse Weder +5
Millimeter astronomy provides valuable information on the birthplaces of planetary systems. In order to compare theoretical models with observations, the dust component has to be c…
RV-detected planets around M dwarfs: Challenges for core accretion models
Martin Schlecker, Remo Burn, Silvia Sabotta +7
Planet formation is sensitive to the conditions in protoplanetary disks, for which scaling laws as a function of stellar mass are known. We aim to test whether the observed populat…
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…
Collision Chains among the Terrestrial Planets. III. Formation of the Moon
Erik Asphaug, Alexandre Emsenhuber, Saverio Cambioni +2
In the canonical model of Moon formation, a Mars-sized protoplanet "Theia" collides with proto-Earth at close to their mutual escape velocity and a common impact angl…
Collision Chains among the Terrestrial Planets. II. An Asymmetry between Earth and Venus
Alexandre Emsenhuber, Erik Asphaug, Saverio Cambioni +2
During the late stage of terrestrial planet formation, hit-and-run collisions are about as common as accretionary mergers, for expected velocities and angles of giant impacts. Aver…
The Effect of Inefficient Accretion on Planetary Differentiation
Saverio Cambioni, Seth A. Jacobson, Alexandre Emsenhuber +5
Pairwise collisions between terrestrial embryos are the dominant means of accretion during the last stage of planet formation. Hence, their realistic treatment in N-body studies is…
The New Generation Planetary Population Synthesis (NGPPS). VI. Introducing KOBE: Kepler Observes Bern Exoplanets. Theoretical perspectives on the architecture of planetary systems: Peas in a pod
Lokesh Mishra, Yann Alibert, Adrien Leleu +5
(abridged) Observations of exoplanets indicate the existence of several correlations in the architecture of planetary systems. Exoplanets within a system tend to be of similar size…
The New Generation Planetary Population Synthesis (NGPPS). IV. Planetary systems around low-mass stars
Remo Burn, Martin Schlecker, Christoph Mordasini +5
Previous work concerning planet formation around low-mass stars has often been limited to large planets and individual systems. As current surveys routinely detect planets down to…
The New Generation Planetary Population Synthesis (NGPPS). V. Predetermination of planet types in global core accretion models
M. Schlecker, D. Pham, R. Burn +6
State-of-the-art planet formation models are now capable of accounting for the full spectrum of known planet types. This comes at the cost of increasing complexity of the models, w…