English
Related papers

Related papers: A new metric to quantify the similarity between pl…

200 papers

This is the second paper in a series of papers showing the results of extrasolar planet population synthesis calculations. In the companion paper (Paper I), we have presented in detail our methods. By applying an observational detection…

Earth and Planetary Astrophysics · Physics 2015-05-13 Christoph Mordasini , Yann Alibert , Willy Benz , Dominique Naef

Dust substructures in protoplanetary discs can be signatures of embedded young planets whose detection and characterisation would provide a better understanding of planet formation. Traditional techniques used to link substructures'…

Earth and Planetary Astrophysics · Physics 2025-08-20 A. Ruzza , G. Lodato , G. P. Rosotti , P. J. Armitage

Exoplanets observed by the {\it Kepler} telescope exhibit a bi-modal, radius distribution, which is known as the radius gap. We explore an origin of the radius gap, focusing on multi-planet systems. Our simple theoretical argument predicts…

Earth and Planetary Astrophysics · Physics 2021-07-14 Udit Arora , Yasuhiro Hasegawa

Exoplanet surveys have revealed a wide diversity of planetary systems, requiring integrated models of planet formation to explain their origin. Planet population synthesis (PPS) modelling is a key tool for linking theory with the…

Earth and Planetary Astrophysics · Physics 2026-04-21 Tadahiro Kimura , Masahiro Ikoma

We demonstrate that microlensing can be used for detecting planets in binary stellar systems. This is possible because in the geometry of planetary binary systems where the planet orbits one of the binary component and the other binary star…

We propose several descriptive measures to characterize the arrangements of planetary masses, periods, and mutual inclinations within exoplanetary systems. These measures are based in complexity theory and capture the global, system-level…

Earth and Planetary Astrophysics · Physics 2020-06-10 Gregory J. Gilbert , Daniel C. Fabrycky

Mean densities of major and dwarf planets are possible to calculate by the values of the planets distance to the Sun, the mean densities of massive natural satellites of planets are computable by the satellites distance to the Sun and the…

Earth and Planetary Astrophysics · Physics 2012-12-04 Konstantin P. Kobzar

I begin this review by first defining what is meant by exoplanet demographics, and then motivating why we would like as broad a picture of exoplanet demographics as possible. I then outline the methodology and pitfalls to measuring…

Earth and Planetary Astrophysics · Physics 2022-03-02 B. Scott Gaudi

Most stars do not form in isolation, but as part of a star cluster or association. These young stars are initially surrounded by protoplanetary discs. In these cluster environments tidal interactions with other cluster members can alter the…

Astrophysics of Galaxies · Physics 2014-06-04 Andreas Breslau , Manuel Steinhausen , Kirsten Vincke , Susanne Pfalzner

Although the sample of exoplanets in binaries has been greatly expanded, the sample heterogeneity and observational bias are obstacles toward a clear figure of exoplanet demographics in the binary environment. To overcome the obstacles, we…

Earth and Planetary Astrophysics · Physics 2021-12-08 Xiang-Ning Su , Ji-Wei Xie , Ji-Lin Zhou , Philippe Thebault

With the high number of extrasolar planets discovered by now, it becomes possible to constrain theoretical formation models in a statistical sense. This paper is the first in a series in which we carry out a large number of planet…

Earth and Planetary Astrophysics · Physics 2015-05-13 Christoph Mordasini , Yann Alibert , Willy Benz

When and how planets form in protoplanetary disks is still a topic of discussion. Exoplanet detection surveys and protoplanetary disk surveys are now providing results that allow us to have new insights. We collect the masses of confirmed…

Earth and Planetary Astrophysics · Physics 2018-10-17 C. F. Manara , A. Morbidelli , T. Guillot

In this article, I examine several observational trends regarding protoplanetary disks, debris disks and exoplanets in binary systems in an attempt to constrain the physical mechanisms of planet formation in such a context. Binaries wider…

Solar and Stellar Astrophysics · Physics 2015-05-14 G. Duchene

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 terrestrial size in these systems, a more holistic approach…

Earth and Planetary Astrophysics · Physics 2021-12-08 Remo Burn , Martin Schlecker , Christoph Mordasini , Alexandre Emsenhuber , Yann Alibert , Thomas Henning , Hubert Klahr , Willy Benz

The formation mechanism of planetesimals in protoplanetary discs is hotly debated. Currently, the favoured model involves the accumulation of meter-sized objects within a turbulent disc, followed by a phase of gravitational instability. At…

Earth and Planetary Astrophysics · Physics 2010-03-16 Hanno Rein , Geoffroy Lesur , Zoe M. Leinhardt

This study uses numerical hydrodynamics calculations and a novel method for densely sampling parameter space to measure the precise shape of a gap opened by a planet in a gaseous disk, as a function of planet-to-star mass ratio, disk Mach…

Earth and Planetary Astrophysics · Physics 2020-02-05 Paul C. Duffell

The frequency of planets in binaries is an important issue in the field of extrasolar planet studies, because of its relevance in estimating of the global planet population of our Galaxy and the clues it can give to our understanding of…

Astrophysics · Physics 2009-11-13 M. Bonavita , S. Desidera

We extend the models presented in Mordasini et al. (2009) to the formation of planets orbiting stars of different masses. We discuss the properties of the resulting synthetic planet population in terms of mass, orbit, and metallicity…

Earth and Planetary Astrophysics · Physics 2015-05-20 Yann Alibert , Christoph Mordasini , Willy Benz

Astrometry covers a parameter space that cannot be reached by RV or transit methods to detect terrestrial planets on wide orbits. In addition, high accuracy astrometric measurements are necessary to measure the inclination of the planet's…

Earth and Planetary Astrophysics · Physics 2016-07-20 Quentin Kral , Jean Schneider , Grant Kennedy , Damya Souami