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19912026
Showing 2019 · astro-ph.EPShow all

24 papers · 2 filters

astro-ph.EP2019★ 51 cited

Formation of moon systems around giant planets: Capture and ablation of planetesimals as foundation for a pebble accretion scenario

Thomas Ronnet, Anders Johansen

The four major satellites of Jupiter, known as the Galilean moons, and Saturn's most massive satellite, Titan, are believed to have formed in a predominantly gaseous circum-planeta…

astro-ph.EP2019★ 10 cited

Resilient habitability of nearby exoplanet systems

Giorgi Kokaia, Melvyn B. Davies, Alexander J. Mustill

We investigate the possibility of finding Earth-like planets in the habitable zone of 34 nearby FGK-dwarfs, each known to host one giant planet exterior to their habitable zone det…

astro-ph.EP2019★ 45 cited

The Kepler-11 system: evolution of the stellar high-energy emission and {initial planetary} atmospheric mass fractions

D. Kubyshkina, L. Fossati, A. J. Mustill +8

The atmospheres of close-in planets are strongly influenced by mass loss driven by the high-energy (X-ray and extreme ultraviolet, EUV) irradiation of the host star, particularly d…

astro-ph.EP2019★ 46 cited

Exploring the conditions for forming cold gas giants through planetesimal accretion

Anders Johansen, Bertram Bitsch

The formation of cold gas giants similar to Jupiter and Saturn in orbit and mass is a great challenge for planetesimal-driven core accretion models because the core growth rates fa…

astro-ph.EP2019★ 20 cited

On the inclinations of the Jupiter Trojans

Simona Pirani, Anders Johansen, Alexander J. Mustill

Jupiter Trojans are are characterized by dark photometric colors, high inclinations and an asymmetry in number of bodies between the two swarms. Different models have been proposed…

astro-ph.EP2019★ 130 cited

A giant exoplanet orbiting a very low-mass star challenges planet formation models

J. C. Morales, A. J. Mustill, I. Ribas +179

Statistical analyses from exoplanet surveys around low-mass stars indicate that super-Earth and Neptune-mass planets are more frequent than gas giants around such stars, in agreeme…