English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We study the effect of a massive planetesimal disk on the dynamical stabilityof the outer planets assuming, as has been suggested recently, that these wereinitially locked in a compact and multiresonant configuration as a result ofgas-driven migration in a protoplanetary disk. The gravitational interactionamong all bodies in our simulations is included self-consistently using theMercury6.5 code. Several initial multiresonant configurations and planetesimaldisk models are considered. Under such conditions a strong dynamicalinstability, manifested as a rapid giant planet migration and planetesimal diskdispersal, develops on a timescale of less than 40 Myr in most cases. Dynamicaldisk heating due to the gravitational interactions among planetesimals leads tomore frequent interactions between the planetesimals and the ice giants Uranusand Neptune, in comparison to models in which planetesitmal-planetesimalinteractions are neglected. On account of the rapid evolution of themultiresonant configurations obtained with fully self-consistent simulations,our results are inconsistent with the dynamical instability origin of the LateHeavy Bombardment as currently considered by the Nice model for the SolarSystem.

Stability of the Outer Planets in Multiresonant Configurations with a Self-gravitating Planetesimal Disk