Matches in SemOpenAlex for { <https://semopenalex.org/work/W4237610029> ?p ?o ?g. }
Showing items 1 to 74 of
74
with 100 items per page.
- W4237610029 endingPage "iv" @default.
- W4237610029 startingPage "iii" @default.
- W4237610029 abstract "We present results from a suite of N-body simulations that follow the formation and accretion history of the terrestrial planets using a new parallel treecode that we have developed. We initially place 2000 equal size planetesimals between 0.5 and 4.0 AU and the collisional growth is followed until the completion of planetary accretion (>100 Myr). A total of 64 simulations were carried out to explore sensitivity to the key parameters and initial conditions. All the important effect of gas in laminar disks are taken into account: the aerodynamic gas drag, the disk–planet interaction including Type I migration, and the global disk potential which causes inward migration of secular resonances as the gas dissipates. We vary the initial total mass and spatial distribution of the planetesimals, the time scale of dissipation of nebular gas (which dissipates uniformly in space and exponentially in time), and orbits of Jupiter and Saturn. We end up with 1–5 planets in the terrestrial region. In order to maintain sufficient mass in this region in the presence of Type I migration, the time scale of gas dissipation needs to be 1–2 Myr. The final configurations and collisional histories strongly depend on the orbital eccentricity of Jupiter. If today’s eccentricity of Jupiter is used, then most of bodies in the asteroidal region are swept up within the terrestrial region owing to the inward migration of the secular resonance, and giant impacts between protoplanets occur most commonly around 10 Myr. If the orbital eccentricity of Jupiter is close to zero, as suggested in the Nice model, the effect of the secular resonance is negligible and a large amount of mass stays for a long period of time in the asteroidal region. With a circular orbit for Jupiter, giant impacts usually occur around 100 Myr, consistent with the accretion time scale indicated from isotope records. However, we inevitably have an Earth size planet at around 2 AU in this case. It is very difficult to obtain spatially concentrated terrestrial planets together with very late giant impacts, as long as we include all the above effects of gas and assume initial disks similar to the minimum mass solar nebular." @default.
- W4237610029 created "2022-05-12" @default.
- W4237610029 date "1992-08-01" @default.
- W4237610029 modified "2023-09-26" @default.
- W4237610029 title "Contents of Volume 98" @default.
- W4237610029 doi "https://doi.org/10.1016/0019-1035(92)90098-r" @default.
- W4237610029 hasPublicationYear "1992" @default.
- W4237610029 type Work @default.
- W4237610029 citedByCount "0" @default.
- W4237610029 crossrefType "journal-article" @default.
- W4237610029 hasConcept C100905312 @default.
- W4237610029 hasConcept C104060986 @default.
- W4237610029 hasConcept C118873486 @default.
- W4237610029 hasConcept C121332964 @default.
- W4237610029 hasConcept C127313418 @default.
- W4237610029 hasConcept C1276947 @default.
- W4237610029 hasConcept C12853656 @default.
- W4237610029 hasConcept C154010619 @default.
- W4237610029 hasConcept C163479331 @default.
- W4237610029 hasConcept C173740370 @default.
- W4237610029 hasConcept C178957599 @default.
- W4237610029 hasConcept C19269812 @default.
- W4237610029 hasConcept C22268893 @default.
- W4237610029 hasConcept C2776401274 @default.
- W4237610029 hasConcept C2780118271 @default.
- W4237610029 hasConcept C2780909310 @default.
- W4237610029 hasConcept C44870925 @default.
- W4237610029 hasConcept C511503438 @default.
- W4237610029 hasConcept C51244244 @default.
- W4237610029 hasConcept C66279824 @default.
- W4237610029 hasConcept C75876914 @default.
- W4237610029 hasConcept C87355193 @default.
- W4237610029 hasConceptScore W4237610029C100905312 @default.
- W4237610029 hasConceptScore W4237610029C104060986 @default.
- W4237610029 hasConceptScore W4237610029C118873486 @default.
- W4237610029 hasConceptScore W4237610029C121332964 @default.
- W4237610029 hasConceptScore W4237610029C127313418 @default.
- W4237610029 hasConceptScore W4237610029C1276947 @default.
- W4237610029 hasConceptScore W4237610029C12853656 @default.
- W4237610029 hasConceptScore W4237610029C154010619 @default.
- W4237610029 hasConceptScore W4237610029C163479331 @default.
- W4237610029 hasConceptScore W4237610029C173740370 @default.
- W4237610029 hasConceptScore W4237610029C178957599 @default.
- W4237610029 hasConceptScore W4237610029C19269812 @default.
- W4237610029 hasConceptScore W4237610029C22268893 @default.
- W4237610029 hasConceptScore W4237610029C2776401274 @default.
- W4237610029 hasConceptScore W4237610029C2780118271 @default.
- W4237610029 hasConceptScore W4237610029C2780909310 @default.
- W4237610029 hasConceptScore W4237610029C44870925 @default.
- W4237610029 hasConceptScore W4237610029C511503438 @default.
- W4237610029 hasConceptScore W4237610029C51244244 @default.
- W4237610029 hasConceptScore W4237610029C66279824 @default.
- W4237610029 hasConceptScore W4237610029C75876914 @default.
- W4237610029 hasConceptScore W4237610029C87355193 @default.
- W4237610029 hasIssue "2" @default.
- W4237610029 hasLocation W42376100291 @default.
- W4237610029 hasOpenAccess W4237610029 @default.
- W4237610029 hasPrimaryLocation W42376100291 @default.
- W4237610029 hasRelatedWork W1547044074 @default.
- W4237610029 hasRelatedWork W1963861053 @default.
- W4237610029 hasRelatedWork W2024770774 @default.
- W4237610029 hasRelatedWork W2115618550 @default.
- W4237610029 hasRelatedWork W2140611633 @default.
- W4237610029 hasRelatedWork W2478477986 @default.
- W4237610029 hasRelatedWork W2500656721 @default.
- W4237610029 hasRelatedWork W2972900478 @default.
- W4237610029 hasRelatedWork W3099381095 @default.
- W4237610029 hasRelatedWork W3175150584 @default.
- W4237610029 hasVolume "98" @default.
- W4237610029 isParatext "false" @default.
- W4237610029 isRetracted "false" @default.
- W4237610029 workType "article" @default.