Growth of Planetary Embryos: Conserving Mass During Planet Formation in the Oligarchic Growth Stage
نویسندگان
چکیده
منابع مشابه
Terrestrial Planet Formation I. The Transition from Oligarchic Growth to Chaotic Growth
We use a hybrid, multiannulus, n-body–coagulation code to investigate the growth of km-sized planetesimals at 0.4–2 AU around a solar-type star. After a short runaway growth phase, protoplanets with masses of ∼ 10 g and larger form throughout the grid. When (i) the mass in these ‘oligarchs’ is roughly comparable to the mass in planetesimals and (ii) the surface density in oligarchs exceeds 2–3 ...
متن کاملOligarchic planetesimal accretion and giant planet formation
Aims. In the context of the core instability model, we present calculations of in situ giant planet formation. The oligarchic growth regime of solid protoplanets is the model adopted for the growth of the core. This growth regime for the core has not been considered before in full evolutionary calculations of this kind. Methods. The full differential equations of giant planet formation were num...
متن کاملOligarchic Growth of Protoplanets
and N-body calculations (e.g., Ida 1990, Ida and Makino 1992b). It is shown that dynamical friction is effective in We investigate the growth and the orbital evolution of proa Keplerian potential as well as in a free space. Kokubo toplanets embedded in a swarm of planetesimals using threedimensional N-body simulations. We find that among protoplaand Ida (1996), hereafter referred to as Paper I,...
متن کاملOligarchic and giant impact growth of terrestrial planets in the presence of gas giant planet migration
Giant planets found orbiting close to their central stars, the so-called ‘hot Jupiters’, are thought to have originally formed in the cooler outer regions of a protoplanetary disk and then to have migrated inward via tidal interactions with the nebula gas. We present the results of N–body simulations which examine the effect such gas giant planet migration has on the formation of terrestrial pl...
متن کاملOligarchic growth of giant planets
Runaway growth ends when the largest protoplanets dominate the dynamics of the planetesimal disk; the subsequent self-limiting accretion mode is referred to as “oligarchic growth.” Here, we begin by expanding on the existing analytic model of the oligarchic growth regime. From this, we derive global estimates of the planet formation rate throughout a protoplanetary disk. We find that a relative...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Purdue Undergraduate Research
سال: 2015
ISSN: 2158-4044,2158-4052
DOI: 10.5703/jpur.05.1.06