Journal ArticleDOI
The Gas Drag Effect on the Elliptic Motion of a Solid Body in the Primordial Solar Nebula
TLDR
The gas drag effect in the primordial solar nebula on the motion of a solid body, ranging from a large planetesimal to a small dust grain, is investigated in this article.Abstract:
The gas drag effect in the primordial solar nebula on the motion of a solid body, ranging from a large planetesimal to a small dust grain, is investigated. For a planetesimal, expressions for the short-term variation of the semi-major axis, the eccentricity and inclination are obtained using a perturbation method and a realistic formula for the gas drag force. For a small body, an orbit spiralling towards the sun in the equatorial plane of the nebula is investigated and the decay time of the orbital radius is obtained. It is found that the decay time at 1 a.u. is as short as 10' or 10' years for a solid body with mass in the range between 10' g and 10' g.read more
Citations
More filters
Journal ArticleDOI
Toward a Deterministic Model of Planetary Formation. I. A Desert in the Mass and Semimajor Axis Distributions of Extrasolar Planets
Shigeru Ida,D. N. C. Lin +1 more
TL;DR: In this article, the authors examine the accretion of cores of giant planets from planetesimals, gas accretion onto the cores, and their orbital migration and show that the mass and semimajor axis distributions generated in their simulations for the gas giants are consistent with those of the known extrasolar planets.
Journal ArticleDOI
The Disk Substructures at High Angular Resolution Project (DSHARP). I. Motivation, Sample, Calibration, and Overview
Sean M. Andrews,Jane Huang,Laura M. Pérez,Andrea Isella,Cornelis P. Dullemond,Nicolás T. Kurtovic,Viviana V. Guzmán,John M. Carpenter,David J. Wilner,Shangjia Zhang,Zhaohuan Zhu,Tilman Birnstiel,Xue-Ning Bai,Myriam Benisty,Myriam Benisty,A. Meredith Hughes,Karin I. Öberg,Luca Ricci +17 more
TL;DR: The Disk Substructures at High Angular Resolution Project (DSHARP) as mentioned in this paper was the first large-scale project to find and characterize substructures in the spatial distributions of solid particles for a sample of 20 nearby protoplanetary disks, using very high resolution (similar to 0'' 035 or 5 au, FWHM) observations of their 240 GHz (1.25 mm) continuum emission.
Journal ArticleDOI
Rapid growth of gas-giant cores by pebble accretion
TL;DR: In this article, the authors measured the accretion rate onto seed masses ranging from a large planetesimal to a fully grown 10-Earth-mass core and test different particle sizes, concluding that pebble accretion can resolve the long-standing core accretion timescale conflict.
Journal ArticleDOI
Settling and growth of dust particles in a laminar phase of a low-mass solar nebula
TL;DR: In this paper, the authors studied the settling and growth of dust particles in the subsequent laminar phase of the solar nebula in detail, treating a dust layer as a two-component fluid composed of the dust and the gas, and obtained analytic expressions for the settling path, the growing size, and the settling time.
Journal ArticleDOI
Particle Stirring in Turbulent Gas Disks: Including Orbital Oscillations
Andrew N. Youdin,Yoram Lithwick +1 more
TL;DR: In this article, the Schmidt number (ratio of gas to particle diusivity) is shown to rise quadratically, not linearly, with stopping time, and the particle layer becomes thinner with the strength of turbulent diusion held xed.
References
More filters