C.D.S. - SIMBAD4 rel 1.7 - 2020.04.09CEST23:42:17

2018ApJ...868...48K - Astrophys. J., 868, 48-48 (2018/November-3)

Impacts of dust feedback on a dust ring induced by a planet in a protoplanetary disk.


Abstract (from CDS):

When a planet forms a deep gap in a protoplanetary disk, dust grains cannot pass through the gap. As a consequence, the density of the dust grains can increase up to the same level of the density of the gas at the outer edge. The feedback on the gas from the drifting dust grains is not negligible in such a dusty region. We carried out two-dimensional two-fluid (gas and dust) hydrodynamic simulations. We found that when the radial flow of the dust grains across the gap is halted, a broad ring of dust grains can be formed because of the dust feedback and the diffusion of the dust grains. The minimum mass of the planet needed to form the broad dust ring is consistent with the pebble-isolation mass in the parameter range of our simulations. The broad ring of dust grains is a good environment for the formation of the protoplanetary solid core. If the ring is formed in the disk around a Sun-like star at ∼2 au, a massive, solid core (∼50 M) can be formed within the ring, which may be connected to the formation of hot Jupiters holding a massive, solid core, such as HD 149026b. In the disk of a dwarf star, a number of Earth-sized planets can be formed within the dust ring around ∼0.5 au, a phenomenon that potentially explains a planet system made of multiple Earth-sized planets around a dwarf star such as TRAPPIST-1.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): accretion, accretion disks - planet-disk interactions - planets and satellites: formation - protoplanetary disks

Status at CDS:  

Simbad objects: 6

goto Full paper

goto View the reference in ADS

Number of rows : 6

N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
1 V* HL Tau TT* 04 31 38.471952 +18 13 58.08504   15.89 14.49 14.39   K5 1175 0
2 HD 36112 Ae* 05 30 27.5286772598 +25 19 57.082162439   8.57 8.27     A8Ve 345 0
3 V* TW Hya TT* 11 01 51.9054298616 -34 42 17.031550898   11.94 10.50 10.626 9.18 K6Ve 1496 1
4 HD 149026b Pl 16 30 29.6184841164 +38 20 50.310893575           ~ 293 1
5 TRAPPIST-1 PM* 23 06 29.3684052886 -05 02 29.031690445     18.798 16.466 14.024 M8 438 0
6 WASP-59b Pl 23 18 29.54 +24 53 21.4           ~ 25 1

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2018ApJ...868...48K and select 'bookmark this link' or equivalent in the popup menu


© Université de Strasbourg/CNRS

    • Contact