Abstract
The dynamical evolution of a disk and the orbital migration of an embedded protoplanet are examined. We show how the migration of a protoplanet due to density waves torques can suppress the tendency for tidal truncation of the disk. A critical mass is determined as a function of the disk properties that represents the limiting mass that can sustain drift without stalling. This inertial limit is derived analytically, using a quasi-steady state theory, and confirmed by numerical experiment. This result contradicts the claim of Lin and Papaloizou that such a limit does not exist. Orbital mobility of objects due to density wave torques may have played an important role in the early evolution of the solar system.
| Original language | English |
|---|---|
| Pages (from-to) | 490-495 |
| Number of pages | 6 |
| Journal | Astrophysical Journal |
| Volume | 347 |
| DOIs | |
| Publication status | Published - 1 Dec 1989 |
| Externally published | Yes |
Keywords
- Formation-solar system
- General
- Hydrodynamics-planets
Cite this
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Orbital migration of protoplanets : The inertial limit. / Ward, William R.; Hourigan, Kerry.
In: Astrophysical Journal, Vol. 347, 01.12.1989, p. 490-495.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Orbital migration of protoplanets
T2 - The inertial limit
AU - Ward, William R.
AU - Hourigan, Kerry
PY - 1989/12/1
Y1 - 1989/12/1
N2 - The dynamical evolution of a disk and the orbital migration of an embedded protoplanet are examined. We show how the migration of a protoplanet due to density waves torques can suppress the tendency for tidal truncation of the disk. A critical mass is determined as a function of the disk properties that represents the limiting mass that can sustain drift without stalling. This inertial limit is derived analytically, using a quasi-steady state theory, and confirmed by numerical experiment. This result contradicts the claim of Lin and Papaloizou that such a limit does not exist. Orbital mobility of objects due to density wave torques may have played an important role in the early evolution of the solar system.
AB - The dynamical evolution of a disk and the orbital migration of an embedded protoplanet are examined. We show how the migration of a protoplanet due to density waves torques can suppress the tendency for tidal truncation of the disk. A critical mass is determined as a function of the disk properties that represents the limiting mass that can sustain drift without stalling. This inertial limit is derived analytically, using a quasi-steady state theory, and confirmed by numerical experiment. This result contradicts the claim of Lin and Papaloizou that such a limit does not exist. Orbital mobility of objects due to density wave torques may have played an important role in the early evolution of the solar system.
KW - Formation-solar system
KW - General
KW - Hydrodynamics-planets
UR - http://www.scopus.com/inward/record.url?scp=84928014059&partnerID=8YFLogxK
U2 - 10.1086/168138
DO - 10.1086/168138
M3 - Article
VL - 347
SP - 490
EP - 495
JO - The Astrophysical Journal
JF - The Astrophysical Journal
SN - 0004-637X
ER -