Orbital migration of protoplanets: The inertial limit

William R. Ward, Kerry Hourigan

Research output: Contribution to journalArticleResearchpeer-review

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 languageEnglish
Pages (from-to)490-495
Number of pages6
JournalAstrophysical Journal
Volume347
DOIs
Publication statusPublished - 1 Dec 1989
Externally publishedYes

Keywords

  • Formation-solar system
  • General
  • Hydrodynamics-planets

Cite this

@article{00887b1936ca4e2d9634a920db765937,
title = "Orbital migration of protoplanets: The inertial limit",
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.",
keywords = "Formation-solar system, General, Hydrodynamics-planets",
author = "Ward, {William R.} and Kerry Hourigan",
year = "1989",
month = "12",
day = "1",
doi = "10.1086/168138",
language = "English",
volume = "347",
pages = "490--495",
journal = "The Astrophysical Journal",
issn = "0004-637X",
publisher = "American Astronomical Society",

}

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 journalArticleResearchpeer-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 -