Gap formation by planets in turbulent protostellar disks
The processes of planet formation and migration depend intimately on the interaction between planetesimals and the gaseous disks in which they form. The formation of gaps in the disk can severely limit the mass of the planet and its migration toward the protostar. We investigate the process of gap f...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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Institute of Physics Publishing
2003
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| _version_ | 1797106393899073536 |
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| author | Winters, W Balbus, SA Hawley, J |
| author_facet | Winters, W Balbus, SA Hawley, J |
| author_sort | Winters, W |
| collection | OXFORD |
| description | The processes of planet formation and migration depend intimately on the interaction between planetesimals and the gaseous disks in which they form. The formation of gaps in the disk can severely limit the mass of the planet and its migration toward the protostar. We investigate the process of gap formation through magnetohydrodynamic simulations in which internal stress arises self-consistently from turbulence generated by the magnetorotational instability. The simulations investigate three different planetary masses and two disk temperatures to bracket the tidal (thermal) and viscous gap opening conditions. The results are in general qualitative agreement with previous simulations of gap formation but show significant differences. In the presence of MHD turbulence, the gaps produced are shallower and asymmetrically wider than those produced with pure hydrodynamics. The rate of gap formation is also slowed, with accretion occurring across the developing gap. Viscous hydrodynamics does not adequately describe the evolution, however, because planets capable of producing gaps also may be capable of affecting the level of MHD turbulence in different regions of the disk. |
| first_indexed | 2024-03-07T07:00:59Z |
| format | Journal article |
| id | oxford-uuid:ffbd1a9f-dae9-4e34-8024-28c6c19dff85 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T07:00:59Z |
| publishDate | 2003 |
| publisher | Institute of Physics Publishing |
| record_format | dspace |
| spelling | oxford-uuid:ffbd1a9f-dae9-4e34-8024-28c6c19dff852022-03-27T13:47:21ZGap formation by planets in turbulent protostellar disksJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ffbd1a9f-dae9-4e34-8024-28c6c19dff85EnglishSymplectic Elements at OxfordInstitute of Physics Publishing2003Winters, WBalbus, SAHawley, JThe processes of planet formation and migration depend intimately on the interaction between planetesimals and the gaseous disks in which they form. The formation of gaps in the disk can severely limit the mass of the planet and its migration toward the protostar. We investigate the process of gap formation through magnetohydrodynamic simulations in which internal stress arises self-consistently from turbulence generated by the magnetorotational instability. The simulations investigate three different planetary masses and two disk temperatures to bracket the tidal (thermal) and viscous gap opening conditions. The results are in general qualitative agreement with previous simulations of gap formation but show significant differences. In the presence of MHD turbulence, the gaps produced are shallower and asymmetrically wider than those produced with pure hydrodynamics. The rate of gap formation is also slowed, with accretion occurring across the developing gap. Viscous hydrodynamics does not adequately describe the evolution, however, because planets capable of producing gaps also may be capable of affecting the level of MHD turbulence in different regions of the disk. |
| spellingShingle | Winters, W Balbus, SA Hawley, J Gap formation by planets in turbulent protostellar disks |
| title | Gap formation by planets in turbulent protostellar disks |
| title_full | Gap formation by planets in turbulent protostellar disks |
| title_fullStr | Gap formation by planets in turbulent protostellar disks |
| title_full_unstemmed | Gap formation by planets in turbulent protostellar disks |
| title_short | Gap formation by planets in turbulent protostellar disks |
| title_sort | gap formation by planets in turbulent protostellar disks |
| work_keys_str_mv | AT wintersw gapformationbyplanetsinturbulentprotostellardisks AT balbussa gapformationbyplanetsinturbulentprotostellardisks AT hawleyj gapformationbyplanetsinturbulentprotostellardisks |