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http://hdl.handle.net/10773/14996
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DC Field | Value | Language |
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dc.contributor.author | Delisle, J. -B. | pt |
dc.contributor.author | Correia, A. C. M. | pt |
dc.contributor.author | Laskar, J. | pt |
dc.date.accessioned | 2016-01-06T17:05:44Z | - |
dc.date.available | 2018-07-20T14:00:51Z | - |
dc.date.issued | 2015-07 | - |
dc.identifier.issn | 0004-6361 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/14996 | - |
dc.description.abstract | We study the stability of mean-motion resonances (MMR) between two planets during their migration in a protoplanetary disk. We use an analytical model of resonances and describe the effect of the disk by a migration timescale (T-m,T-i) and an eccentricity damping timescale (T-e,T-i) for each planet (i = 1; 2 for the inner and outer planets, respectively). We show that the resonant configuration is stable if T-e,T-1/T-e,T-2 > (e(1)/e(2))(2). This general result can be used to put constraints on specific models of disk-planet interactions. For instance, using classical prescriptions for type-I migration, we show that when the angular momentum deficit (AMD) of the inner orbit is greater than the outer's orbit AMD, resonant systems must have a locally inverted disk density profile to stay locked in resonance during the migration. This inversion is very atypical of type-I migration and our criterion can thus provide an evidence against classical type-I migration. That is indeed the case for the Jupiter-mass resonant systems HD 60532b, c (3: 1 MMR), GJ 876b, c (2: 1 MMR), and HD 45364b, c (3: 2 MMR). This result may be evidence of type-II migration (gap-opening planets), which is compatible with the high masses of these planets. | pt |
dc.language.iso | eng | pt |
dc.publisher | EDP Sciences | pt |
dc.relation | UID/MAT/04106/2013 | pt |
dc.rights | openAccess | por |
dc.subject | Celestial mechanics | pt |
dc.subject | Pllanets and satellites - dynamical evolution and stability | pt |
dc.subject | Planet-disk interactions | pt |
dc.title | Stability of resonant configurations during the migration of planets and constraints on disk-planet interactions | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | A128 | pt |
degois.publication.title | Astronomy and Astrophysics | pt |
degois.publication.volume | 579 | pt |
dc.date.embargo | 2016-06-30T16:00:00Z | - |
dc.identifier.doi | 10.1051/0004-6361/201526285 | pt |
Appears in Collections: | CIDMA - Artigos DFis - Artigos GGDG - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Delisle_etal_2015.pdf | 1.86 MB | Adobe PDF | View/Open |
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