Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/31134
DC Field | Value | Language |
---|---|---|
dc.contributor.author | LANZA, Antonino Francesco | en_US |
dc.date.accessioned | 2021-11-24T14:58:31Z | - |
dc.date.available | 2021-11-24T14:58:31Z | - |
dc.date.issued | 2020 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/31134 | - |
dc.description.abstract | We introduce a model for the orbital period modulation in systems with close-by giant planets based on a spin-orbit coupling that transfers angular momentum from the orbit to the rotation of the planet and viceversa. The coupling is produced by a permanent non-axisymmetric gravitational quadrupole moment assumed to be present in the solid core of the planet. We investigate two regimes of internal planetary rotation, that is, when the planet rotates rigidly and when the rotation of its deep interior is time dependent as a consequence of a vacillating or intermittent convection in its outer shell. The model is applied to a sample of very hot Jupiters predicting maximum transit-time deviations from a constant-period ephemeris of approximately 50 seconds in the case of rigid rotation. The transit time variations of WASP-12, currently the only system showing evidence of a non-constant period, cannot be explained by assuming rigid rotation, but can be modelled in the time-dependent internal rotation regime, thus providing an alternative to their interpretation in terms of a tidal decay of the planet orbit. | en_US |
dc.language.iso | eng | en_US |
dc.title | Orbital period modulation in hot Jupiter systems | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/staa2186 | en_US |
dc.identifier.scopus | 2-s2.0-85097008408 | en_US |
dc.identifier.isi | WOS:000577137200099 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/497/3/3911/5876886 | en_US |
dc.identifier.url | http://arxiv.org/abs/2007.11264v1 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 497 | en_US |
dc.relation.issue | 3 | en_US |
dc.relation.firstpage | 3911 | en_US |
dc.relation.lastpage | 3924 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 1 | en_US |
dc.description.international | no | en_US |
dc.contributor.country | ITA | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | en_US |
dc.type.miur | 262 Articolo in rivista | en_US |
dc.identifier.adsbibcode | 2020MNRAS.497.3911L | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation::PE9_2 Planetary systems sciences | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
crisitem.author.dept | O.A. Catania | - |
crisitem.author.orcid | 0000-0001-5928-7251 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Lanza2020b.pdf | Pdf editoriale | 952.06 kB | Adobe PDF | View/Open |
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Items in DSpace are published in Open Access, unless otherwise indicated.