Coupled orbital and spin evolution of the CoRoT-7 two-planet system using a Maxwell viscoelastic rheology
We investigate the orbital and rotational evolution of the CoRoT-7 two-planet system, assuming that the innermost planet behaves like a Maxwell body. We numerically resolve the coupled differential equations governing the instantaneous deformation of the inner planet together with the orbital motion...
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| Veröffentlicht in: | Monthly notices of the Royal Astronomical Society 2016-12, Vol.463 (3), p.3249-3249 |
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| container_title | Monthly notices of the Royal Astronomical Society |
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| creator | Rodriguez, A Callegari, N Jr Correia, A CM |
| description | We investigate the orbital and rotational evolution of the CoRoT-7 two-planet system, assuming that the innermost planet behaves like a Maxwell body. We numerically resolve the coupled differential equations governing the instantaneous deformation of the inner planet together with the orbital motion of the system. We show that, depending on the relaxation time for the deformation of the planet, the orbital evolution has two distinct behaviours: for relaxation times shorter than the orbital period, we reproduce the results from classic tidal theories, for which the eccentricity is always damped. However, for longer relaxation times, the eccentricity of the inner orbit is secularly excited and can grow to high values. This mechanism provides an explanation for the present high eccentricity observed for CoRoT-7 b, as well as for other close-in super-Earths in multiple planetary systems. |
| doi_str_mv | 10.1093/mnras/stw2221 |
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We numerically resolve the coupled differential equations governing the instantaneous deformation of the inner planet together with the orbital motion of the system. We show that, depending on the relaxation time for the deformation of the planet, the orbital evolution has two distinct behaviours: for relaxation times shorter than the orbital period, we reproduce the results from classic tidal theories, for which the eccentricity is always damped. However, for longer relaxation times, the eccentricity of the inner orbit is secularly excited and can grow to high values. This mechanism provides an explanation for the present high eccentricity observed for CoRoT-7 b, as well as for other close-in super-Earths in multiple planetary systems.</description><identifier>ISSN: 0035-8711</identifier><identifier>EISSN: 1365-2966</identifier><identifier>DOI: 10.1093/mnras/stw2221</identifier><language>eng</language><publisher>London: Oxford University Press</publisher><subject>Astrophysics ; Deformation ; Differential equations ; Eccentricity ; Evolution ; Orbital mechanics ; Physics ; Planetary evolution ; Planetology ; Planets ; Relaxation time ; Rheology ; Viscoelasticity</subject><ispartof>Monthly notices of the Royal Astronomical Society, 2016-12, Vol.463 (3), p.3249-3249</ispartof><rights>Copyright Oxford University Press, UK Dec 11, 2016</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c404t-7c4dd6585ec96cc746d91337c6814560c25d08271fdf14358158edf613891b0f3</citedby><cites>FETCH-LOGICAL-c404t-7c4dd6585ec96cc746d91337c6814560c25d08271fdf14358158edf613891b0f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,27901,27902</link.rule.ids><backlink>$$Uhttps://hal.science/hal-02320356$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Rodriguez, A</creatorcontrib><creatorcontrib>Callegari, N Jr</creatorcontrib><creatorcontrib>Correia, A CM</creatorcontrib><title>Coupled orbital and spin evolution of the CoRoT-7 two-planet system using a Maxwell viscoelastic rheology</title><title>Monthly notices of the Royal Astronomical Society</title><description>We investigate the orbital and rotational evolution of the CoRoT-7 two-planet system, assuming that the innermost planet behaves like a Maxwell body. 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This mechanism provides an explanation for the present high eccentricity observed for CoRoT-7 b, as well as for other close-in super-Earths in multiple planetary systems.</description><subject>Astrophysics</subject><subject>Deformation</subject><subject>Differential equations</subject><subject>Eccentricity</subject><subject>Evolution</subject><subject>Orbital mechanics</subject><subject>Physics</subject><subject>Planetary evolution</subject><subject>Planetology</subject><subject>Planets</subject><subject>Relaxation time</subject><subject>Rheology</subject><subject>Viscoelasticity</subject><issn>0035-8711</issn><issn>1365-2966</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNqN0c9LHDEUB_BQKnSrPfYe6KUeRvPyazJHWWq3sKUgeg4xk3Ej2ck0yey6_31jVzx48vQgfAjv-74IfQVyAaRjl9sxmXyZy55SCh_QApgUDe2k_IgWhDDRqBbgE_qc8yMhhDMqF8gv4zwF1-OY7n0xAZuxx3nyI3a7GObi44jjgMvG4WW8ibdNi8s-NlMwoys4H3JxWzxnPz5gg3-bp70LAe98ttEFk4u3OG1cDPHhcIZOBhOy-_IyT9Hd9Y_b5apZ__n5a3m1biwnvDSt5X0vhRLOdtLalsu-A8ZaKxVwIYmloieKtjD0A3AmFAjl-kECUx3ck4GdovPjvxsT9JT81qSDjsbr1dVaP78Rymi9htxBtd-Pdkrx7-xy0du6eo1Q08U5a1CSC8E5a99BBWmlUp2o9Nsb-hjnNNbQVbGOA6GCVNUclU0x5-SG12WB6Oc-9f8-9Uuf7B8H6ZNf</recordid><startdate>20161211</startdate><enddate>20161211</enddate><creator>Rodriguez, A</creator><creator>Callegari, N Jr</creator><creator>Correia, A CM</creator><general>Oxford University Press</general><general>Oxford University Press (OUP): Policy P - Oxford Open Option A</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>7TG</scope><scope>KL.</scope><scope>1XC</scope><scope>VOOES</scope></search><sort><creationdate>20161211</creationdate><title>Coupled orbital and spin evolution of the CoRoT-7 two-planet system using a Maxwell viscoelastic rheology</title><author>Rodriguez, A ; Callegari, N Jr ; Correia, A CM</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c404t-7c4dd6585ec96cc746d91337c6814560c25d08271fdf14358158edf613891b0f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Astrophysics</topic><topic>Deformation</topic><topic>Differential equations</topic><topic>Eccentricity</topic><topic>Evolution</topic><topic>Orbital mechanics</topic><topic>Physics</topic><topic>Planetary evolution</topic><topic>Planetology</topic><topic>Planets</topic><topic>Relaxation time</topic><topic>Rheology</topic><topic>Viscoelasticity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rodriguez, A</creatorcontrib><creatorcontrib>Callegari, N Jr</creatorcontrib><creatorcontrib>Correia, A CM</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Monthly notices of the Royal Astronomical Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rodriguez, A</au><au>Callegari, N Jr</au><au>Correia, A CM</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Coupled orbital and spin evolution of the CoRoT-7 two-planet system using a Maxwell viscoelastic rheology</atitle><jtitle>Monthly notices of the Royal Astronomical Society</jtitle><date>2016-12-11</date><risdate>2016</risdate><volume>463</volume><issue>3</issue><spage>3249</spage><epage>3249</epage><pages>3249-3249</pages><issn>0035-8711</issn><eissn>1365-2966</eissn><abstract>We investigate the orbital and rotational evolution of the CoRoT-7 two-planet system, assuming that the innermost planet behaves like a Maxwell body. We numerically resolve the coupled differential equations governing the instantaneous deformation of the inner planet together with the orbital motion of the system. We show that, depending on the relaxation time for the deformation of the planet, the orbital evolution has two distinct behaviours: for relaxation times shorter than the orbital period, we reproduce the results from classic tidal theories, for which the eccentricity is always damped. However, for longer relaxation times, the eccentricity of the inner orbit is secularly excited and can grow to high values. This mechanism provides an explanation for the present high eccentricity observed for CoRoT-7 b, as well as for other close-in super-Earths in multiple planetary systems.</abstract><cop>London</cop><pub>Oxford University Press</pub><doi>10.1093/mnras/stw2221</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0035-8711 |
| ispartof | Monthly notices of the Royal Astronomical Society, 2016-12, Vol.463 (3), p.3249-3249 |
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| language | eng |
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| source | Oxford Open |
| subjects | Astrophysics Deformation Differential equations Eccentricity Evolution Orbital mechanics Physics Planetary evolution Planetology Planets Relaxation time Rheology Viscoelasticity |
| title | Coupled orbital and spin evolution of the CoRoT-7 two-planet system using a Maxwell viscoelastic rheology |
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