A deeper view of the CoRoT-9 planetary system
CoRoT-9b is one of the rare long-period (P = 95.3 days) transiting giant planets with a measured mass known to date. We present a new analysis of the CoRoT-9 system based on five years of radial-velocity (RV) monitoring with HARPS and three new space-based transits observed with CoRoT and Spitzer. C...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
EDP Sciences
2017
|
| _version_ | 1797103785018916864 |
|---|---|
| author | Bonomo, AS Hébrard, G Raymond, SN Bouchy, F Etangs, A Bordé, P Aigrain, S Almenara, J-M Alonso, R Cabrera, J Csizmadia, S Damiani, C Deeg, HJ Deleuil, M Díaz, RF Erikson, A Fridlund, M Gandolfi, D Guenther, E Guillot, T Hatzes, A Izidoro, A Lovis, C Moutou, C Ollivier, M Pätzold, M Rauer, H Rouan, D Santerne, A Schneider, J |
| author_facet | Bonomo, AS Hébrard, G Raymond, SN Bouchy, F Etangs, A Bordé, P Aigrain, S Almenara, J-M Alonso, R Cabrera, J Csizmadia, S Damiani, C Deeg, HJ Deleuil, M Díaz, RF Erikson, A Fridlund, M Gandolfi, D Guenther, E Guillot, T Hatzes, A Izidoro, A Lovis, C Moutou, C Ollivier, M Pätzold, M Rauer, H Rouan, D Santerne, A Schneider, J |
| author_sort | Bonomo, AS |
| collection | OXFORD |
| description | CoRoT-9b is one of the rare long-period (P = 95.3 days) transiting giant planets with a measured mass known to date. We present a new analysis of the CoRoT-9 system based on five years of radial-velocity (RV) monitoring with HARPS and three new space-based transits observed with CoRoT and Spitzer. Combining our new data with already published measurements we redetermine the CoRoT-9 system parameters and find good agreement with the published values. We uncover a higher significance for the small but non-zero eccentricity of CoRoT-9b () and find no evidence for additional planets in the system. We use simulations of planet-planet scattering to show that the eccentricity of CoRoT-9b may have been generated by an instability in which a ∼ 50 M ⊕ planet was ejected from the system. This scattering would not have produced a spin-orbit misalignment, so we predict that the CoRoT-9b orbit should lie within a few degrees of the initial plane of the protoplanetary disk. As a consequence, any significant stellar obliquity would indicate that the disk was primordially tilted. |
| first_indexed | 2024-03-07T06:24:52Z |
| format | Journal article |
| id | oxford-uuid:f3f0d397-7363-4e85-90c5-001b913dab92 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:24:52Z |
| publishDate | 2017 |
| publisher | EDP Sciences |
| record_format | dspace |
| spelling | oxford-uuid:f3f0d397-7363-4e85-90c5-001b913dab922022-03-27T12:15:57ZA deeper view of the CoRoT-9 planetary systemJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f3f0d397-7363-4e85-90c5-001b913dab92EnglishSymplectic Elements at OxfordEDP Sciences2017Bonomo, ASHébrard, GRaymond, SNBouchy, FEtangs, ABordé, PAigrain, SAlmenara, J-MAlonso, RCabrera, JCsizmadia, SDamiani, CDeeg, HJDeleuil, MDíaz, RFErikson, AFridlund, MGandolfi, DGuenther, EGuillot, THatzes, AIzidoro, ALovis, CMoutou, COllivier, MPätzold, MRauer, HRouan, DSanterne, ASchneider, JCoRoT-9b is one of the rare long-period (P = 95.3 days) transiting giant planets with a measured mass known to date. We present a new analysis of the CoRoT-9 system based on five years of radial-velocity (RV) monitoring with HARPS and three new space-based transits observed with CoRoT and Spitzer. Combining our new data with already published measurements we redetermine the CoRoT-9 system parameters and find good agreement with the published values. We uncover a higher significance for the small but non-zero eccentricity of CoRoT-9b () and find no evidence for additional planets in the system. We use simulations of planet-planet scattering to show that the eccentricity of CoRoT-9b may have been generated by an instability in which a ∼ 50 M ⊕ planet was ejected from the system. This scattering would not have produced a spin-orbit misalignment, so we predict that the CoRoT-9b orbit should lie within a few degrees of the initial plane of the protoplanetary disk. As a consequence, any significant stellar obliquity would indicate that the disk was primordially tilted. |
| spellingShingle | Bonomo, AS Hébrard, G Raymond, SN Bouchy, F Etangs, A Bordé, P Aigrain, S Almenara, J-M Alonso, R Cabrera, J Csizmadia, S Damiani, C Deeg, HJ Deleuil, M Díaz, RF Erikson, A Fridlund, M Gandolfi, D Guenther, E Guillot, T Hatzes, A Izidoro, A Lovis, C Moutou, C Ollivier, M Pätzold, M Rauer, H Rouan, D Santerne, A Schneider, J A deeper view of the CoRoT-9 planetary system |
| title | A deeper view of the CoRoT-9 planetary system |
| title_full | A deeper view of the CoRoT-9 planetary system |
| title_fullStr | A deeper view of the CoRoT-9 planetary system |
| title_full_unstemmed | A deeper view of the CoRoT-9 planetary system |
| title_short | A deeper view of the CoRoT-9 planetary system |
| title_sort | deeper view of the corot 9 planetary system |
| work_keys_str_mv | AT bonomoas adeeperviewofthecorot9planetarysystem AT hebrardg adeeperviewofthecorot9planetarysystem AT raymondsn adeeperviewofthecorot9planetarysystem AT bouchyf adeeperviewofthecorot9planetarysystem AT etangsa adeeperviewofthecorot9planetarysystem AT bordep adeeperviewofthecorot9planetarysystem AT aigrains adeeperviewofthecorot9planetarysystem AT almenarajm adeeperviewofthecorot9planetarysystem AT alonsor adeeperviewofthecorot9planetarysystem AT cabreraj adeeperviewofthecorot9planetarysystem AT csizmadias adeeperviewofthecorot9planetarysystem AT damianic adeeperviewofthecorot9planetarysystem AT deeghj adeeperviewofthecorot9planetarysystem AT deleuilm adeeperviewofthecorot9planetarysystem AT diazrf adeeperviewofthecorot9planetarysystem AT eriksona adeeperviewofthecorot9planetarysystem AT fridlundm adeeperviewofthecorot9planetarysystem AT gandolfid adeeperviewofthecorot9planetarysystem AT guenthere adeeperviewofthecorot9planetarysystem AT guillott adeeperviewofthecorot9planetarysystem AT hatzesa adeeperviewofthecorot9planetarysystem AT izidoroa adeeperviewofthecorot9planetarysystem AT lovisc adeeperviewofthecorot9planetarysystem AT moutouc adeeperviewofthecorot9planetarysystem AT ollivierm adeeperviewofthecorot9planetarysystem AT patzoldm adeeperviewofthecorot9planetarysystem AT rauerh adeeperviewofthecorot9planetarysystem AT rouand adeeperviewofthecorot9planetarysystem AT santernea adeeperviewofthecorot9planetarysystem AT schneiderj adeeperviewofthecorot9planetarysystem AT bonomoas deeperviewofthecorot9planetarysystem AT hebrardg deeperviewofthecorot9planetarysystem AT raymondsn deeperviewofthecorot9planetarysystem AT bouchyf deeperviewofthecorot9planetarysystem AT etangsa deeperviewofthecorot9planetarysystem AT bordep deeperviewofthecorot9planetarysystem AT aigrains deeperviewofthecorot9planetarysystem AT almenarajm deeperviewofthecorot9planetarysystem AT alonsor deeperviewofthecorot9planetarysystem AT cabreraj deeperviewofthecorot9planetarysystem AT csizmadias deeperviewofthecorot9planetarysystem AT damianic deeperviewofthecorot9planetarysystem AT deeghj deeperviewofthecorot9planetarysystem AT deleuilm deeperviewofthecorot9planetarysystem AT diazrf deeperviewofthecorot9planetarysystem AT eriksona deeperviewofthecorot9planetarysystem AT fridlundm deeperviewofthecorot9planetarysystem AT gandolfid deeperviewofthecorot9planetarysystem AT guenthere deeperviewofthecorot9planetarysystem AT guillott deeperviewofthecorot9planetarysystem AT hatzesa deeperviewofthecorot9planetarysystem AT izidoroa deeperviewofthecorot9planetarysystem AT lovisc deeperviewofthecorot9planetarysystem AT moutouc deeperviewofthecorot9planetarysystem AT ollivierm deeperviewofthecorot9planetarysystem AT patzoldm deeperviewofthecorot9planetarysystem AT rauerh deeperviewofthecorot9planetarysystem AT rouand deeperviewofthecorot9planetarysystem AT santernea deeperviewofthecorot9planetarysystem AT schneiderj deeperviewofthecorot9planetarysystem |