Publicação
Detection of co-orbital planets by combining transit and radial-velocity measurements
| Resumo: | Co-orbital planets have not yet been discovered, although they constitute a frequent by-product of planetary formation and evolution models. This lack may be due to observational biases, since the main detection methods are unable to spot co-orbital companions when they are small or near the Lagrangian equilibrium points. However, for a system with one known transiting planet (with mass m1), we can detect a co-orbital companion (with mass m2) by combining the time of mid-transit with the radial-velocity data of the star. Here, we propose a simple method that allows the detection of co-orbital companions, valid for eccentric orbits, that relies on a single parameter α, which is proportional to the mass ratio m2/m1. Therefore, when α is statistically different from zero, we have a strong candidate to harbour a co-orbital companion. We also discuss the relevance of false positives generated by different planetary configurations. © 2017 ESO. |
|---|---|
| Autores principais: | Leleu, A. |
| Outros Autores: | Robutel, P.; Correia, A. C. M.; Lillo-Box, J. |
| Assunto: | Celestial mechanics Planetary systems Planets and satellites: detection Techniques: photometric Techniques: radial velocities |
| Ano: | 2017 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade de Aveiro |
| Idioma: | inglês |
| Origem: | RIA - Repositório Institucional da Universidade de Aveiro |
| _version_ | 1877768830330077184 |
|---|---|
| author | Leleu, A. |
| author2 | Robutel, P. Correia, A. C. M. Lillo-Box, J. |
| author2_role | author author author |
| author_facet | Leleu, A. Robutel, P. Correia, A. C. M. Lillo-Box, J. |
| author_role | author |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Leleu, A.\"},{\"Person.name\":\"Robutel, P.\"},{\"Person.name\":\"Correia, A. C. M.\"},{\"Person.name\":\"Lillo-Box, J.\"}] |
| datacite.creators.creator.creatorName.fl_str_mv | Leleu, A. Robutel, P. Correia, A. C. M. Lillo-Box, J. |
| datacite.date.Accepted.fl_str_mv | 2017-03-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2017-10-31T12:02:13Z |
| datacite.date.embargoed.fl_str_mv | 2017-10-31T12:02:13Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Celestial mechanics Planetary systems Planets and satellites: detection Techniques: photometric Techniques: radial velocities |
| datacite.titles.title.fl_str_mv | Detection of co-orbital planets by combining transit and radial-velocity measurements |
| dc.creator.none.fl_str_mv | Leleu, A. Robutel, P. Correia, A. C. M. Lillo-Box, J. |
| dc.date.Accepted.fl_str_mv | 2017-03-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2017-10-31T12:02:13Z |
| dc.date.embargoed.fl_str_mv | 2017-10-31T12:02:13Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10773/18678 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | EDP sciences |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Celestial mechanics Planetary systems Planets and satellites: detection Techniques: photometric Techniques: radial velocities |
| dc.title.fl_str_mv | Detection of co-orbital planets by combining transit and radial-velocity measurements |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Co-orbital planets have not yet been discovered, although they constitute a frequent by-product of planetary formation and evolution models. This lack may be due to observational biases, since the main detection methods are unable to spot co-orbital companions when they are small or near the Lagrangian equilibrium points. However, for a system with one known transiting planet (with mass m1), we can detect a co-orbital companion (with mass m2) by combining the time of mid-transit with the radial-velocity data of the star. Here, we propose a simple method that allows the detection of co-orbital companions, valid for eccentric orbits, that relies on a single parameter α, which is proportional to the mass ratio m2/m1. Therefore, when α is statistically different from zero, we have a strong candidate to harbour a co-orbital companion. We also discuss the relevance of false positives generated by different planetary configurations. © 2017 ESO. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ria_6ac0f9d37f73521fac546d1ccafcf414 |
| identifier.url.fl_str_mv | http://hdl.handle.net/10773/18678 |
| inst_facet_str | urn:organizationAcronym:ua{{{_:::_}}}Universidade de Aveiro |
| instacron_str | ua |
| institution | Universidade de Aveiro |
| instname_str | Universidade de Aveiro |
| language | eng |
| network_acronym_str | ria |
| network_name_str | RIA - Repositório Institucional da Universidade de Aveiro |
| oai_identifier_str | oai:ria.ua.pt:10773/18678 |
| organization_str_mv | urn:organizationAcronym:ua |
| person_str_mv | Leleu, A. Robutel, P. Correia, A. C. M. Lillo-Box, J. |
| publishDate | 2017 |
| publisher.none.fl_str_mv | EDP sciences |
| repo_facet_str | urn:repositoryAcronym:ria{{{_:::_}}}RIA - Repositório Institucional da Universidade de Aveiro |
| reponame_str | RIA - Repositório Institucional da Universidade de Aveiro |
| repository_id_str | urn:repositoryAcronym:ria |
| service_str_mv | urn:repositoryAcronym:ria |
| spelling | porCo-orbital planets have not yet been discovered, although they constitute a frequent by-product of planetary formation and evolution models. This lack may be due to observational biases, since the main detection methods are unable to spot co-orbital companions when they are small or near the Lagrangian equilibrium points. However, for a system with one known transiting planet (with mass m1), we can detect a co-orbital companion (with mass m2) by combining the time of mid-transit with the radial-velocity data of the star. Here, we propose a simple method that allows the detection of co-orbital companions, valid for eccentric orbits, that relies on a single parameter α, which is proportional to the mass ratio m2/m1. Therefore, when α is statistically different from zero, we have a strong candidate to harbour a co-orbital companion. We also discuss the relevance of false positives generated by different planetary configurations. © 2017 ESO.application/pdfengEDP sciencesporDetection of co-orbital planets by combining transit and radial-velocity measurementsLeleu, A.Robutel, P.Correia, A. C. M.Lillo-Box, J.Handlehttp://hdl.handle.net/10773/18678ISSNIsPartOf0004-6361DOIIsPartOf10.1051/0004-6361/2016300732017-10-31T12:02:13Z2017-03-01T00:00:00Z2017-03http://purl.org/coar/access_right/c_abf2open accessporCelestial mechanicsporPlanetary systemsporPlanets and satellites: detectionporTechniques: photometricporTechniques: radial velocities333623 byteshttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://ria.ua.pt/bitstream/10773/18678/1/Leleu_etal_2017.pdfliteraturehttp://purl.org/coar/resource_type/c_6501journal article |
| spellingShingle | Detection of co-orbital planets by combining transit and radial-velocity measurements Leleu, A. Celestial mechanics Planetary systems Planets and satellites: detection Techniques: photometric Techniques: radial velocities |
| status | SINGLETON |
| subject.fl_str_mv | Celestial mechanics Planetary systems Planets and satellites: detection Techniques: photometric Techniques: radial velocities |
| title | Detection of co-orbital planets by combining transit and radial-velocity measurements |
| title_full | Detection of co-orbital planets by combining transit and radial-velocity measurements |
| title_fullStr | Detection of co-orbital planets by combining transit and radial-velocity measurements |
| title_full_unstemmed | Detection of co-orbital planets by combining transit and radial-velocity measurements |
| title_short | Detection of co-orbital planets by combining transit and radial-velocity measurements |
| title_sort | Detection of co-orbital planets by combining transit and radial-velocity measurements |
| topic | Celestial mechanics Planetary systems Planets and satellites: detection Techniques: photometric Techniques: radial velocities |
| topic_facet | Celestial mechanics Planetary systems Planets and satellites: detection Techniques: photometric Techniques: radial velocities |
| url | http://hdl.handle.net/10773/18678 |
| visible | 1 |
Atividades financiadas
Não foram encontrados projetos financiados.