K2-110 b: A massive mini-Neptune exoplanet
- Autores
- Osborn, H. P.; Santerne, A.; Barros, S. C. C.; Santos, N. C.; Dumusque, X.; Malavolta, L.; Armstrong, D. J.; Hojjatpanah, S.; Demangeon, O.; Adibekyan, V.; Almenara, J. M.; Barrado, D.; Bayliss, D.; Boisse, I.; Bouchy, F.; Brown, D. J. A.; Cameron, A. C.; Charbonneau, D.; Deleuil, M.; Delgado Mena, E.; Diaz, Rodrigo Fernando; Hébrard, G.; Kirk, J.; King, G. W.; Lam, K. W. F.; Latham, D.; Lillo Box, J.; Louden, T. M.; Lovis, C.; Marmier, M.; McCormac, J.; Molinari, E.; Pepe, F.; Pollacco, D.; Sousa, S. G.; Udry, S.; Walker, S. R.
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We report the discovery of the exoplanet K2-110 b (previously EPIC212521166b) from K2 photometry orbiting in a 13.8637d period around an old, metal-poor K3 dwarf star. With a V-band magnitude of 11.9, K2-110 is particularly amenable to RV follow-up. A joint analysis of K2 photometry and high-precision RVs from 28 HARPS and HARPS-N spectra reveal it to have a radius of 2.6 ± 0.1R⊕ and a mass of 16.7 ± 3.2M⊕, hence a density of 5.2 ± 1.2 g cm-3, making it one of the most massive planets yet to be found with a sub-Neptune radius. When accounting for compression, the resulting Earth-like density is best fitted by a 0.2M⊕ hydrogen atmosphere over an 16.5M⊕ Earth-like interior, although the planet could also have significant water content. At 0.1 AU, even taking into account the old stellar age of 8 ± 3 Gyr, the planet is unlikely to have been significantly affected by EUV evaporation. However the planet likelydisc-migrated to its current position making the lack of a thick H2 atmosphere puzzling. This analysis has made K2-110 b one of the best-characterised mini-Neptunes with density constrained to less than 30%.
Fil: Osborn, H. P.. University Of Warwick; Reino Unido
Fil: Santerne, A.. Universidad de Porto; Portugal
Fil: Barros, S. C. C.. Universidad de Porto; Portugal
Fil: Santos, N. C.. Universidad de Porto; Portugal
Fil: Dumusque, X.. Universidad de Ginebra; Suiza
Fil: Malavolta, L.. Università di Padova; Italia
Fil: Armstrong, D. J.. The Queens University Of Belfast; Irlanda. University Of Warwick; Reino Unido
Fil: Hojjatpanah, S.. Universidad de Porto; Portugal
Fil: Demangeon, O.. Laboratoire D; Francia
Fil: Adibekyan, V.. Universidad de Porto; Portugal
Fil: Almenara, J. M.. Centre National de la Recherche Scientifique; Francia
Fil: Barrado, D.. Centre National de la Recherche Scientifique; Francia
Fil: Bayliss, D.. Universidad de Ginebra; Suiza
Fil: Boisse, I.. Laboratoire D; Francia
Fil: Bouchy, F.. Universidad de Ginebra; Suiza
Fil: Brown, D. J. A.. University Of Warwick; Reino Unido
Fil: Cameron, A. C.. University of St. Andrews; Reino Unido
Fil: Charbonneau, D.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Deleuil, M.. Laboratoire D; Francia
Fil: Delgado Mena, E.. Universidad de Porto; Portugal
Fil: Diaz, Rodrigo Fernando. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina. Universidad de Ginebra; Suiza
Fil: Hébrard, G.. Universite Pierre et Marie Curie; Francia
Fil: Kirk, J.. University Of Warwick; Reino Unido
Fil: King, G. W.. University Of Warwick; Reino Unido
Fil: Lam, K. W. F.. University Of Warwick; Reino Unido
Fil: Latham, D.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Lillo Box, J.. European Southern Observatory; Chile
Fil: Louden, T. M.. University Of Warwick; Reino Unido
Fil: Lovis, C.. Universidad de Ginebra; Suiza
Fil: Marmier, M.. Universidad de Ginebra; Suiza
Fil: McCormac, J.. University Of Warwick; Reino Unido
Fil: Molinari, E.. Istituto Di Astrofisica Spaziale E Fisica Cosmica; Italia
Fil: Pepe, F.. Universidad de Ginebra; Suiza
Fil: Pollacco, D.. University Of Warwick; Reino Unido
Fil: Sousa, S. G.. Universidad de Porto; Portugal
Fil: Udry, S.. Universidad de Ginebra; Suiza
Fil: Walker, S. R.. University Of Warwick; Reino Unido - Materia
- PLANETS AND SATELLITES: DETECTION
- Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/24573
Ver los metadatos del registro completo
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oai:ri.conicet.gov.ar:11336/24573 |
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network_name_str |
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spelling |
K2-110 b: A massive mini-Neptune exoplanetOsborn, H. P.Santerne, A.Barros, S. C. C.Santos, N. C.Dumusque, X.Malavolta, L.Armstrong, D. J.Hojjatpanah, S.Demangeon, O.Adibekyan, V.Almenara, J. M.Barrado, D.Bayliss, D.Boisse, I.Bouchy, F.Brown, D. J. A.Cameron, A. C.Charbonneau, D.Deleuil, M.Delgado Mena, E.Diaz, Rodrigo FernandoHébrard, G.Kirk, J.King, G. W.Lam, K. W. F.Latham, D.Lillo Box, J.Louden, T. M.Lovis, C.Marmier, M.McCormac, J.Molinari, E.Pepe, F.Pollacco, D.Sousa, S. G.Udry, S.Walker, S. R.PLANETS AND SATELLITES: DETECTIONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We report the discovery of the exoplanet K2-110 b (previously EPIC212521166b) from K2 photometry orbiting in a 13.8637d period around an old, metal-poor K3 dwarf star. With a V-band magnitude of 11.9, K2-110 is particularly amenable to RV follow-up. A joint analysis of K2 photometry and high-precision RVs from 28 HARPS and HARPS-N spectra reveal it to have a radius of 2.6 ± 0.1R⊕ and a mass of 16.7 ± 3.2M⊕, hence a density of 5.2 ± 1.2 g cm-3, making it one of the most massive planets yet to be found with a sub-Neptune radius. When accounting for compression, the resulting Earth-like density is best fitted by a 0.2M⊕ hydrogen atmosphere over an 16.5M⊕ Earth-like interior, although the planet could also have significant water content. At 0.1 AU, even taking into account the old stellar age of 8 ± 3 Gyr, the planet is unlikely to have been significantly affected by EUV evaporation. However the planet likelydisc-migrated to its current position making the lack of a thick H2 atmosphere puzzling. This analysis has made K2-110 b one of the best-characterised mini-Neptunes with density constrained to less than 30%.Fil: Osborn, H. P.. University Of Warwick; Reino UnidoFil: Santerne, A.. Universidad de Porto; PortugalFil: Barros, S. C. C.. Universidad de Porto; PortugalFil: Santos, N. C.. Universidad de Porto; PortugalFil: Dumusque, X.. Universidad de Ginebra; SuizaFil: Malavolta, L.. Università di Padova; ItaliaFil: Armstrong, D. J.. The Queens University Of Belfast; Irlanda. University Of Warwick; Reino UnidoFil: Hojjatpanah, S.. Universidad de Porto; PortugalFil: Demangeon, O.. Laboratoire D; FranciaFil: Adibekyan, V.. Universidad de Porto; PortugalFil: Almenara, J. M.. Centre National de la Recherche Scientifique; FranciaFil: Barrado, D.. Centre National de la Recherche Scientifique; FranciaFil: Bayliss, D.. Universidad de Ginebra; SuizaFil: Boisse, I.. Laboratoire D; FranciaFil: Bouchy, F.. Universidad de Ginebra; SuizaFil: Brown, D. J. A.. University Of Warwick; Reino UnidoFil: Cameron, A. C.. University of St. Andrews; Reino UnidoFil: Charbonneau, D.. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Deleuil, M.. Laboratoire D; FranciaFil: Delgado Mena, E.. Universidad de Porto; PortugalFil: Diaz, Rodrigo Fernando. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina. Universidad de Ginebra; SuizaFil: Hébrard, G.. Universite Pierre et Marie Curie; FranciaFil: Kirk, J.. University Of Warwick; Reino UnidoFil: King, G. W.. University Of Warwick; Reino UnidoFil: Lam, K. W. F.. University Of Warwick; Reino UnidoFil: Latham, D.. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Lillo Box, J.. European Southern Observatory; ChileFil: Louden, T. M.. University Of Warwick; Reino UnidoFil: Lovis, C.. Universidad de Ginebra; SuizaFil: Marmier, M.. Universidad de Ginebra; SuizaFil: McCormac, J.. University Of Warwick; Reino UnidoFil: Molinari, E.. Istituto Di Astrofisica Spaziale E Fisica Cosmica; ItaliaFil: Pepe, F.. Universidad de Ginebra; SuizaFil: Pollacco, D.. University Of Warwick; Reino UnidoFil: Sousa, S. G.. Universidad de Porto; PortugalFil: Udry, S.. Universidad de Ginebra; SuizaFil: Walker, S. R.. University Of Warwick; Reino UnidoEDP Sciences2017-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/24573Osborn, H. P.; Santerne, A.; Barros, S. C. C.; Santos, N. C.; Dumusque, X.; et al.; K2-110 b: A massive mini-Neptune exoplanet; EDP Sciences; Astronomy and Astrophysics; 604; A19; 8-2017; 1-80004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201628932info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2017/08/aa28932-16/aa28932-16.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:40:25Zoai:ri.conicet.gov.ar:11336/24573instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:40:26.184CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
K2-110 b: A massive mini-Neptune exoplanet |
title |
K2-110 b: A massive mini-Neptune exoplanet |
spellingShingle |
K2-110 b: A massive mini-Neptune exoplanet Osborn, H. P. PLANETS AND SATELLITES: DETECTION |
title_short |
K2-110 b: A massive mini-Neptune exoplanet |
title_full |
K2-110 b: A massive mini-Neptune exoplanet |
title_fullStr |
K2-110 b: A massive mini-Neptune exoplanet |
title_full_unstemmed |
K2-110 b: A massive mini-Neptune exoplanet |
title_sort |
K2-110 b: A massive mini-Neptune exoplanet |
dc.creator.none.fl_str_mv |
Osborn, H. P. Santerne, A. Barros, S. C. C. Santos, N. C. Dumusque, X. Malavolta, L. Armstrong, D. J. Hojjatpanah, S. Demangeon, O. Adibekyan, V. Almenara, J. M. Barrado, D. Bayliss, D. Boisse, I. Bouchy, F. Brown, D. J. A. Cameron, A. C. Charbonneau, D. Deleuil, M. Delgado Mena, E. Diaz, Rodrigo Fernando Hébrard, G. Kirk, J. King, G. W. Lam, K. W. F. Latham, D. Lillo Box, J. Louden, T. M. Lovis, C. Marmier, M. McCormac, J. Molinari, E. Pepe, F. Pollacco, D. Sousa, S. G. Udry, S. Walker, S. R. |
author |
Osborn, H. P. |
author_facet |
Osborn, H. P. Santerne, A. Barros, S. C. C. Santos, N. C. Dumusque, X. Malavolta, L. Armstrong, D. J. Hojjatpanah, S. Demangeon, O. Adibekyan, V. Almenara, J. M. Barrado, D. Bayliss, D. Boisse, I. Bouchy, F. Brown, D. J. A. Cameron, A. C. Charbonneau, D. Deleuil, M. Delgado Mena, E. Diaz, Rodrigo Fernando Hébrard, G. Kirk, J. King, G. W. Lam, K. W. F. Latham, D. Lillo Box, J. Louden, T. M. Lovis, C. Marmier, M. McCormac, J. Molinari, E. Pepe, F. Pollacco, D. Sousa, S. G. Udry, S. Walker, S. R. |
author_role |
author |
author2 |
Santerne, A. Barros, S. C. C. Santos, N. C. Dumusque, X. Malavolta, L. Armstrong, D. J. Hojjatpanah, S. Demangeon, O. Adibekyan, V. Almenara, J. M. Barrado, D. Bayliss, D. Boisse, I. Bouchy, F. Brown, D. J. A. Cameron, A. C. Charbonneau, D. Deleuil, M. Delgado Mena, E. Diaz, Rodrigo Fernando Hébrard, G. Kirk, J. King, G. W. Lam, K. W. F. Latham, D. Lillo Box, J. Louden, T. M. Lovis, C. Marmier, M. McCormac, J. Molinari, E. Pepe, F. Pollacco, D. Sousa, S. G. Udry, S. Walker, S. R. |
author2_role |
author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author |
dc.subject.none.fl_str_mv |
PLANETS AND SATELLITES: DETECTION |
topic |
PLANETS AND SATELLITES: DETECTION |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
We report the discovery of the exoplanet K2-110 b (previously EPIC212521166b) from K2 photometry orbiting in a 13.8637d period around an old, metal-poor K3 dwarf star. With a V-band magnitude of 11.9, K2-110 is particularly amenable to RV follow-up. A joint analysis of K2 photometry and high-precision RVs from 28 HARPS and HARPS-N spectra reveal it to have a radius of 2.6 ± 0.1R⊕ and a mass of 16.7 ± 3.2M⊕, hence a density of 5.2 ± 1.2 g cm-3, making it one of the most massive planets yet to be found with a sub-Neptune radius. When accounting for compression, the resulting Earth-like density is best fitted by a 0.2M⊕ hydrogen atmosphere over an 16.5M⊕ Earth-like interior, although the planet could also have significant water content. At 0.1 AU, even taking into account the old stellar age of 8 ± 3 Gyr, the planet is unlikely to have been significantly affected by EUV evaporation. However the planet likelydisc-migrated to its current position making the lack of a thick H2 atmosphere puzzling. This analysis has made K2-110 b one of the best-characterised mini-Neptunes with density constrained to less than 30%. Fil: Osborn, H. P.. University Of Warwick; Reino Unido Fil: Santerne, A.. Universidad de Porto; Portugal Fil: Barros, S. C. C.. Universidad de Porto; Portugal Fil: Santos, N. C.. Universidad de Porto; Portugal Fil: Dumusque, X.. Universidad de Ginebra; Suiza Fil: Malavolta, L.. Università di Padova; Italia Fil: Armstrong, D. J.. The Queens University Of Belfast; Irlanda. University Of Warwick; Reino Unido Fil: Hojjatpanah, S.. Universidad de Porto; Portugal Fil: Demangeon, O.. Laboratoire D; Francia Fil: Adibekyan, V.. Universidad de Porto; Portugal Fil: Almenara, J. M.. Centre National de la Recherche Scientifique; Francia Fil: Barrado, D.. Centre National de la Recherche Scientifique; Francia Fil: Bayliss, D.. Universidad de Ginebra; Suiza Fil: Boisse, I.. Laboratoire D; Francia Fil: Bouchy, F.. Universidad de Ginebra; Suiza Fil: Brown, D. J. A.. University Of Warwick; Reino Unido Fil: Cameron, A. C.. University of St. Andrews; Reino Unido Fil: Charbonneau, D.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Deleuil, M.. Laboratoire D; Francia Fil: Delgado Mena, E.. Universidad de Porto; Portugal Fil: Diaz, Rodrigo Fernando. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina. Universidad de Ginebra; Suiza Fil: Hébrard, G.. Universite Pierre et Marie Curie; Francia Fil: Kirk, J.. University Of Warwick; Reino Unido Fil: King, G. W.. University Of Warwick; Reino Unido Fil: Lam, K. W. F.. University Of Warwick; Reino Unido Fil: Latham, D.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Lillo Box, J.. European Southern Observatory; Chile Fil: Louden, T. M.. University Of Warwick; Reino Unido Fil: Lovis, C.. Universidad de Ginebra; Suiza Fil: Marmier, M.. Universidad de Ginebra; Suiza Fil: McCormac, J.. University Of Warwick; Reino Unido Fil: Molinari, E.. Istituto Di Astrofisica Spaziale E Fisica Cosmica; Italia Fil: Pepe, F.. Universidad de Ginebra; Suiza Fil: Pollacco, D.. University Of Warwick; Reino Unido Fil: Sousa, S. G.. Universidad de Porto; Portugal Fil: Udry, S.. Universidad de Ginebra; Suiza Fil: Walker, S. R.. University Of Warwick; Reino Unido |
description |
We report the discovery of the exoplanet K2-110 b (previously EPIC212521166b) from K2 photometry orbiting in a 13.8637d period around an old, metal-poor K3 dwarf star. With a V-band magnitude of 11.9, K2-110 is particularly amenable to RV follow-up. A joint analysis of K2 photometry and high-precision RVs from 28 HARPS and HARPS-N spectra reveal it to have a radius of 2.6 ± 0.1R⊕ and a mass of 16.7 ± 3.2M⊕, hence a density of 5.2 ± 1.2 g cm-3, making it one of the most massive planets yet to be found with a sub-Neptune radius. When accounting for compression, the resulting Earth-like density is best fitted by a 0.2M⊕ hydrogen atmosphere over an 16.5M⊕ Earth-like interior, although the planet could also have significant water content. At 0.1 AU, even taking into account the old stellar age of 8 ± 3 Gyr, the planet is unlikely to have been significantly affected by EUV evaporation. However the planet likelydisc-migrated to its current position making the lack of a thick H2 atmosphere puzzling. This analysis has made K2-110 b one of the best-characterised mini-Neptunes with density constrained to less than 30%. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-08 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/24573 Osborn, H. P.; Santerne, A.; Barros, S. C. C.; Santos, N. C.; Dumusque, X.; et al.; K2-110 b: A massive mini-Neptune exoplanet; EDP Sciences; Astronomy and Astrophysics; 604; A19; 8-2017; 1-8 0004-6361 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/24573 |
identifier_str_mv |
Osborn, H. P.; Santerne, A.; Barros, S. C. C.; Santos, N. C.; Dumusque, X.; et al.; K2-110 b: A massive mini-Neptune exoplanet; EDP Sciences; Astronomy and Astrophysics; 604; A19; 8-2017; 1-8 0004-6361 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201628932 info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2017/08/aa28932-16/aa28932-16.html |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
EDP Sciences |
publisher.none.fl_str_mv |
EDP Sciences |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844614432227852288 |
score |
13.070432 |