TOI-431/HIP 26013: A super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet

Autores
Osborn, Ares; Armstrong, David J; Cale, Bryson; Brahm, Rafael; Wittenmyer, Robert A; Dai, Fei; Crossfield, Ian J. M; Bryant, Edward M; Adibekyan, Vardan; Cloutier, Ryan; Collins, Karen A; Delgado Mena, E.; Fridlund, Malcolm; Hellier, Coel; Howell, Steve B; King, George W; Lillo Box, Jorge; Otegi, Jon; Sousa, S.; Stassun, Keivan G; Matthews, Elisabeth C; Ziegler, Carl; Ricker, George; Vanderspek, Roland; Latham, David W; Seager, S.; Winn, Joshua N.; Jenkins, Jon M; Acton, Jack S; Addison, Brett C; Diaz, Rodrigo Fernando
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present the bright (Vmag = 9.12), multiplanet system TOI-431, characterized with photometry and radial velocities (RVs). We estimate the stellar rotation period to be 30.5 ± 0.7 d using archival photometry and RVs. Transiting Exoplanet Survey Satellite (TESS) objects of Interest (TOI)-431 b is a super-Earth with a period of 0.49 d, a radius of 1.28 ± 0.04 R, a mass of 3.07 ± 0.35 M, and a density of 8.0 ± 1.0 g cm-3; TOI-431 d is a sub-Neptune with a period of 12.46 d, a radius of 3.29 ± 0.09 R, a mass of 9.90+1.53-1.49 M, and a density of 1.36 ± 0.25 g cm-3. We find a third planet, TOI-431 c, in the High Accuracy Radial velocity Planet Searcher RV data, but it is not seen to transit in the TESS light curves. It has an Msin i of 2.83+0.41-0.34 M, and a period of 4.85 d. TOI-431 d likely has an extended atmosphere and is one of the most well-suited TESS discoveries for atmospheric characterization, while the super-Earth TOI-431 b may be a stripped core. These planets straddle the radius gap, presenting an interesting case-study for atmospheric evolution, and TOI-431 b is a prime TESS discovery for the study of rocky planet phase curves.
Fil: Osborn, Ares. University of Warwick; Reino Unido
Fil: Armstrong, David J. University of Warwick; Reino Unido
Fil: Cale, Bryson. George Mason University; Estados Unidos
Fil: Brahm, Rafael. Universidad Adolfo Ibañez; Chile. Instituto de Astrofísica; Chile
Fil: Wittenmyer, Robert A. University Of Southern Queensland; Australia
Fil: Dai, Fei. Division Of Geological And Planetary Sciences; Estados Unidos
Fil: Crossfield, Ian J. M. University of Kansas; Estados Unidos
Fil: Bryant, Edward M. University of Warwick; Reino Unido
Fil: Adibekyan, Vardan. Universidad de Porto; Portugal
Fil: Cloutier, Ryan. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Collins, Karen A. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Delgado Mena, E.. Universidad de Porto; Portugal
Fil: Fridlund, Malcolm. Leiden University; Países Bajos. Chalmers University of Technology; Suecia
Fil: Hellier, Coel. Keele University; Reino Unido
Fil: Howell, Steve B. NASA Ames Research Center; Estados Unidos
Fil: King, George W. University of Warwick; Reino Unido
Fil: Lillo Box, Jorge. Consejo Superior de Investigaciones Científicas. Centro de Astrobiología; España
Fil: Otegi, Jon. Universidad de Ginebra; Suiza. Universitat Zurich; Suiza
Fil: Sousa, S.. Universidad de Porto; Portugal
Fil: Stassun, Keivan G. Vanderbilt University; Estados Unidos
Fil: Matthews, Elisabeth C. Universidad de Ginebra; Suiza. Massachusetts Institute of Technology; Estados Unidos
Fil: Ziegler, Carl. University of Toronto; Canadá
Fil: Ricker, George. Massachusetts Institute of Technology; Estados Unidos
Fil: Vanderspek, Roland. Massachusetts Institute of Technology; Estados Unidos
Fil: Latham, David W. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Seager, S.. Massachusetts Institute of Technology; Estados Unidos
Fil: Winn, Joshua N.. University of Princeton; Estados Unidos
Fil: Jenkins, Jon M. NASA Ames Research Center; Estados Unidos
Fil: Acton, Jack S. University of Leicester; Reino Unido
Fil: Addison, Brett C. University Of Southern Queensland; Australia
Fil: Diaz, Rodrigo Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias Físicas. - Universidad Nacional de San Martín. Instituto de Ciencias Físicas; Argentina
Materia
PLANETS AND SATELLITES: DETECTION
PLANETS AND SATELLITES: FUNDAMENTAL PARAMETERS
PLANETS AND SATELLITES: INDIVIDUAL: (TOI-431, TIC 31374837)
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/212405

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network_name_str CONICET Digital (CONICET)
spelling TOI-431/HIP 26013: A super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planetOsborn, AresArmstrong, David JCale, BrysonBrahm, RafaelWittenmyer, Robert ADai, FeiCrossfield, Ian J. MBryant, Edward MAdibekyan, VardanCloutier, RyanCollins, Karen ADelgado Mena, E.Fridlund, MalcolmHellier, CoelHowell, Steve BKing, George WLillo Box, JorgeOtegi, JonSousa, S.Stassun, Keivan GMatthews, Elisabeth CZiegler, CarlRicker, GeorgeVanderspek, RolandLatham, David WSeager, S.Winn, Joshua N.Jenkins, Jon MActon, Jack SAddison, Brett CDiaz, Rodrigo FernandoPLANETS AND SATELLITES: DETECTIONPLANETS AND SATELLITES: FUNDAMENTAL PARAMETERSPLANETS AND SATELLITES: INDIVIDUAL: (TOI-431, TIC 31374837)https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present the bright (Vmag = 9.12), multiplanet system TOI-431, characterized with photometry and radial velocities (RVs). We estimate the stellar rotation period to be 30.5 ± 0.7 d using archival photometry and RVs. Transiting Exoplanet Survey Satellite (TESS) objects of Interest (TOI)-431 b is a super-Earth with a period of 0.49 d, a radius of 1.28 ± 0.04 R, a mass of 3.07 ± 0.35 M, and a density of 8.0 ± 1.0 g cm-3; TOI-431 d is a sub-Neptune with a period of 12.46 d, a radius of 3.29 ± 0.09 R, a mass of 9.90+1.53-1.49 M, and a density of 1.36 ± 0.25 g cm-3. We find a third planet, TOI-431 c, in the High Accuracy Radial velocity Planet Searcher RV data, but it is not seen to transit in the TESS light curves. It has an Msin i of 2.83+0.41-0.34 M, and a period of 4.85 d. TOI-431 d likely has an extended atmosphere and is one of the most well-suited TESS discoveries for atmospheric characterization, while the super-Earth TOI-431 b may be a stripped core. These planets straddle the radius gap, presenting an interesting case-study for atmospheric evolution, and TOI-431 b is a prime TESS discovery for the study of rocky planet phase curves.Fil: Osborn, Ares. University of Warwick; Reino UnidoFil: Armstrong, David J. University of Warwick; Reino UnidoFil: Cale, Bryson. George Mason University; Estados UnidosFil: Brahm, Rafael. Universidad Adolfo Ibañez; Chile. Instituto de Astrofísica; ChileFil: Wittenmyer, Robert A. University Of Southern Queensland; AustraliaFil: Dai, Fei. Division Of Geological And Planetary Sciences; Estados UnidosFil: Crossfield, Ian J. M. University of Kansas; Estados UnidosFil: Bryant, Edward M. University of Warwick; Reino UnidoFil: Adibekyan, Vardan. Universidad de Porto; PortugalFil: Cloutier, Ryan. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Collins, Karen A. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Delgado Mena, E.. Universidad de Porto; PortugalFil: Fridlund, Malcolm. Leiden University; Países Bajos. Chalmers University of Technology; SueciaFil: Hellier, Coel. Keele University; Reino UnidoFil: Howell, Steve B. NASA Ames Research Center; Estados UnidosFil: King, George W. University of Warwick; Reino UnidoFil: Lillo Box, Jorge. Consejo Superior de Investigaciones Científicas. Centro de Astrobiología; EspañaFil: Otegi, Jon. Universidad de Ginebra; Suiza. Universitat Zurich; SuizaFil: Sousa, S.. Universidad de Porto; PortugalFil: Stassun, Keivan G. Vanderbilt University; Estados UnidosFil: Matthews, Elisabeth C. Universidad de Ginebra; Suiza. Massachusetts Institute of Technology; Estados UnidosFil: Ziegler, Carl. University of Toronto; CanadáFil: Ricker, George. Massachusetts Institute of Technology; Estados UnidosFil: Vanderspek, Roland. Massachusetts Institute of Technology; Estados UnidosFil: Latham, David W. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Seager, S.. Massachusetts Institute of Technology; Estados UnidosFil: Winn, Joshua N.. University of Princeton; Estados UnidosFil: Jenkins, Jon M. NASA Ames Research Center; Estados UnidosFil: Acton, Jack S. University of Leicester; Reino UnidoFil: Addison, Brett C. University Of Southern Queensland; AustraliaFil: Diaz, Rodrigo Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias Físicas. - Universidad Nacional de San Martín. Instituto de Ciencias Físicas; ArgentinaWiley Blackwell Publishing, Inc2021-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/212405Osborn, Ares; Armstrong, David J; Cale, Bryson; Brahm, Rafael; Wittenmyer, Robert A; et al.; TOI-431/HIP 26013: A super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 507; 2; 10-2021; 2782-28030035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stab2313info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/507/2/2782/6348103info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:51:13Zoai:ri.conicet.gov.ar:11336/212405instacron: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 09:51:13.466CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv TOI-431/HIP 26013: A super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet
title TOI-431/HIP 26013: A super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet
spellingShingle TOI-431/HIP 26013: A super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet
Osborn, Ares
PLANETS AND SATELLITES: DETECTION
PLANETS AND SATELLITES: FUNDAMENTAL PARAMETERS
PLANETS AND SATELLITES: INDIVIDUAL: (TOI-431, TIC 31374837)
title_short TOI-431/HIP 26013: A super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet
title_full TOI-431/HIP 26013: A super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet
title_fullStr TOI-431/HIP 26013: A super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet
title_full_unstemmed TOI-431/HIP 26013: A super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet
title_sort TOI-431/HIP 26013: A super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet
dc.creator.none.fl_str_mv Osborn, Ares
Armstrong, David J
Cale, Bryson
Brahm, Rafael
Wittenmyer, Robert A
Dai, Fei
Crossfield, Ian J. M
Bryant, Edward M
Adibekyan, Vardan
Cloutier, Ryan
Collins, Karen A
Delgado Mena, E.
Fridlund, Malcolm
Hellier, Coel
Howell, Steve B
King, George W
Lillo Box, Jorge
Otegi, Jon
Sousa, S.
Stassun, Keivan G
Matthews, Elisabeth C
Ziegler, Carl
Ricker, George
Vanderspek, Roland
Latham, David W
Seager, S.
Winn, Joshua N.
Jenkins, Jon M
Acton, Jack S
Addison, Brett C
Diaz, Rodrigo Fernando
author Osborn, Ares
author_facet Osborn, Ares
Armstrong, David J
Cale, Bryson
Brahm, Rafael
Wittenmyer, Robert A
Dai, Fei
Crossfield, Ian J. M
Bryant, Edward M
Adibekyan, Vardan
Cloutier, Ryan
Collins, Karen A
Delgado Mena, E.
Fridlund, Malcolm
Hellier, Coel
Howell, Steve B
King, George W
Lillo Box, Jorge
Otegi, Jon
Sousa, S.
Stassun, Keivan G
Matthews, Elisabeth C
Ziegler, Carl
Ricker, George
Vanderspek, Roland
Latham, David W
Seager, S.
Winn, Joshua N.
Jenkins, Jon M
Acton, Jack S
Addison, Brett C
Diaz, Rodrigo Fernando
author_role author
author2 Armstrong, David J
Cale, Bryson
Brahm, Rafael
Wittenmyer, Robert A
Dai, Fei
Crossfield, Ian J. M
Bryant, Edward M
Adibekyan, Vardan
Cloutier, Ryan
Collins, Karen A
Delgado Mena, E.
Fridlund, Malcolm
Hellier, Coel
Howell, Steve B
King, George W
Lillo Box, Jorge
Otegi, Jon
Sousa, S.
Stassun, Keivan G
Matthews, Elisabeth C
Ziegler, Carl
Ricker, George
Vanderspek, Roland
Latham, David W
Seager, S.
Winn, Joshua N.
Jenkins, Jon M
Acton, Jack S
Addison, Brett C
Diaz, Rodrigo Fernando
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
dc.subject.none.fl_str_mv PLANETS AND SATELLITES: DETECTION
PLANETS AND SATELLITES: FUNDAMENTAL PARAMETERS
PLANETS AND SATELLITES: INDIVIDUAL: (TOI-431, TIC 31374837)
topic PLANETS AND SATELLITES: DETECTION
PLANETS AND SATELLITES: FUNDAMENTAL PARAMETERS
PLANETS AND SATELLITES: INDIVIDUAL: (TOI-431, TIC 31374837)
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 present the bright (Vmag = 9.12), multiplanet system TOI-431, characterized with photometry and radial velocities (RVs). We estimate the stellar rotation period to be 30.5 ± 0.7 d using archival photometry and RVs. Transiting Exoplanet Survey Satellite (TESS) objects of Interest (TOI)-431 b is a super-Earth with a period of 0.49 d, a radius of 1.28 ± 0.04 R, a mass of 3.07 ± 0.35 M, and a density of 8.0 ± 1.0 g cm-3; TOI-431 d is a sub-Neptune with a period of 12.46 d, a radius of 3.29 ± 0.09 R, a mass of 9.90+1.53-1.49 M, and a density of 1.36 ± 0.25 g cm-3. We find a third planet, TOI-431 c, in the High Accuracy Radial velocity Planet Searcher RV data, but it is not seen to transit in the TESS light curves. It has an Msin i of 2.83+0.41-0.34 M, and a period of 4.85 d. TOI-431 d likely has an extended atmosphere and is one of the most well-suited TESS discoveries for atmospheric characterization, while the super-Earth TOI-431 b may be a stripped core. These planets straddle the radius gap, presenting an interesting case-study for atmospheric evolution, and TOI-431 b is a prime TESS discovery for the study of rocky planet phase curves.
Fil: Osborn, Ares. University of Warwick; Reino Unido
Fil: Armstrong, David J. University of Warwick; Reino Unido
Fil: Cale, Bryson. George Mason University; Estados Unidos
Fil: Brahm, Rafael. Universidad Adolfo Ibañez; Chile. Instituto de Astrofísica; Chile
Fil: Wittenmyer, Robert A. University Of Southern Queensland; Australia
Fil: Dai, Fei. Division Of Geological And Planetary Sciences; Estados Unidos
Fil: Crossfield, Ian J. M. University of Kansas; Estados Unidos
Fil: Bryant, Edward M. University of Warwick; Reino Unido
Fil: Adibekyan, Vardan. Universidad de Porto; Portugal
Fil: Cloutier, Ryan. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Collins, Karen A. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Delgado Mena, E.. Universidad de Porto; Portugal
Fil: Fridlund, Malcolm. Leiden University; Países Bajos. Chalmers University of Technology; Suecia
Fil: Hellier, Coel. Keele University; Reino Unido
Fil: Howell, Steve B. NASA Ames Research Center; Estados Unidos
Fil: King, George W. University of Warwick; Reino Unido
Fil: Lillo Box, Jorge. Consejo Superior de Investigaciones Científicas. Centro de Astrobiología; España
Fil: Otegi, Jon. Universidad de Ginebra; Suiza. Universitat Zurich; Suiza
Fil: Sousa, S.. Universidad de Porto; Portugal
Fil: Stassun, Keivan G. Vanderbilt University; Estados Unidos
Fil: Matthews, Elisabeth C. Universidad de Ginebra; Suiza. Massachusetts Institute of Technology; Estados Unidos
Fil: Ziegler, Carl. University of Toronto; Canadá
Fil: Ricker, George. Massachusetts Institute of Technology; Estados Unidos
Fil: Vanderspek, Roland. Massachusetts Institute of Technology; Estados Unidos
Fil: Latham, David W. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Seager, S.. Massachusetts Institute of Technology; Estados Unidos
Fil: Winn, Joshua N.. University of Princeton; Estados Unidos
Fil: Jenkins, Jon M. NASA Ames Research Center; Estados Unidos
Fil: Acton, Jack S. University of Leicester; Reino Unido
Fil: Addison, Brett C. University Of Southern Queensland; Australia
Fil: Diaz, Rodrigo Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias Físicas. - Universidad Nacional de San Martín. Instituto de Ciencias Físicas; Argentina
description We present the bright (Vmag = 9.12), multiplanet system TOI-431, characterized with photometry and radial velocities (RVs). We estimate the stellar rotation period to be 30.5 ± 0.7 d using archival photometry and RVs. Transiting Exoplanet Survey Satellite (TESS) objects of Interest (TOI)-431 b is a super-Earth with a period of 0.49 d, a radius of 1.28 ± 0.04 R, a mass of 3.07 ± 0.35 M, and a density of 8.0 ± 1.0 g cm-3; TOI-431 d is a sub-Neptune with a period of 12.46 d, a radius of 3.29 ± 0.09 R, a mass of 9.90+1.53-1.49 M, and a density of 1.36 ± 0.25 g cm-3. We find a third planet, TOI-431 c, in the High Accuracy Radial velocity Planet Searcher RV data, but it is not seen to transit in the TESS light curves. It has an Msin i of 2.83+0.41-0.34 M, and a period of 4.85 d. TOI-431 d likely has an extended atmosphere and is one of the most well-suited TESS discoveries for atmospheric characterization, while the super-Earth TOI-431 b may be a stripped core. These planets straddle the radius gap, presenting an interesting case-study for atmospheric evolution, and TOI-431 b is a prime TESS discovery for the study of rocky planet phase curves.
publishDate 2021
dc.date.none.fl_str_mv 2021-10
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/11336/212405
Osborn, Ares; Armstrong, David J; Cale, Bryson; Brahm, Rafael; Wittenmyer, Robert A; et al.; TOI-431/HIP 26013: A super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 507; 2; 10-2021; 2782-2803
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/212405
identifier_str_mv Osborn, Ares; Armstrong, David J; Cale, Bryson; Brahm, Rafael; Wittenmyer, Robert A; et al.; TOI-431/HIP 26013: A super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 507; 2; 10-2021; 2782-2803
0035-8711
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stab2313
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/507/2/2782/6348103
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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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