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
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/212405
Ver los metadatos del registro completo
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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 Técnicas2025-10-15T14:45:49Zoai: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:34982025-10-15 14:45:49.515CONICET 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 |
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info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
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openAccess |
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https://creativecommons.org/licenses/by/2.5/ar/ |
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application/pdf application/pdf application/pdf |
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Wiley Blackwell Publishing, Inc |
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Wiley Blackwell Publishing, Inc |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.22299 |