GJ 3090 b: one of the most favourable mini-Neptune for atmospheric characterisation
- Autores
- Almenara, J. M.; Bonfils, X.; Otegi, J. F.; Attia, O.; Turbet, M.; Astudillo Defru, Nicola; Collins, K .A.; Polanski, A. S.; Bourrier, V.; Hellier, C.; Ziegler, C.; Bouchy, F.; Briceno, C.; Charbonneau, D.; Cointepas, M.; Collins, K .I.; Crossfield, I.; Delfosse, X.; Diaz, Rodrigo Fernando; Dorn, C.; Doty, J.P.; Forveille, T.; Gaisné, G.; Gan, T.; Myers, G.; Seager, S.; Shporer, A.; Tan, T. G.; Twicken, J. D.; Winn, J.
- Año de publicación
- 2022
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We report the detection of GJ 3090 b (TOI-177.01), a mini-Neptune on a 2.9-day orbit transiting a bright (K = 7.3 mag) M2 dwarf located at 22 pc. The planet was identified by the Transiting Exoplanet Survey Satellite and was confirmed with the High Accuracy Radial velocity Planet Searcher radial velocities. Seeing-limited photometry and speckle imaging rule out nearby eclipsing binaries. Additional transits were observed with the LCOGT, Spitzer, and ExTrA telescopes. We characterise the star to have a mass of 0.519 ± 0.013 M and a radius of 0.516 ± 0.016 R . We modelled the transit light curves and radial velocity measurements and obtained a planetary mass of 3.34 ± 0.72 ME, a radius of 2.13 ± 0.11 RE, and a mean density of 1.89+0.52 −0.45 g/cm3 . The low density of the planet implies the presence of volatiles, and its radius and insolation place it immediately above the radius valley at the lower end of the mini-Neptune cluster. A coupled atmospheric and dynamical evolution analysis of the planet is inconsistent with a pure H-He atmosphere and favours a heavy mean molecular weight atmosphere. The transmission spectroscopy metric of 221+66 −46 means that GJ 3090 b is the second or third most favourable mini-Neptune after GJ 1214 b whose atmosphere may be characterised. At almost half the mass of GJ 1214 b, GJ 3090 b is an excellent probe of the edge of the transition between super-Earths and mini-Neptunes. We identify an additional signal in the radial velocity data that we attribute to a planet candidate with an orbital period of 13 days and a mass of 17.1+8.9 −3.2 ME, whose transits are not detected.
Fil: Almenara, J. M.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Bonfils, X.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Otegi, J. F.. Université de Genève; Suiza. Universitat Zurich; Suiza
Fil: Attia, O.. Université de Genève; Suiza
Fil: Turbet, M.. Université de Genève; Suiza
Fil: Astudillo Defru, Nicola. Universidad Católica de la Santísima Concepción; Chile
Fil: Collins, K .A.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Polanski, A. S.. University of Kansas; Estados Unidos
Fil: Bourrier, V.. University of Kansas; Estados Unidos
Fil: Hellier, C.. Keele University; Reino Unido
Fil: Ziegler, C.. Stephen F. Austin State University; Estados Unidos
Fil: Bouchy, F.. Université de Genève; Suiza
Fil: Briceno, C.. Soar Telescope/nsf's Noirlab; Chile
Fil: Charbonneau, D.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Cointepas, M.. Université de Genève; Francia. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Collins, K .I.. George Mason University; Estados Unidos
Fil: Crossfield, I.. University of Kansas; Estados Unidos
Fil: Delfosse, X.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia
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. Universidad Nacional de San Martín; Argentina
Fil: Dorn, C.. Universitat Zurich; Suiza
Fil: Doty, J.P.. Noqsi Aerospace Ltd.; Estados Unidos
Fil: Forveille, T.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Gaisné, G.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Gan, T.. Tsinghua University; China
Fil: Myers, G.. American Association of Variable Star Observers; Estados Unidos
Fil: Seager, S.. Massachusetts Institute of Technology; Estados Unidos
Fil: Shporer, A.. Massachusetts Institute of Technology; Estados Unidos
Fil: Tan, T. G.. Curtin University; Australia. Perth Exoplanet Survey Telescope; Australia
Fil: Twicken, J. D.. Curtin University; Australia. National Aeronautics and Space Administration; Estados Unidos
Fil: Winn, J.. University of Princeton; Estados Unidos - Materia
-
PLANETARY SYSTEMS
STARS: INDIVIDUAL: GJ 3090
TECHNIQUES: PHOTOMETRIC
TECHNIQUES: RADIAL VELOCITIES - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/229991
Ver los metadatos del registro completo
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GJ 3090 b: one of the most favourable mini-Neptune for atmospheric characterisationAlmenara, J. M.Bonfils, X.Otegi, J. F.Attia, O.Turbet, M.Astudillo Defru, NicolaCollins, K .A.Polanski, A. S.Bourrier, V.Hellier, C.Ziegler, C.Bouchy, F.Briceno, C.Charbonneau, D.Cointepas, M.Collins, K .I.Crossfield, I.Delfosse, X.Diaz, Rodrigo FernandoDorn, C.Doty, J.P.Forveille, T.Gaisné, G.Gan, T.Myers, G.Seager, S.Shporer, A.Tan, T. G.Twicken, J. D.Winn, J.PLANETARY SYSTEMSSTARS: INDIVIDUAL: GJ 3090TECHNIQUES: PHOTOMETRICTECHNIQUES: RADIAL VELOCITIEShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We report the detection of GJ 3090 b (TOI-177.01), a mini-Neptune on a 2.9-day orbit transiting a bright (K = 7.3 mag) M2 dwarf located at 22 pc. The planet was identified by the Transiting Exoplanet Survey Satellite and was confirmed with the High Accuracy Radial velocity Planet Searcher radial velocities. Seeing-limited photometry and speckle imaging rule out nearby eclipsing binaries. Additional transits were observed with the LCOGT, Spitzer, and ExTrA telescopes. We characterise the star to have a mass of 0.519 ± 0.013 M and a radius of 0.516 ± 0.016 R . We modelled the transit light curves and radial velocity measurements and obtained a planetary mass of 3.34 ± 0.72 ME, a radius of 2.13 ± 0.11 RE, and a mean density of 1.89+0.52 −0.45 g/cm3 . The low density of the planet implies the presence of volatiles, and its radius and insolation place it immediately above the radius valley at the lower end of the mini-Neptune cluster. A coupled atmospheric and dynamical evolution analysis of the planet is inconsistent with a pure H-He atmosphere and favours a heavy mean molecular weight atmosphere. The transmission spectroscopy metric of 221+66 −46 means that GJ 3090 b is the second or third most favourable mini-Neptune after GJ 1214 b whose atmosphere may be characterised. At almost half the mass of GJ 1214 b, GJ 3090 b is an excellent probe of the edge of the transition between super-Earths and mini-Neptunes. We identify an additional signal in the radial velocity data that we attribute to a planet candidate with an orbital period of 13 days and a mass of 17.1+8.9 −3.2 ME, whose transits are not detected.Fil: Almenara, J. M.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; FranciaFil: Bonfils, X.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; FranciaFil: Otegi, J. F.. Université de Genève; Suiza. Universitat Zurich; SuizaFil: Attia, O.. Université de Genève; SuizaFil: Turbet, M.. Université de Genève; SuizaFil: Astudillo Defru, Nicola. Universidad Católica de la Santísima Concepción; ChileFil: Collins, K .A.. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Polanski, A. S.. University of Kansas; Estados UnidosFil: Bourrier, V.. University of Kansas; Estados UnidosFil: Hellier, C.. Keele University; Reino UnidoFil: Ziegler, C.. Stephen F. Austin State University; Estados UnidosFil: Bouchy, F.. Université de Genève; SuizaFil: Briceno, C.. Soar Telescope/nsf's Noirlab; ChileFil: Charbonneau, D.. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Cointepas, M.. Université de Genève; Francia. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; FranciaFil: Collins, K .I.. George Mason University; Estados UnidosFil: Crossfield, I.. University of Kansas; Estados UnidosFil: Delfosse, X.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; FranciaFil: Diaz, Rodrigo Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias Físicas. - Universidad Nacional de San Martín. Instituto de Ciencias Físicas; Argentina. Universidad Nacional de San Martín; ArgentinaFil: Dorn, C.. Universitat Zurich; SuizaFil: Doty, J.P.. Noqsi Aerospace Ltd.; Estados UnidosFil: Forveille, T.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; FranciaFil: Gaisné, G.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; FranciaFil: Gan, T.. Tsinghua University; ChinaFil: Myers, G.. American Association of Variable Star Observers; Estados UnidosFil: Seager, S.. Massachusetts Institute of Technology; Estados UnidosFil: Shporer, A.. Massachusetts Institute of Technology; Estados UnidosFil: Tan, T. G.. Curtin University; Australia. Perth Exoplanet Survey Telescope; AustraliaFil: Twicken, J. D.. Curtin University; Australia. National Aeronautics and Space Administration; Estados UnidosFil: Winn, J.. University of Princeton; Estados UnidosEDP Sciences2022-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/229991Almenara, J. M.; Bonfils, X.; Otegi, J. F.; Attia, O.; Turbet, M.; et al.; GJ 3090 b: one of the most favourable mini-Neptune for atmospheric characterisation; EDP Sciences; Astronomy and Astrophysics; 665; 9-2022; 1-250004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202243975info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/full_html/2022/09/aa43975-22/aa43975-22.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 Técnicas2025-10-22T11:10:36Zoai:ri.conicet.gov.ar:11336/229991instacron: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:34982025-10-22 11:10:37.113CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
GJ 3090 b: one of the most favourable mini-Neptune for atmospheric characterisation |
| title |
GJ 3090 b: one of the most favourable mini-Neptune for atmospheric characterisation |
| spellingShingle |
GJ 3090 b: one of the most favourable mini-Neptune for atmospheric characterisation Almenara, J. M. PLANETARY SYSTEMS STARS: INDIVIDUAL: GJ 3090 TECHNIQUES: PHOTOMETRIC TECHNIQUES: RADIAL VELOCITIES |
| title_short |
GJ 3090 b: one of the most favourable mini-Neptune for atmospheric characterisation |
| title_full |
GJ 3090 b: one of the most favourable mini-Neptune for atmospheric characterisation |
| title_fullStr |
GJ 3090 b: one of the most favourable mini-Neptune for atmospheric characterisation |
| title_full_unstemmed |
GJ 3090 b: one of the most favourable mini-Neptune for atmospheric characterisation |
| title_sort |
GJ 3090 b: one of the most favourable mini-Neptune for atmospheric characterisation |
| dc.creator.none.fl_str_mv |
Almenara, J. M. Bonfils, X. Otegi, J. F. Attia, O. Turbet, M. Astudillo Defru, Nicola Collins, K .A. Polanski, A. S. Bourrier, V. Hellier, C. Ziegler, C. Bouchy, F. Briceno, C. Charbonneau, D. Cointepas, M. Collins, K .I. Crossfield, I. Delfosse, X. Diaz, Rodrigo Fernando Dorn, C. Doty, J.P. Forveille, T. Gaisné, G. Gan, T. Myers, G. Seager, S. Shporer, A. Tan, T. G. Twicken, J. D. Winn, J. |
| author |
Almenara, J. M. |
| author_facet |
Almenara, J. M. Bonfils, X. Otegi, J. F. Attia, O. Turbet, M. Astudillo Defru, Nicola Collins, K .A. Polanski, A. S. Bourrier, V. Hellier, C. Ziegler, C. Bouchy, F. Briceno, C. Charbonneau, D. Cointepas, M. Collins, K .I. Crossfield, I. Delfosse, X. Diaz, Rodrigo Fernando Dorn, C. Doty, J.P. Forveille, T. Gaisné, G. Gan, T. Myers, G. Seager, S. Shporer, A. Tan, T. G. Twicken, J. D. Winn, J. |
| author_role |
author |
| author2 |
Bonfils, X. Otegi, J. F. Attia, O. Turbet, M. Astudillo Defru, Nicola Collins, K .A. Polanski, A. S. Bourrier, V. Hellier, C. Ziegler, C. Bouchy, F. Briceno, C. Charbonneau, D. Cointepas, M. Collins, K .I. Crossfield, I. Delfosse, X. Diaz, Rodrigo Fernando Dorn, C. Doty, J.P. Forveille, T. Gaisné, G. Gan, T. Myers, G. Seager, S. Shporer, A. Tan, T. G. Twicken, J. D. Winn, J. |
| 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 |
| dc.subject.none.fl_str_mv |
PLANETARY SYSTEMS STARS: INDIVIDUAL: GJ 3090 TECHNIQUES: PHOTOMETRIC TECHNIQUES: RADIAL VELOCITIES |
| topic |
PLANETARY SYSTEMS STARS: INDIVIDUAL: GJ 3090 TECHNIQUES: PHOTOMETRIC TECHNIQUES: RADIAL VELOCITIES |
| 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 detection of GJ 3090 b (TOI-177.01), a mini-Neptune on a 2.9-day orbit transiting a bright (K = 7.3 mag) M2 dwarf located at 22 pc. The planet was identified by the Transiting Exoplanet Survey Satellite and was confirmed with the High Accuracy Radial velocity Planet Searcher radial velocities. Seeing-limited photometry and speckle imaging rule out nearby eclipsing binaries. Additional transits were observed with the LCOGT, Spitzer, and ExTrA telescopes. We characterise the star to have a mass of 0.519 ± 0.013 M and a radius of 0.516 ± 0.016 R . We modelled the transit light curves and radial velocity measurements and obtained a planetary mass of 3.34 ± 0.72 ME, a radius of 2.13 ± 0.11 RE, and a mean density of 1.89+0.52 −0.45 g/cm3 . The low density of the planet implies the presence of volatiles, and its radius and insolation place it immediately above the radius valley at the lower end of the mini-Neptune cluster. A coupled atmospheric and dynamical evolution analysis of the planet is inconsistent with a pure H-He atmosphere and favours a heavy mean molecular weight atmosphere. The transmission spectroscopy metric of 221+66 −46 means that GJ 3090 b is the second or third most favourable mini-Neptune after GJ 1214 b whose atmosphere may be characterised. At almost half the mass of GJ 1214 b, GJ 3090 b is an excellent probe of the edge of the transition between super-Earths and mini-Neptunes. We identify an additional signal in the radial velocity data that we attribute to a planet candidate with an orbital period of 13 days and a mass of 17.1+8.9 −3.2 ME, whose transits are not detected. Fil: Almenara, J. M.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia Fil: Bonfils, X.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia Fil: Otegi, J. F.. Université de Genève; Suiza. Universitat Zurich; Suiza Fil: Attia, O.. Université de Genève; Suiza Fil: Turbet, M.. Université de Genève; Suiza Fil: Astudillo Defru, Nicola. Universidad Católica de la Santísima Concepción; Chile Fil: Collins, K .A.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Polanski, A. S.. University of Kansas; Estados Unidos Fil: Bourrier, V.. University of Kansas; Estados Unidos Fil: Hellier, C.. Keele University; Reino Unido Fil: Ziegler, C.. Stephen F. Austin State University; Estados Unidos Fil: Bouchy, F.. Université de Genève; Suiza Fil: Briceno, C.. Soar Telescope/nsf's Noirlab; Chile Fil: Charbonneau, D.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Cointepas, M.. Université de Genève; Francia. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia Fil: Collins, K .I.. George Mason University; Estados Unidos Fil: Crossfield, I.. University of Kansas; Estados Unidos Fil: Delfosse, X.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia 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. Universidad Nacional de San Martín; Argentina Fil: Dorn, C.. Universitat Zurich; Suiza Fil: Doty, J.P.. Noqsi Aerospace Ltd.; Estados Unidos Fil: Forveille, T.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia Fil: Gaisné, G.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia Fil: Gan, T.. Tsinghua University; China Fil: Myers, G.. American Association of Variable Star Observers; Estados Unidos Fil: Seager, S.. Massachusetts Institute of Technology; Estados Unidos Fil: Shporer, A.. Massachusetts Institute of Technology; Estados Unidos Fil: Tan, T. G.. Curtin University; Australia. Perth Exoplanet Survey Telescope; Australia Fil: Twicken, J. D.. Curtin University; Australia. National Aeronautics and Space Administration; Estados Unidos Fil: Winn, J.. University of Princeton; Estados Unidos |
| description |
We report the detection of GJ 3090 b (TOI-177.01), a mini-Neptune on a 2.9-day orbit transiting a bright (K = 7.3 mag) M2 dwarf located at 22 pc. The planet was identified by the Transiting Exoplanet Survey Satellite and was confirmed with the High Accuracy Radial velocity Planet Searcher radial velocities. Seeing-limited photometry and speckle imaging rule out nearby eclipsing binaries. Additional transits were observed with the LCOGT, Spitzer, and ExTrA telescopes. We characterise the star to have a mass of 0.519 ± 0.013 M and a radius of 0.516 ± 0.016 R . We modelled the transit light curves and radial velocity measurements and obtained a planetary mass of 3.34 ± 0.72 ME, a radius of 2.13 ± 0.11 RE, and a mean density of 1.89+0.52 −0.45 g/cm3 . The low density of the planet implies the presence of volatiles, and its radius and insolation place it immediately above the radius valley at the lower end of the mini-Neptune cluster. A coupled atmospheric and dynamical evolution analysis of the planet is inconsistent with a pure H-He atmosphere and favours a heavy mean molecular weight atmosphere. The transmission spectroscopy metric of 221+66 −46 means that GJ 3090 b is the second or third most favourable mini-Neptune after GJ 1214 b whose atmosphere may be characterised. At almost half the mass of GJ 1214 b, GJ 3090 b is an excellent probe of the edge of the transition between super-Earths and mini-Neptunes. We identify an additional signal in the radial velocity data that we attribute to a planet candidate with an orbital period of 13 days and a mass of 17.1+8.9 −3.2 ME, whose transits are not detected. |
| publishDate |
2022 |
| dc.date.none.fl_str_mv |
2022-09 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://hdl.handle.net/11336/229991 Almenara, J. M.; Bonfils, X.; Otegi, J. F.; Attia, O.; Turbet, M.; et al.; GJ 3090 b: one of the most favourable mini-Neptune for atmospheric characterisation; EDP Sciences; Astronomy and Astrophysics; 665; 9-2022; 1-25 0004-6361 CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/229991 |
| identifier_str_mv |
Almenara, J. M.; Bonfils, X.; Otegi, J. F.; Attia, O.; Turbet, M.; et al.; GJ 3090 b: one of the most favourable mini-Neptune for atmospheric characterisation; EDP Sciences; Astronomy and Astrophysics; 665; 9-2022; 1-25 0004-6361 CONICET Digital CONICET |
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eng |
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eng |
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info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202243975 info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/full_html/2022/09/aa43975-22/aa43975-22.html |
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info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
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EDP Sciences |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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