Surviving in the Hot-Neptune Desert: The Discovery of the Ultrahot Neptune TOI-3261b
- Autores
- Nabbie, Emma; Huang, Chelsea X.; Burt, Jennifer A.; Armstrong, David J.; Mamajek, Eric E.; Adibekyan, Vardan; Sousa, Sérgio G.; Lopez, Eric D.; Thorngren, Daniel; Fernández Fernández, Jorge; Li, Gongjie; Jenkins, James S.; Vines, Jose I.; Gomes da Silva, João; Wittenmyer, Robert A.; Bayliss, Daniel; Briceño, César; Collins, Karen A.; Dumusque, Xavier; Horne, Keith; F. Keniger, Marcelo Aron; Law, Nicholas M.; Lillo-Box, Jorge; Liu, Shang Fei; Serrano, Juan Ramón; Fausnaugh, Michael; Kunimoto, Michelle; Osborn, Hugh P.; Quinn, Samuel N.; Wohler, Bill
- Año de publicación
- 2024
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The recent discoveries of Neptune-sized ultra-short-period planets (USPs) challenge existing planet formation theories. It is unclear whether these residents of the Hot Neptune Desert have similar origins to smaller, rocky USPs, or if this discrete population is evidence of a different formation pathway altogether. We report the discovery of TOI-3261b, an ultrahot Neptune with an orbital period P = 0.88 day. The host star is a V = 13.2 mag, slightly supersolar metallicity ([Fe/H] ≃0.15), inactive K1.5 main-sequence star at d = 300 pc. Using data from the Transiting Exoplanet Survey Satellite and the Las Cumbres Observatory Global Telescope, we find that TOI-3261b has a radius of 3.82‑0.35+0.42 R ⊕. Moreover, radial velocities from ESPRESSO and HARPS reveal a mass of 30.3‑2.4+2.2 M ⊕, more than twice the median mass of Neptune-sized planets on longer orbits. We investigate multiple mechanisms of mass loss that can reproduce the current-day properties of TOI-3261b, simulating the evolution of the planet via tidal stripping and photoevaporation. Thermal evolution models suggest that TOI-3261b should retain an envelope potentially enriched with volatiles constituting ∼5% of its total mass. This is the second highest envelope mass fraction among ultrahot Neptunes discovered to date, making TOI-3261b an ideal candidate for atmospheric follow-up observations.
Fil: Nabbie, Emma. The University of Queensland; Australia
Fil: Huang, Chelsea X.. The University of Queensland; Australia
Fil: Burt, Jennifer A.. California Institute of Technology; Estados Unidos
Fil: Armstrong, David J.. University of Warwick; Reino Unido
Fil: Mamajek, Eric E.. California Institute of Technology; Estados Unidos
Fil: Adibekyan, Vardan. Centro de Astrofísica Da Universidade Do Porto; Portugal
Fil: Sousa, Sérgio G.. Universidad de Porto; Portugal
Fil: Lopez, Eric D.. University of Edinburgh; Reino Unido. National Aeronautics and Space Administration; Estados Unidos
Fil: Thorngren, Daniel. University Johns Hopkins; Estados Unidos
Fil: Fernández Fernández, Jorge. University of Warwick; Reino Unido
Fil: Li, Gongjie. Georgia Institute of Techology; Estados Unidos
Fil: Jenkins, James S.. Universidad Diego Portales; Chile
Fil: Vines, Jose I.. Universidad Católica del Norte; Chile
Fil: Gomes da Silva, João. Universidad de Porto; Portugal
Fil: Wittenmyer, Robert A.. University of Queensland; Australia
Fil: Bayliss, Daniel. University of Warwick; Reino Unido
Fil: Briceño, César. Cerro Tololo Inter-american Observatory; Chile
Fil: Collins, Karen A.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Dumusque, Xavier. Observatoire Astronomique de Luniversité de Genève; Suiza
Fil: Horne, Keith. University of St. Andrews; Reino Unido
Fil: F. Keniger, Marcelo Aron. University of Warwick; Reino Unido
Fil: Law, Nicholas M.. University of North Carolina; Estados Unidos
Fil: Lillo-Box, Jorge. Centro de Astrobiología; España
Fil: Liu, Shang Fei. Sun Yat-sen University; China
Fil: Serrano, Juan Ramón. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias Físicas. - Universidad Nacional de San Martín. Instituto de Ciencias Físicas; Argentina
Fil: Fausnaugh, Michael. Massachusetts Institute of Technology; Estados Unidos
Fil: Kunimoto, Michelle. Massachusetts Institute of Technology; Estados Unidos
Fil: Osborn, Hugh P.. University of Bern; Suiza
Fil: Quinn, Samuel N.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Wohler, Bill. National Aeronautics and Space Administration; Estados Unidos. Instituto Seti; Estados Unidos - Materia
-
Exoplanets
Transits
Radial velocity
Astrophysics - Earth and Planetary Astrophysics - 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:11336/269525
Ver los metadatos del registro completo
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Surviving in the Hot-Neptune Desert: The Discovery of the Ultrahot Neptune TOI-3261bNabbie, EmmaHuang, Chelsea X.Burt, Jennifer A.Armstrong, David J.Mamajek, Eric E.Adibekyan, VardanSousa, Sérgio G.Lopez, Eric D.Thorngren, DanielFernández Fernández, JorgeLi, GongjieJenkins, James S.Vines, Jose I.Gomes da Silva, JoãoWittenmyer, Robert A.Bayliss, DanielBriceño, CésarCollins, Karen A.Dumusque, XavierHorne, KeithF. Keniger, Marcelo AronLaw, Nicholas M.Lillo-Box, JorgeLiu, Shang FeiSerrano, Juan RamónFausnaugh, MichaelKunimoto, MichelleOsborn, Hugh P.Quinn, Samuel N.Wohler, BillExoplanetsTransitsRadial velocityAstrophysics - Earth and Planetary Astrophysicshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The recent discoveries of Neptune-sized ultra-short-period planets (USPs) challenge existing planet formation theories. It is unclear whether these residents of the Hot Neptune Desert have similar origins to smaller, rocky USPs, or if this discrete population is evidence of a different formation pathway altogether. We report the discovery of TOI-3261b, an ultrahot Neptune with an orbital period P = 0.88 day. The host star is a V = 13.2 mag, slightly supersolar metallicity ([Fe/H] ≃0.15), inactive K1.5 main-sequence star at d = 300 pc. Using data from the Transiting Exoplanet Survey Satellite and the Las Cumbres Observatory Global Telescope, we find that TOI-3261b has a radius of 3.82‑0.35+0.42 R ⊕. Moreover, radial velocities from ESPRESSO and HARPS reveal a mass of 30.3‑2.4+2.2 M ⊕, more than twice the median mass of Neptune-sized planets on longer orbits. We investigate multiple mechanisms of mass loss that can reproduce the current-day properties of TOI-3261b, simulating the evolution of the planet via tidal stripping and photoevaporation. Thermal evolution models suggest that TOI-3261b should retain an envelope potentially enriched with volatiles constituting ∼5% of its total mass. This is the second highest envelope mass fraction among ultrahot Neptunes discovered to date, making TOI-3261b an ideal candidate for atmospheric follow-up observations.Fil: Nabbie, Emma. The University of Queensland; AustraliaFil: Huang, Chelsea X.. The University of Queensland; AustraliaFil: Burt, Jennifer A.. California Institute of Technology; Estados UnidosFil: Armstrong, David J.. University of Warwick; Reino UnidoFil: Mamajek, Eric E.. California Institute of Technology; Estados UnidosFil: Adibekyan, Vardan. Centro de Astrofísica Da Universidade Do Porto; PortugalFil: Sousa, Sérgio G.. Universidad de Porto; PortugalFil: Lopez, Eric D.. University of Edinburgh; Reino Unido. National Aeronautics and Space Administration; Estados UnidosFil: Thorngren, Daniel. University Johns Hopkins; Estados UnidosFil: Fernández Fernández, Jorge. University of Warwick; Reino UnidoFil: Li, Gongjie. Georgia Institute of Techology; Estados UnidosFil: Jenkins, James S.. Universidad Diego Portales; ChileFil: Vines, Jose I.. Universidad Católica del Norte; ChileFil: Gomes da Silva, João. Universidad de Porto; PortugalFil: Wittenmyer, Robert A.. University of Queensland; AustraliaFil: Bayliss, Daniel. University of Warwick; Reino UnidoFil: Briceño, César. Cerro Tololo Inter-american Observatory; ChileFil: Collins, Karen A.. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Dumusque, Xavier. Observatoire Astronomique de Luniversité de Genève; SuizaFil: Horne, Keith. University of St. Andrews; Reino UnidoFil: F. Keniger, Marcelo Aron. University of Warwick; Reino UnidoFil: Law, Nicholas M.. University of North Carolina; Estados UnidosFil: Lillo-Box, Jorge. Centro de Astrobiología; EspañaFil: Liu, Shang Fei. Sun Yat-sen University; ChinaFil: Serrano, Juan Ramón. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias Físicas. - Universidad Nacional de San Martín. Instituto de Ciencias Físicas; ArgentinaFil: Fausnaugh, Michael. Massachusetts Institute of Technology; Estados UnidosFil: Kunimoto, Michelle. Massachusetts Institute of Technology; Estados UnidosFil: Osborn, Hugh P.. University of Bern; SuizaFil: Quinn, Samuel N.. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Wohler, Bill. National Aeronautics and Space Administration; Estados Unidos. Instituto Seti; Estados UnidosIOP Publishing2024-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/269525Nabbie, Emma; Huang, Chelsea X.; Burt, Jennifer A.; Armstrong, David J.; Mamajek, Eric E.; et al.; Surviving in the Hot-Neptune Desert: The Discovery of the Ultrahot Neptune TOI-3261b; IOP Publishing; Astronomical Journal; 168; 3; 8-2024; 1-150004-6256CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-3881/ad60beinfo:eu-repo/semantics/altIdentifier/doi/10.3847/1538-3881/ad60beinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:51:02Zoai:ri.conicet.gov.ar:11336/269525instacron: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 09:51:02.684CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Surviving in the Hot-Neptune Desert: The Discovery of the Ultrahot Neptune TOI-3261b |
| title |
Surviving in the Hot-Neptune Desert: The Discovery of the Ultrahot Neptune TOI-3261b |
| spellingShingle |
Surviving in the Hot-Neptune Desert: The Discovery of the Ultrahot Neptune TOI-3261b Nabbie, Emma Exoplanets Transits Radial velocity Astrophysics - Earth and Planetary Astrophysics |
| title_short |
Surviving in the Hot-Neptune Desert: The Discovery of the Ultrahot Neptune TOI-3261b |
| title_full |
Surviving in the Hot-Neptune Desert: The Discovery of the Ultrahot Neptune TOI-3261b |
| title_fullStr |
Surviving in the Hot-Neptune Desert: The Discovery of the Ultrahot Neptune TOI-3261b |
| title_full_unstemmed |
Surviving in the Hot-Neptune Desert: The Discovery of the Ultrahot Neptune TOI-3261b |
| title_sort |
Surviving in the Hot-Neptune Desert: The Discovery of the Ultrahot Neptune TOI-3261b |
| dc.creator.none.fl_str_mv |
Nabbie, Emma Huang, Chelsea X. Burt, Jennifer A. Armstrong, David J. Mamajek, Eric E. Adibekyan, Vardan Sousa, Sérgio G. Lopez, Eric D. Thorngren, Daniel Fernández Fernández, Jorge Li, Gongjie Jenkins, James S. Vines, Jose I. Gomes da Silva, João Wittenmyer, Robert A. Bayliss, Daniel Briceño, César Collins, Karen A. Dumusque, Xavier Horne, Keith F. Keniger, Marcelo Aron Law, Nicholas M. Lillo-Box, Jorge Liu, Shang Fei Serrano, Juan Ramón Fausnaugh, Michael Kunimoto, Michelle Osborn, Hugh P. Quinn, Samuel N. Wohler, Bill |
| author |
Nabbie, Emma |
| author_facet |
Nabbie, Emma Huang, Chelsea X. Burt, Jennifer A. Armstrong, David J. Mamajek, Eric E. Adibekyan, Vardan Sousa, Sérgio G. Lopez, Eric D. Thorngren, Daniel Fernández Fernández, Jorge Li, Gongjie Jenkins, James S. Vines, Jose I. Gomes da Silva, João Wittenmyer, Robert A. Bayliss, Daniel Briceño, César Collins, Karen A. Dumusque, Xavier Horne, Keith F. Keniger, Marcelo Aron Law, Nicholas M. Lillo-Box, Jorge Liu, Shang Fei Serrano, Juan Ramón Fausnaugh, Michael Kunimoto, Michelle Osborn, Hugh P. Quinn, Samuel N. Wohler, Bill |
| author_role |
author |
| author2 |
Huang, Chelsea X. Burt, Jennifer A. Armstrong, David J. Mamajek, Eric E. Adibekyan, Vardan Sousa, Sérgio G. Lopez, Eric D. Thorngren, Daniel Fernández Fernández, Jorge Li, Gongjie Jenkins, James S. Vines, Jose I. Gomes da Silva, João Wittenmyer, Robert A. Bayliss, Daniel Briceño, César Collins, Karen A. Dumusque, Xavier Horne, Keith F. Keniger, Marcelo Aron Law, Nicholas M. Lillo-Box, Jorge Liu, Shang Fei Serrano, Juan Ramón Fausnaugh, Michael Kunimoto, Michelle Osborn, Hugh P. Quinn, Samuel N. Wohler, Bill |
| 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 |
Exoplanets Transits Radial velocity Astrophysics - Earth and Planetary Astrophysics |
| topic |
Exoplanets Transits Radial velocity Astrophysics - Earth and Planetary Astrophysics |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
The recent discoveries of Neptune-sized ultra-short-period planets (USPs) challenge existing planet formation theories. It is unclear whether these residents of the Hot Neptune Desert have similar origins to smaller, rocky USPs, or if this discrete population is evidence of a different formation pathway altogether. We report the discovery of TOI-3261b, an ultrahot Neptune with an orbital period P = 0.88 day. The host star is a V = 13.2 mag, slightly supersolar metallicity ([Fe/H] ≃0.15), inactive K1.5 main-sequence star at d = 300 pc. Using data from the Transiting Exoplanet Survey Satellite and the Las Cumbres Observatory Global Telescope, we find that TOI-3261b has a radius of 3.82‑0.35+0.42 R ⊕. Moreover, radial velocities from ESPRESSO and HARPS reveal a mass of 30.3‑2.4+2.2 M ⊕, more than twice the median mass of Neptune-sized planets on longer orbits. We investigate multiple mechanisms of mass loss that can reproduce the current-day properties of TOI-3261b, simulating the evolution of the planet via tidal stripping and photoevaporation. Thermal evolution models suggest that TOI-3261b should retain an envelope potentially enriched with volatiles constituting ∼5% of its total mass. This is the second highest envelope mass fraction among ultrahot Neptunes discovered to date, making TOI-3261b an ideal candidate for atmospheric follow-up observations. Fil: Nabbie, Emma. The University of Queensland; Australia Fil: Huang, Chelsea X.. The University of Queensland; Australia Fil: Burt, Jennifer A.. California Institute of Technology; Estados Unidos Fil: Armstrong, David J.. University of Warwick; Reino Unido Fil: Mamajek, Eric E.. California Institute of Technology; Estados Unidos Fil: Adibekyan, Vardan. Centro de Astrofísica Da Universidade Do Porto; Portugal Fil: Sousa, Sérgio G.. Universidad de Porto; Portugal Fil: Lopez, Eric D.. University of Edinburgh; Reino Unido. National Aeronautics and Space Administration; Estados Unidos Fil: Thorngren, Daniel. University Johns Hopkins; Estados Unidos Fil: Fernández Fernández, Jorge. University of Warwick; Reino Unido Fil: Li, Gongjie. Georgia Institute of Techology; Estados Unidos Fil: Jenkins, James S.. Universidad Diego Portales; Chile Fil: Vines, Jose I.. Universidad Católica del Norte; Chile Fil: Gomes da Silva, João. Universidad de Porto; Portugal Fil: Wittenmyer, Robert A.. University of Queensland; Australia Fil: Bayliss, Daniel. University of Warwick; Reino Unido Fil: Briceño, César. Cerro Tololo Inter-american Observatory; Chile Fil: Collins, Karen A.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Dumusque, Xavier. Observatoire Astronomique de Luniversité de Genève; Suiza Fil: Horne, Keith. University of St. Andrews; Reino Unido Fil: F. Keniger, Marcelo Aron. University of Warwick; Reino Unido Fil: Law, Nicholas M.. University of North Carolina; Estados Unidos Fil: Lillo-Box, Jorge. Centro de Astrobiología; España Fil: Liu, Shang Fei. Sun Yat-sen University; China Fil: Serrano, Juan Ramón. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias Físicas. - Universidad Nacional de San Martín. Instituto de Ciencias Físicas; Argentina Fil: Fausnaugh, Michael. Massachusetts Institute of Technology; Estados Unidos Fil: Kunimoto, Michelle. Massachusetts Institute of Technology; Estados Unidos Fil: Osborn, Hugh P.. University of Bern; Suiza Fil: Quinn, Samuel N.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Wohler, Bill. National Aeronautics and Space Administration; Estados Unidos. Instituto Seti; Estados Unidos |
| description |
The recent discoveries of Neptune-sized ultra-short-period planets (USPs) challenge existing planet formation theories. It is unclear whether these residents of the Hot Neptune Desert have similar origins to smaller, rocky USPs, or if this discrete population is evidence of a different formation pathway altogether. We report the discovery of TOI-3261b, an ultrahot Neptune with an orbital period P = 0.88 day. The host star is a V = 13.2 mag, slightly supersolar metallicity ([Fe/H] ≃0.15), inactive K1.5 main-sequence star at d = 300 pc. Using data from the Transiting Exoplanet Survey Satellite and the Las Cumbres Observatory Global Telescope, we find that TOI-3261b has a radius of 3.82‑0.35+0.42 R ⊕. Moreover, radial velocities from ESPRESSO and HARPS reveal a mass of 30.3‑2.4+2.2 M ⊕, more than twice the median mass of Neptune-sized planets on longer orbits. We investigate multiple mechanisms of mass loss that can reproduce the current-day properties of TOI-3261b, simulating the evolution of the planet via tidal stripping and photoevaporation. Thermal evolution models suggest that TOI-3261b should retain an envelope potentially enriched with volatiles constituting ∼5% of its total mass. This is the second highest envelope mass fraction among ultrahot Neptunes discovered to date, making TOI-3261b an ideal candidate for atmospheric follow-up observations. |
| publishDate |
2024 |
| dc.date.none.fl_str_mv |
2024-08 |
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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/11336/269525 Nabbie, Emma; Huang, Chelsea X.; Burt, Jennifer A.; Armstrong, David J.; Mamajek, Eric E.; et al.; Surviving in the Hot-Neptune Desert: The Discovery of the Ultrahot Neptune TOI-3261b; IOP Publishing; Astronomical Journal; 168; 3; 8-2024; 1-15 0004-6256 CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/269525 |
| identifier_str_mv |
Nabbie, Emma; Huang, Chelsea X.; Burt, Jennifer A.; Armstrong, David J.; Mamajek, Eric E.; et al.; Surviving in the Hot-Neptune Desert: The Discovery of the Ultrahot Neptune TOI-3261b; IOP Publishing; Astronomical Journal; 168; 3; 8-2024; 1-15 0004-6256 CONICET Digital CONICET |
| dc.language.none.fl_str_mv |
eng |
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eng |
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