A sub-Neptune and a non-transiting Neptune-mass companion unveiled by ESPRESSO around the bright late-F dwarf HD 5278 (TOI-130)
Context. Transiting sub-Neptune-type planets, with radii approximately between 2 and 4 R⊕, are of particular interest as their study allows us to gain insight into the formation and evolution of a class of planets that are not found in our Solar System. Aims. We exploit the extreme radial velocity (...
| Autores: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Instituto Nacional de Técnica Aeroespacial (INTA) |
| Repositorio: | DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial |
| OAI Identifier: | oai:digital.inta.es:20.500.12666/643 |
| Acceso en línea: | https://www.aanda.org/articles/aa/abs/2021/04/aa40034-20/aa40034-20.html http://hdl.handle.net/20.500.12666/643 |
| Access Level: | acceso abierto |
| Palabra clave: | Planetary systems Planets and satellites: composition Stars: individual: HD 5278 (TOI-130) Techniques: radial velocities Techniques: photometric Methods: miscellaneous |
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A sub-Neptune and a non-transiting Neptune-mass companion unveiled by ESPRESSO around the bright late-F dwarf HD 5278 (TOI-130) |
| title |
A sub-Neptune and a non-transiting Neptune-mass companion unveiled by ESPRESSO around the bright late-F dwarf HD 5278 (TOI-130) |
| spellingShingle |
A sub-Neptune and a non-transiting Neptune-mass companion unveiled by ESPRESSO around the bright late-F dwarf HD 5278 (TOI-130) Sozzetti, A. Planetary systems Planets and satellites: composition Stars: individual: HD 5278 (TOI-130) Techniques: radial velocities Techniques: photometric Methods: miscellaneous |
| title_short |
A sub-Neptune and a non-transiting Neptune-mass companion unveiled by ESPRESSO around the bright late-F dwarf HD 5278 (TOI-130) |
| title_full |
A sub-Neptune and a non-transiting Neptune-mass companion unveiled by ESPRESSO around the bright late-F dwarf HD 5278 (TOI-130) |
| title_fullStr |
A sub-Neptune and a non-transiting Neptune-mass companion unveiled by ESPRESSO around the bright late-F dwarf HD 5278 (TOI-130) |
| title_full_unstemmed |
A sub-Neptune and a non-transiting Neptune-mass companion unveiled by ESPRESSO around the bright late-F dwarf HD 5278 (TOI-130) |
| title_sort |
A sub-Neptune and a non-transiting Neptune-mass companion unveiled by ESPRESSO around the bright late-F dwarf HD 5278 (TOI-130) |
| dc.creator.none.fl_str_mv |
Sozzetti, A. Damasso, M. Bonomo, A. S. Alibert, Y. Sousa, S. G. Adibekyan, V. Zapatero Osorio, M. R. González Hernández, J. I. Barros, S. C. C. Lillo Box, J. Stassun, K. G. Winn, J. N. Cristiani, S. Pepe, Francesco Rebolo, R. Santos, Nuno C. Allart, R. Barclay, T. Bouchy, F. Cabral, A. Ciardi, D. R. Di Marcantonio, P. D´Odorico, V. Ehrenreich, D. Fausnaugh, M. Figueira, P. Haldemann, J. Jenkins, J. M. Latham, D. W. Lavie, B. Lo Curto, G. Lovis, C. Martins, C. J. A. P. Mégevand, D. Mehner, A. Micela, G. Molaro, P. Nunes, Nelson J. Oshagh, M. Otegi, Jon F. Pallé, E. Poretti, E. Ricker, George Rodríguez, D. Seager, S. Suárez Mascareño, A. Twicken, J. D. Udry, S. |
| author |
Sozzetti, A. |
| author_facet |
Sozzetti, A. Damasso, M. Bonomo, A. S. Alibert, Y. Sousa, S. G. Adibekyan, V. Zapatero Osorio, M. R. González Hernández, J. I. Barros, S. C. C. Lillo Box, J. Stassun, K. G. Winn, J. N. Cristiani, S. Pepe, Francesco Rebolo, R. Santos, Nuno C. Allart, R. Barclay, T. Bouchy, F. Cabral, A. Ciardi, D. R. Di Marcantonio, P. D´Odorico, V. Ehrenreich, D. Fausnaugh, M. Figueira, P. Haldemann, J. Jenkins, J. M. Latham, D. W. Lavie, B. Lo Curto, G. Lovis, C. Martins, C. J. A. P. Mégevand, D. Mehner, A. Micela, G. Molaro, P. Nunes, Nelson J. Oshagh, M. Otegi, Jon F. Pallé, E. Poretti, E. Ricker, George Rodríguez, D. Seager, S. Suárez Mascareño, A. Twicken, J. D. Udry, S. |
| author_role |
author |
| author2 |
Damasso, M. Bonomo, A. S. Alibert, Y. Sousa, S. G. Adibekyan, V. Zapatero Osorio, M. R. González Hernández, J. I. Barros, S. C. C. Lillo Box, J. Stassun, K. G. Winn, J. N. Cristiani, S. Pepe, Francesco Rebolo, R. Santos, Nuno C. Allart, R. Barclay, T. Bouchy, F. Cabral, A. Ciardi, D. R. Di Marcantonio, P. D´Odorico, V. Ehrenreich, D. Fausnaugh, M. Figueira, P. Haldemann, J. Jenkins, J. M. Latham, D. W. Lavie, B. Lo Curto, G. Lovis, C. Martins, C. J. A. P. Mégevand, D. Mehner, A. Micela, G. Molaro, P. Nunes, Nelson J. Oshagh, M. Otegi, Jon F. Pallé, E. Poretti, E. Ricker, George Rodríguez, D. Seager, S. Suárez Mascareño, A. Twicken, J. D. Udry, S. |
| 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 author author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Sozzetti, A. [0000-0002-7504-365X] Nunes, N. [0000-0002-3837-6914] Haldemann, J. [0000-0003-1231-2389] Istituto Nazionale di Astrofisica (INAF) Agenzia Spaziale Italiana (ASI) iss National Science Foundation (SNSF) Fundacao para a Ciencia e a Tecnologia (FCT) European Commission (EC) European Research Council (ERC) Ministerio de Economía y Competitividad (MINECO) Agencia Estatal de Investigación (AEI) http://dx.doi.org/10.13039/501100011033 |
| dc.subject.none.fl_str_mv |
Planetary systems Planets and satellites: composition Stars: individual: HD 5278 (TOI-130) Techniques: radial velocities Techniques: photometric Methods: miscellaneous |
| topic |
Planetary systems Planets and satellites: composition Stars: individual: HD 5278 (TOI-130) Techniques: radial velocities Techniques: photometric Methods: miscellaneous |
| description |
Context. Transiting sub-Neptune-type planets, with radii approximately between 2 and 4 R⊕, are of particular interest as their study allows us to gain insight into the formation and evolution of a class of planets that are not found in our Solar System. Aims. We exploit the extreme radial velocity (RV) precision of the ultra-stable echelle spectrograph ESPRESSO on the VLT to unveil the physical properties of the transiting sub-Neptune TOI-130 b, uncovered by the TESS mission orbiting the nearby, bright, late F-type star HD 5278 (TOI-130) with a period of Pb = 14.3 days. Methods. We used 43 ESPRESSO high-resolution spectra and broad-band photometry information to derive accurate stellar atmospheric and physical parameters of HD 5278. We exploited the TESS light curve and spectroscopic diagnostics to gauge the impact of stellar activity on the ESPRESSO RVs. We performed separate as well as joint analyses of the TESS photometry and the ESPRESSO RVs using fully Bayesian frameworks to determine the system parameters. Results. Based on the ESPRESSO spectra, the updated stellar parameters of HD 5278 are Teff = 6203 ± 64 K, log g = 4.50 ± 0.11 dex, [Fe/H] = −0.12 ± 0.04 dex, M⋆ = 1.126−0.035+0.036 M⊙, and R⋆ = 1.194−0.016+0.017 R⊙. We determine HD 5278 b’s mass and radius to be Mb = 7.8−1.4+1.5 M⊕ and Rb = 2.45 ± 0.05R⊕. The derived mean density, ϱb = 2.9−0.5+0.6 g cm−3, is consistent with the bulk composition of a sub-Neptune with a substantial (~ 30%) water mass fraction and with a gas envelope comprising ~17% of the measured radius. Given the host brightness and irradiation levels, HD 5278 b is one of the best targetsorbiting G-F primaries for follow-up atmospheric characterization measurements with HST and JWST. We discover a second, non-transiting companion in the system, with a period of Pc = 40.87−0.17+0.18 days and a minimum mass of Mc sin ic = 18.4−1.9+1.8 M⊕. We study emerging trends in parameters space (e.g., mass, radius, stellar insolation, and mean density) of the growing population of transiting sub-Neptunes, and provide statistical evidence for a low occurrence of close-in, 10 − 15M⊕ companions around G-F primaries with Teff ≳ 5500 K. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021 2022 2022 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 |
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article |
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publishedVersion |
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https://www.aanda.org/articles/aa/abs/2021/04/aa40034-20/aa40034-20.html http://hdl.handle.net/20.500.12666/643 |
| url |
https://www.aanda.org/articles/aa/abs/2021/04/aa40034-20/aa40034-20.html http://hdl.handle.net/20.500.12666/643 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
Measuring Eta_Earth: Characterization of Terrestrial Planetary Systems with Kepler, HARPS-N, and Gaia info:eu-repo/grantAgreement/MINECO//RYC-2013-14875 Future of upper atmospheric characterisation of exoplanets with spectroscopy ESPECTROSCOPIA DE ALTA RESOLUCION ORIENTADA AL ESTUDIO DE EXOTIERRAS Y LA FORMACION DE LA VIA LACTEA. EXPLOTACION CIENTIFICA DE ESPRESSO Y HORS RYC-2013-14875 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2017-86389-P info:eu-repo/grantAgreement/EC/FP7/313014 info:eu-repo/grantAgreement/EC/H2020/724427 |
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Attribution-NonCommercial-NoDerivatives 4.0 International © ESO 2021 https://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
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Attribution-NonCommercial-NoDerivatives 4.0 International © ESO 2021 https://creativecommons.org/licenses/by-nc-nd/4.0/ |
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openAccess |
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application/pdf |
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EDP Sciences |
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EDP Sciences |
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A sub-Neptune and a non-transiting Neptune-mass companion unveiled by ESPRESSO around the bright late-F dwarf HD 5278 (TOI-130)Sozzetti, A.Damasso, M.Bonomo, A. S.Alibert, Y.Sousa, S. G.Adibekyan, V.Zapatero Osorio, M. R.González Hernández, J. I.Barros, S. C. C.Lillo Box, J.Stassun, K. G.Winn, J. N.Cristiani, S.Pepe, FrancescoRebolo, R.Santos, Nuno C.Allart, R.Barclay, T.Bouchy, F.Cabral, A.Ciardi, D. R.Di Marcantonio, P.D´Odorico, V.Ehrenreich, D.Fausnaugh, M.Figueira, P.Haldemann, J.Jenkins, J. M.Latham, D. W.Lavie, B.Lo Curto, G.Lovis, C.Martins, C. J. A. P.Mégevand, D.Mehner, A.Micela, G.Molaro, P.Nunes, Nelson J.Oshagh, M.Otegi, Jon F.Pallé, E. Poretti, E.Ricker, GeorgeRodríguez, D.Seager, S.Suárez Mascareño, A.Twicken, J. D.Udry, S.Planetary systemsPlanets and satellites: compositionStars: individual: HD 5278 (TOI-130)Techniques: radial velocitiesTechniques: photometricMethods: miscellaneousContext. Transiting sub-Neptune-type planets, with radii approximately between 2 and 4 R⊕, are of particular interest as their study allows us to gain insight into the formation and evolution of a class of planets that are not found in our Solar System. Aims. We exploit the extreme radial velocity (RV) precision of the ultra-stable echelle spectrograph ESPRESSO on the VLT to unveil the physical properties of the transiting sub-Neptune TOI-130 b, uncovered by the TESS mission orbiting the nearby, bright, late F-type star HD 5278 (TOI-130) with a period of Pb = 14.3 days. Methods. We used 43 ESPRESSO high-resolution spectra and broad-band photometry information to derive accurate stellar atmospheric and physical parameters of HD 5278. We exploited the TESS light curve and spectroscopic diagnostics to gauge the impact of stellar activity on the ESPRESSO RVs. We performed separate as well as joint analyses of the TESS photometry and the ESPRESSO RVs using fully Bayesian frameworks to determine the system parameters. Results. Based on the ESPRESSO spectra, the updated stellar parameters of HD 5278 are Teff = 6203 ± 64 K, log g = 4.50 ± 0.11 dex, [Fe/H] = −0.12 ± 0.04 dex, M⋆ = 1.126−0.035+0.036 M⊙, and R⋆ = 1.194−0.016+0.017 R⊙. We determine HD 5278 b’s mass and radius to be Mb = 7.8−1.4+1.5 M⊕ and Rb = 2.45 ± 0.05R⊕. The derived mean density, ϱb = 2.9−0.5+0.6 g cm−3, is consistent with the bulk composition of a sub-Neptune with a substantial (~ 30%) water mass fraction and with a gas envelope comprising ~17% of the measured radius. Given the host brightness and irradiation levels, HD 5278 b is one of the best targetsorbiting G-F primaries for follow-up atmospheric characterization measurements with HST and JWST. We discover a second, non-transiting companion in the system, with a period of Pc = 40.87−0.17+0.18 days and a minimum mass of Mc sin ic = 18.4−1.9+1.8 M⊕. We study emerging trends in parameters space (e.g., mass, radius, stellar insolation, and mean density) of the growing population of transiting sub-Neptunes, and provide statistical evidence for a low occurrence of close-in, 10 − 15M⊕ companions around G-F primaries with Teff ≳ 5500 K.The authors acknowledge the ESPRESSO project team for its effort and dedication in building the ESPRESSO instrument. This work has received financial support from the ASI-INAF agreement no. 2018-16-HH.0. M.D. acknowledges financial support from the FP7-SPACE Project ETAEARTH (GA No. 313014). A.S. We gratefully acknowledges support from the Italian Space Agency (ASI) under contract 2018-24-HH.0. The INAF authors acknowledge financial support of the Italian Ministry of Education, University, and Research with PRIN 201278X4FL and the Progetti Premiali funding scheme.to acknowledge the Swiss National Science Foundation (SNSF) for supporting research with ESPRESSO through the SNSF grants no. 140649, 152721, and 166227. The ESPRESSO Instrument Project was partially funded through SNSF's FLARE Programme for large infrastructures. This work has been carried out in part within the framework of the NCCR PlanetS supported by the Swiss National Science Foundation. This work was supported by FCT -Funda cao para a Ciencia e Tecnologia through national funds and by FEDER through COMPETE2020 -Programa Operacional Competitividade e Internacionaliza cao by these grants: UID/FIS/04434/2019; UIDB/04434/2020; UIDP/04434/2020; PTDC/FIS-AST/32113/2017 POCI-01-0145-FEDER-032113; PTDC/FIS-AST/28953/2017 & POCI-01-0145-FEDER-028953; PTDC/FIS-AST/28987/2017 & POCI-01-0145-FEDER-028987; PTDC/FIS-OUT/29048/2017 & IF/00852/2015. S.C.C.B. acknowledges support from FCT through contract nr. IF/01312/2014/CP1215/CT0004. S.G.S acknowledges the support from FCT through Investigator FCT contract nr. CEECIND/00826/2018 and POPH/FSE (EC). This project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (project Four Aces, grant agreement no. 724427). V.A. acknowledges the support from FCT through Investigator FCT contract nr. IF/00650/2015/CP1273/CT0001. Y.A. and J.H. acknowledge the Swiss National Science Foundation (SNSF) for supporting research through the SNSF grant 200 020_192038. J.I.G.H. acknowledges financial support from Spanish Ministry of Science and Innovation (MICINN) under the 2013 Ramon y Cajal programme RYC-2013-14 875. J.I.G.H., A.S.M., R.R., and C.A.P. acknowledge financial support from the Spanish MICINN AYA2017-86 389-P. A.S.M. acknowledges financial support from the Spanish Ministry of Science and Innovation (MICINN) under the 2019 Juan de la Cierva Programme. R.A. is a Trottier Postdoctoral Fellow and acknowledges support from the Trottier Family Foundation. This work was supported in part through a grant from FRQNT. This work has made use of data from the European Space Agency (ESA) mission Gaia (https://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. This publication makes use of The Data & Analysis Center for Exoplanets (DACE), which is a facility based at the University of Geneva (CH) dedicated to extrasolar planets data visualization, exchange and analysis. DACE is a platform of the Swiss National Centre of Competence in Research (NCCR) PlanetS, federating the expertise in Exoplanet research. The DACE platform is available at https://dace.unige.ch.This paper includes data collected by the TESS mission, which are publicly available from the Mikulski Archive for Space Telescopes (MAST).; We acknowledge the use of public TESS Alert data from pipelines at the TESS Science Office and at the TESS Science Processing Operations Center. Resources supporting this work were provided by the NASA High-End Computing (HEC) Program through the NASA Advanced Supercomputing (NAS) Division at Ames Research Center for the production of the SPOC data products.PeerreviewEDP SciencesSozzetti, A. [0000-0002-7504-365X]Nunes, N. [0000-0002-3837-6914]Haldemann, J. [0000-0003-1231-2389]Istituto Nazionale di Astrofisica (INAF)Agenzia Spaziale Italiana (ASI)iss National Science Foundation (SNSF)Fundacao para a Ciencia e a Tecnologia (FCT)European Commission (EC)European Research Council (ERC)Ministerio de Economía y Competitividad (MINECO)Agencia Estatal de Investigación (AEI) http://dx.doi.org/10.13039/501100011033202220222021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501application/pdfhttps://www.aanda.org/articles/aa/abs/2021/04/aa40034-20/aa40034-20.htmlhttp://hdl.handle.net/20.500.12666/643reponame:DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacialinstname:Instituto Nacional de Técnica Aeroespacial (INTA)InglésMeasuring Eta_Earth: Characterization of Terrestrial Planetary Systems with Kepler, HARPS-N, and Gaiainfo:eu-repo/grantAgreement/MINECO//RYC-2013-14875Future of upper atmospheric characterisation of exoplanets with spectroscopyESPECTROSCOPIA DE ALTA RESOLUCION ORIENTADA AL ESTUDIO DE EXOTIERRAS Y LA FORMACION DE LA VIA LACTEA. EXPLOTACION CIENTIFICA DE ESPRESSO Y HORSRYC-2013-14875info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2017-86389-Pinfo:eu-repo/grantAgreement/EC/FP7/313014info:eu-repo/grantAgreement/EC/H2020/724427Attribution-NonCommercial-NoDerivatives 4.0 International© ESO 2021https://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:digital.inta.es:20.500.12666/6432026-06-23T12:46:37Z |
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