TOI-1442 b and TOI-2445 b: Two potentially rocky ultra-short period planets around M dwarfs

Morello, G. et al.--Full list of authors: Morello, G.; Parviainen, H.; Murgas, F.; Palle, E.; Oshagh, M.; Fukui, A.; Hirano, T.; Ishikawa, H. T.; Mori, M.; Narita, N.; Collins, K. A.; Barkaoui, K.; Lewin, P.; Cadieux, C.; de Leon, J. P.; Soubkiou, A.; Abreu Garcia, N.; Crouzet, N.; Esparza-Borges, E...

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Autores: Morello, Giuseppe, Luque, R., Pozuelos, Francisco José, Timmermans, M.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/331470
Acesso em linha:http://hdl.handle.net/10261/331470
Access Level:acceso abierto
Palavra-chave:Planetary systems
Planets and satellites: individual: TOI-1442 b
Planets and satellites: individual: TOI-2445 b
Techniques: photometric
Techniques: spectroscopic
Methods: observational
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dc.title.none.fl_str_mv TOI-1442 b and TOI-2445 b: Two potentially rocky ultra-short period planets around M dwarfs
title TOI-1442 b and TOI-2445 b: Two potentially rocky ultra-short period planets around M dwarfs
spellingShingle TOI-1442 b and TOI-2445 b: Two potentially rocky ultra-short period planets around M dwarfs
Morello, Giuseppe
Planetary systems
Planets and satellites: individual: TOI-1442 b
Planets and satellites: individual: TOI-2445 b
Techniques: photometric
Techniques: spectroscopic
Methods: observational
title_short TOI-1442 b and TOI-2445 b: Two potentially rocky ultra-short period planets around M dwarfs
title_full TOI-1442 b and TOI-2445 b: Two potentially rocky ultra-short period planets around M dwarfs
title_fullStr TOI-1442 b and TOI-2445 b: Two potentially rocky ultra-short period planets around M dwarfs
title_full_unstemmed TOI-1442 b and TOI-2445 b: Two potentially rocky ultra-short period planets around M dwarfs
title_sort TOI-1442 b and TOI-2445 b: Two potentially rocky ultra-short period planets around M dwarfs
dc.creator.none.fl_str_mv Morello, Giuseppe
Luque, R.
Pozuelos, Francisco José
Timmermans, M.
author Morello, Giuseppe
author_facet Morello, Giuseppe
Luque, R.
Pozuelos, Francisco José
Timmermans, M.
author_role author
author2 Luque, R.
Pozuelos, Francisco José
Timmermans, M.
author2_role author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
European Commission
Japan Society for the Promotion of Science
Swedish Research Council
Istituto Nazionale di Astrofisica
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Planetary systems
Planets and satellites: individual: TOI-1442 b
Planets and satellites: individual: TOI-2445 b
Techniques: photometric
Techniques: spectroscopic
Methods: observational
topic Planetary systems
Planets and satellites: individual: TOI-1442 b
Planets and satellites: individual: TOI-2445 b
Techniques: photometric
Techniques: spectroscopic
Methods: observational
description Morello, G. et al.--Full list of authors: Morello, G.; Parviainen, H.; Murgas, F.; Palle, E.; Oshagh, M.; Fukui, A.; Hirano, T.; Ishikawa, H. T.; Mori, M.; Narita, N.; Collins, K. A.; Barkaoui, K.; Lewin, P.; Cadieux, C.; de Leon, J. P.; Soubkiou, A.; Abreu Garcia, N.; Crouzet, N.; Esparza-Borges, E.; Fernandez Rodriguez, G. E.; Galan, D.; Hori, Y.; Ikoma, M.; Isogai, K.; Kagetani, T.; Kawauchi, K.; Kimura, T.; Kodama, T.; Korth, J.; Kotani, T.; Krishnamurthy, V.; Kurita, S.; Laza-Ramos, A.; Livingston, J. H.; Luque, R.; Madrigal-Aguado, A.; Nishiumi, T.; Orell-Miquel, J.; Puig-Subira, M.; Sanchez-Benavente, M.; Stangret, M.; Tamura, M.; Terada, Y.; Watanabe, N.; Zou, Y.; Benkhaldoun, Z.; Collins, K. I.; Doyon, R.; Garcia, L.; Ghachoui, M.; Gillon, M.; Jehin, E.; Pozuelos, F. J.; Schwarz, R. P.; Timmermans, M.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/331470
url http://hdl.handle.net/10261/331470
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/H2020/895525
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-098153-B-C31
http://dx.doi.org/10.1051/0004-6361/202243592
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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spelling TOI-1442 b and TOI-2445 b: Two potentially rocky ultra-short period planets around M dwarfsMorello, GiuseppeLuque, R.Pozuelos, Francisco JoséTimmermans, M.Planetary systemsPlanets and satellites: individual: TOI-1442 bPlanets and satellites: individual: TOI-2445 bTechniques: photometricTechniques: spectroscopicMethods: observationalMorello, G. et al.--Full list of authors: Morello, G.; Parviainen, H.; Murgas, F.; Palle, E.; Oshagh, M.; Fukui, A.; Hirano, T.; Ishikawa, H. T.; Mori, M.; Narita, N.; Collins, K. A.; Barkaoui, K.; Lewin, P.; Cadieux, C.; de Leon, J. P.; Soubkiou, A.; Abreu Garcia, N.; Crouzet, N.; Esparza-Borges, E.; Fernandez Rodriguez, G. E.; Galan, D.; Hori, Y.; Ikoma, M.; Isogai, K.; Kagetani, T.; Kawauchi, K.; Kimura, T.; Kodama, T.; Korth, J.; Kotani, T.; Krishnamurthy, V.; Kurita, S.; Laza-Ramos, A.; Livingston, J. H.; Luque, R.; Madrigal-Aguado, A.; Nishiumi, T.; Orell-Miquel, J.; Puig-Subira, M.; Sanchez-Benavente, M.; Stangret, M.; Tamura, M.; Terada, Y.; Watanabe, N.; Zou, Y.; Benkhaldoun, Z.; Collins, K. I.; Doyon, R.; Garcia, L.; Ghachoui, M.; Gillon, M.; Jehin, E.; Pozuelos, F. J.; Schwarz, R. P.; Timmermans, M.Context. Exoplanets with orbital periods of less than one day are known as ultra-short period (USP) planets. They are relatively rare products of planetary formation and evolution processes, but especially favourable for characterisation with current planet detection methods. At the time of writing, 125 USP planets have already been confirmed. Aims. Our aim is to validate the planetary nature of two new transiting planet candidates around M dwarfs announced by the NASA Transiting Exoplanet Survey Satellite (TESS), registered as TESS Objects of Interest (TOIs) TOI-1442.01 and TOI-2445.01. Methods. We used TESS data, ground-based photometric light curves, and Subaru/IRD spectrograph radial velocity (RV) measurements to validate both planetary candidates and to establish their physical properties. Results. TOI-1442 bis a validated exoplanet with an orbital period of P = 0.4090682 ± 0.0000004 day, a radius of Rp = 1.15 ± 0.06 R⊕, and equilibrium temperature of Tp,eq = 1357−42+49 K. TOI-2445 b is also validated with an orbital period of P = 0.3711286 ± 0.0000004 day, a radius of Rp = 1.33 ± 0.09 R⊕, and equilibrium temperature of Tp,eq = 1330−56+61 K. Their physical properties align with current empirical trends and formation theories of USP planets. Based on the RV measurements, we set 3σ upper mass limits of 8 M⊕ and 20 M⊕, thus confirming the non-stellar, sub-Jovian nature of both transiting objects. More RV measurements will be needed to constrain the planetary masses and mean densities, and the predicted presence of outer planetary companions. These targets extend the small sample of USP planets orbiting around M dwarfs up to 21 members. They are also among the 20 most suitable terrestrial planets for atmospheric characterisation via secondary eclipse with the James Webb Space Telescope, according to a widespread emission spectroscopy metric. © The Authors 2023.G.M. has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 895525, and the Ariel Postdoctoral Fellowship Program. This work is partly financed by the Spanish Ministry of Economics and Competitiveness through grants PGC2018-098153-B-C31. This work was partly supported by MEXT/JSPS KAKENHI Grant Numbers JP17H04574, JP18H05439, JP20J21872, JP18H05439, JP20K14521, JP20K14518, JP21K20376, JP21K13975, JP18H05439, JP18H05442, JP15H02063, JP22000005, JP18H05439, JP19K14783, JP21H00035, JP21K20388, JP21K13955, JST CREST Grant Number JPMJCR1761, Astrobiology Center SATELLITE Research project AB022006, and Astrobiology Center PROJECT Research AB031014. R.L. acknowledges funding from University of La Laguna through the Margarita Salas Fellowship from the Spanish Ministry of Universities ref. UNI/551/2021-May 26, and under the EU Next Generation funds. J.K. gratefully acknowledges the support of Swedish National Space Agency (SNSA; DNR 2020-00104) and of the Swedish Research Council (VR: Etableringsbidrag 2017-04945) M.S. acknowledges the support of the Italian National Institute of Astrophysics (INAF) through the project “The HOT-ATMOS Project: characterizing the atmospheres of hot giant planets as a key to understand the exoplanet diversity” (1.05.01.85.04). This paper is based on data collected at the Subaru Telescope, which is located atop Maunakea and operated by the National Astronomical Observatory of Japan (NAOJ). We wish to recognize and acknowledge the very significant cultural role and reverence that the summit of Maunakea has always had within the indigenous Hawaiian community. A part of our data analysis was carried out on common use data analysis computer system at the Astronomy Data Center, ADC, of the National Astronomical Observatory of Japan. The research leading to these results has received funding from the ARC grant for Concerted Research Actions, financed by the Wallonia-Brussels Federation, and from the French Community of Belgium in the context of the FRIA Doctoral Grant awarded to MT. TRAPPIST is funded by the Belgian Fund for Scientific Research (Fond National de la Recherche Scientifique, FNRS) under the grant PDR T.0120.21. M.G. and E.J. are F.R.S.-FNRS Senior Research Associate. This work makes use of observations from the LCOGT network. Part of the LCOGT telescope time was granted by NOIRLab through the Mid-Scale Innovations Program (MSIP). MSIP is funded by NSF. This paper is based on observations made with the MuSCAT3 instrument, developed by the Astrobiology Center and under financial supports by JSPS KAKENHI (JP18H05439) and JST PRESTO (JPMJPR1775), at Faulkes Telescope North on Maui, HI, operated by the Las Cumbres Observatory.Peer reviewedEDP SciencesMinisterio de Economía y Competitividad (España)European CommissionJapan Society for the Promotion of ScienceSwedish Research CouncilIstituto Nazionale di AstrofisicaConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202320232023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/331470reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/895525info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-098153-B-C31http://dx.doi.org/10.1051/0004-6361/202243592Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3314702026-05-22T06:33:51Z
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