Near-IR and optical radial velocities of the active M dwarf star Gl 388 (AD Leo) with SPIRou at CFHT and SOPHIE at OHP: A 2.23 day rotation period and no evidence for a corotating...

Autores: Carmona, A.; Delfosse, X.; Bellotti, S.; Cortés Zuleta, P.; Ould Elhkim, M.; Heidari, N.; Mignon, L.; Donati, J. F.; Cook, N.; Artigau, E.; Fouqué, P.; Martioli, E.; Cadieux, C.; Forveille, T.; Boisse, I.; Hébrard, G.; Diaz, Rodrigo Fernando; Lafrenière, D.; Kiefer, F.; Petit, P.; Doyon, R.; Acuña, L.; Arnold, L.; Santerne, A.; Mousis, O.; Ségrasan, D.; Stalport, M.; Udry, S.
Año de publicación: 2023
Idioma: inglés
Tipo de recurso: artículo
Estado: versión publicada
Descripción: Context. The search for extrasolar planets around the nearest M dwarfs is a crucial step toward identifying the nearest Earth-like planets. One of the main challenges in this search is that M dwarfs can be magnetically active and stellar activity can produce radial velocity (RV) signals that could mimic those of a planet.Aims: We aim to investigate whether the 2.2-day period observed in optical RVs of the nearby active M dwarf star Gl 388 (AD Leo) is due to stellar activity or to a planet that corotates with the star as suggested in the past.Methods: We obtained quasi-simultaneous RVs of Gl 388 from 2019 to 2021 with SOPHIE, the optical échelle spectrograph (R ~75k) at the Observatoire de Haute-Provence in France, and RV and Stokes V measurements with SPIRou, the near-infrared spectropolarimeter at the Canada France Hawaii Telescope (R ~70k).Results: The SOPHIE RV time series (precision of 3-5 m s-1 per visit) displays a periodic signal with a 2.23 ± 0.01 day period and 23.6 ± 0.5 m s-1 amplitude, which is consistent with previous HARPS observations obtained in 2005-2006. The SPIRou RV time series (precision of 2 ms-1 per visit) is flat at 5 ms-1 rms and displays no periodic signals. RV signals of amplitude higher than 5.3 m s-1 at a period of 2.23 days can be excluded with a confidence level higher than 99%. Using the modulation of the longitudinal magnetic field (Bℓ) measured with SPIRou as a proxy of stellar rotation, we measure a rotation period of 2.2305 ± 0.0016 days.Conclusions: SPIRou RV measurements provide solid evidence that the periodic variability of the optical RVs of Gl 388 is due to stellar activity rather than to a corotating planet. The magnetic activity nature of the optical RV signal is further confirmed by the modulation of Bℓ with the same period. The SPIRou campaign on Gl 388 demonstrates the power of near-infrared RV to confirm or infirm planet candidates discovered in the optical around active stars. Our SPIRou observations additionally reiterate how effective spectropolarimetry is at determining the stellar rotation period from the variations of Bℓ.
Fil: Carmona, A.. Centre National de la Recherche Scientifique; Francia. Universite Grenoble Alpes; Francia
Fil: Delfosse, X.. Centre National de la Recherche Scientifique; Francia. Universite Grenoble Alpes; Francia
Fil: Bellotti, S.. Université Paul Sabatier; Francia. Université de Toulouse; Francia. Centro Europeo de Investigación y Tecnología Espacial; Países Bajos
Fil: Cortés Zuleta, P.. Aix Marseille Université; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Ould Elhkim, M.. Université Paul Sabatier; Francia. Université de Toulouse; Francia
Fil: Heidari, N.. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Ciencias Fisicas. - Universidad Nacional de San Martin. Instituto de Ciencias Fisicas.; Argentina. Aix Marseille Université; Francia
Fil: Mignon, L.. l’Université de Genève; Suiza
Fil: Donati, J. F.. Université de Toulouse; Francia
Fil: Cook, N.. University of Montreal; Canadá
Fil: Artigau, E.. University of Montreal; Canadá. Université de Montpellier; Suiza
Fil: Fouqué, P.. Université de Toulouse; Francia
Fil: Martioli, E.. Laboratório Nacional de Astrofísica; Brasil. Sorbonne University; Francia
Fil: Cadieux, C.. University of Montreal; Canadá
Fil: Forveille, T.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia. Sorbonne University; Francia
Fil: Boisse, I.. Aix Marseille Université; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Hébrard, G.. Sorbonne University; Francia
Fil: Diaz, Rodrigo Fernando. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias Físicas. - Universidad Nacional de San Martín. Instituto de Ciencias Físicas; Argentina
Fil: Lafrenière, D.. University of Montreal; Canadá
Fil: Kiefer, F.. Sorbonne University; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Petit, P.. Université de Toulouse; Francia
Fil: Doyon, R.. University of Montreal; Canadá
Fil: Acuña, L.. Centre National de la Recherche Scientifique; Francia
Fil: Arnold, L.. Centre National de la Recherche Scientifique; Francia
Fil: Santerne, A.. Centre National de la Recherche Scientifique; Francia. Canada France Hawaii Telescope; Estados Unidos
Fil: Mousis, O.. Université de Montpellier; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Ségrasan, D.. Université de Montpellier; Francia
Fil: Stalport, M.. l'Université de Genève; Suiza
Fil: Udry, S.. l'Université de Genève; Suiza
Materia: planetary systems
stars: low-mass
methods: observational
techniques: spectroscopic
techniques: radial velocities
Nivel de accesibilidad: acceso abierto
Condiciones de uso: https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
Institución: Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador: oai:ri.conicet.gov.ar:11336/254133

Acceder

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network_name_str	CONICET Digital (CONICET)
spelling	Near-IR and optical radial velocities of the active M dwarf star Gl 388 (AD Leo) with SPIRou at CFHT and SOPHIE at OHP: A 2.23 day rotation period and no evidence for a corotating planetCarmona, A.Delfosse, X.Bellotti, S.Cortés Zuleta, P.Ould Elhkim, M.Heidari, N.Mignon, L.Donati, J. F.Cook, N.Artigau, E.Fouqué, P.Martioli, E.Cadieux, C.Forveille, T.Boisse, I.Hébrard, G.Diaz, Rodrigo FernandoLafrenière, D.Kiefer, F.Petit, P.Doyon, R.Acuña, L.Arnold, L.Santerne, A.Mousis, O.Ségrasan, D.Stalport, M.Udry, S.planetary systemsstars: low-massmethods: observationaltechniques: spectroscopictechniques: radial velocitieshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Context. The search for extrasolar planets around the nearest M dwarfs is a crucial step toward identifying the nearest Earth-like planets. One of the main challenges in this search is that M dwarfs can be magnetically active and stellar activity can produce radial velocity (RV) signals that could mimic those of a planet.Aims: We aim to investigate whether the 2.2-day period observed in optical RVs of the nearby active M dwarf star Gl 388 (AD Leo) is due to stellar activity or to a planet that corotates with the star as suggested in the past.Methods: We obtained quasi-simultaneous RVs of Gl 388 from 2019 to 2021 with SOPHIE, the optical échelle spectrograph (R ~75k) at the Observatoire de Haute-Provence in France, and RV and Stokes V measurements with SPIRou, the near-infrared spectropolarimeter at the Canada France Hawaii Telescope (R ~70k).Results: The SOPHIE RV time series (precision of 3-5 m s-1 per visit) displays a periodic signal with a 2.23 ± 0.01 day period and 23.6 ± 0.5 m s-1 amplitude, which is consistent with previous HARPS observations obtained in 2005-2006. The SPIRou RV time series (precision of 2 ms-1 per visit) is flat at 5 ms-1 rms and displays no periodic signals. RV signals of amplitude higher than 5.3 m s-1 at a period of 2.23 days can be excluded with a confidence level higher than 99%. Using the modulation of the longitudinal magnetic field (Bℓ) measured with SPIRou as a proxy of stellar rotation, we measure a rotation period of 2.2305 ± 0.0016 days.Conclusions: SPIRou RV measurements provide solid evidence that the periodic variability of the optical RVs of Gl 388 is due to stellar activity rather than to a corotating planet. The magnetic activity nature of the optical RV signal is further confirmed by the modulation of Bℓ with the same period. The SPIRou campaign on Gl 388 demonstrates the power of near-infrared RV to confirm or infirm planet candidates discovered in the optical around active stars. Our SPIRou observations additionally reiterate how effective spectropolarimetry is at determining the stellar rotation period from the variations of Bℓ.Fil: Carmona, A.. Centre National de la Recherche Scientifique; Francia. Universite Grenoble Alpes; FranciaFil: Delfosse, X.. Centre National de la Recherche Scientifique; Francia. Universite Grenoble Alpes; FranciaFil: Bellotti, S.. Université Paul Sabatier; Francia. Université de Toulouse; Francia. Centro Europeo de Investigación y Tecnología Espacial; Países BajosFil: Cortés Zuleta, P.. Aix Marseille Université; Francia. Centre National de la Recherche Scientifique; FranciaFil: Ould Elhkim, M.. Université Paul Sabatier; Francia. Université de Toulouse; FranciaFil: Heidari, N.. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Ciencias Fisicas. - Universidad Nacional de San Martin. Instituto de Ciencias Fisicas.; Argentina. Aix Marseille Université; FranciaFil: Mignon, L.. l’Université de Genève; SuizaFil: Donati, J. F.. Université de Toulouse; FranciaFil: Cook, N.. University of Montreal; CanadáFil: Artigau, E.. University of Montreal; Canadá. Université de Montpellier; SuizaFil: Fouqué, P.. Université de Toulouse; FranciaFil: Martioli, E.. Laboratório Nacional de Astrofísica; Brasil. Sorbonne University; FranciaFil: Cadieux, C.. University of Montreal; CanadáFil: Forveille, T.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia. Sorbonne University; FranciaFil: Boisse, I.. Aix Marseille Université; Francia. Centre National de la Recherche Scientifique; FranciaFil: Hébrard, G.. Sorbonne University; FranciaFil: Diaz, Rodrigo Fernando. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias Físicas. - Universidad Nacional de San Martín. Instituto de Ciencias Físicas; ArgentinaFil: Lafrenière, D.. University of Montreal; CanadáFil: Kiefer, F.. Sorbonne University; Francia. Centre National de la Recherche Scientifique; FranciaFil: Petit, P.. Université de Toulouse; FranciaFil: Doyon, R.. University of Montreal; CanadáFil: Acuña, L.. Centre National de la Recherche Scientifique; FranciaFil: Arnold, L.. Centre National de la Recherche Scientifique; FranciaFil: Santerne, A.. Centre National de la Recherche Scientifique; Francia. Canada France Hawaii Telescope; Estados UnidosFil: Mousis, O.. Université de Montpellier; Francia. Centre National de la Recherche Scientifique; FranciaFil: Ségrasan, D.. Université de Montpellier; FranciaFil: Stalport, M.. l'Université de Genève; SuizaFil: Udry, S.. l'Université de Genève; SuizaEDP Sciences2023-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/254133Carmona, A.; Delfosse, X.; Bellotti, S.; Cortés Zuleta, P.; Ould Elhkim, M.; et al.; Near-IR and optical radial velocities of the active M dwarf star Gl 388 (AD Leo) with SPIRou at CFHT and SOPHIE at OHP: A 2.23 day rotation period and no evidence for a corotating planet; EDP Sciences; Astronomy and Astrophysics; 674; 6-2023; 1-250004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/10.1051/0004-6361/202245660info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202245660info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/2303.16712info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:34:14Zoai:ri.conicet.gov.ar:11336/254133instacron: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 09:34:14.36CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv	Near-IR and optical radial velocities of the active M dwarf star Gl 388 (AD Leo) with SPIRou at CFHT and SOPHIE at OHP: A 2.23 day rotation period and no evidence for a corotating planet
title	Near-IR and optical radial velocities of the active M dwarf star Gl 388 (AD Leo) with SPIRou at CFHT and SOPHIE at OHP: A 2.23 day rotation period and no evidence for a corotating planet
spellingShingle	Near-IR and optical radial velocities of the active M dwarf star Gl 388 (AD Leo) with SPIRou at CFHT and SOPHIE at OHP: A 2.23 day rotation period and no evidence for a corotating planet Carmona, A. planetary systems stars: low-mass methods: observational techniques: spectroscopic techniques: radial velocities
title_short	Near-IR and optical radial velocities of the active M dwarf star Gl 388 (AD Leo) with SPIRou at CFHT and SOPHIE at OHP: A 2.23 day rotation period and no evidence for a corotating planet
title_full	Near-IR and optical radial velocities of the active M dwarf star Gl 388 (AD Leo) with SPIRou at CFHT and SOPHIE at OHP: A 2.23 day rotation period and no evidence for a corotating planet
title_fullStr	Near-IR and optical radial velocities of the active M dwarf star Gl 388 (AD Leo) with SPIRou at CFHT and SOPHIE at OHP: A 2.23 day rotation period and no evidence for a corotating planet
title_full_unstemmed	Near-IR and optical radial velocities of the active M dwarf star Gl 388 (AD Leo) with SPIRou at CFHT and SOPHIE at OHP: A 2.23 day rotation period and no evidence for a corotating planet
title_sort	Near-IR and optical radial velocities of the active M dwarf star Gl 388 (AD Leo) with SPIRou at CFHT and SOPHIE at OHP: A 2.23 day rotation period and no evidence for a corotating planet
dc.creator.none.fl_str_mv	Carmona, A. Delfosse, X. Bellotti, S. Cortés Zuleta, P. Ould Elhkim, M. Heidari, N. Mignon, L. Donati, J. F. Cook, N. Artigau, E. Fouqué, P. Martioli, E. Cadieux, C. Forveille, T. Boisse, I. Hébrard, G. Diaz, Rodrigo Fernando Lafrenière, D. Kiefer, F. Petit, P. Doyon, R. Acuña, L. Arnold, L. Santerne, A. Mousis, O. Ségrasan, D. Stalport, M. Udry, S.
author	Carmona, A.
author_facet	Carmona, A. Delfosse, X. Bellotti, S. Cortés Zuleta, P. Ould Elhkim, M. Heidari, N. Mignon, L. Donati, J. F. Cook, N. Artigau, E. Fouqué, P. Martioli, E. Cadieux, C. Forveille, T. Boisse, I. Hébrard, G. Diaz, Rodrigo Fernando Lafrenière, D. Kiefer, F. Petit, P. Doyon, R. Acuña, L. Arnold, L. Santerne, A. Mousis, O. Ségrasan, D. Stalport, M. Udry, S.
author_role	author
author2	Delfosse, X. Bellotti, S. Cortés Zuleta, P. Ould Elhkim, M. Heidari, N. Mignon, L. Donati, J. F. Cook, N. Artigau, E. Fouqué, P. Martioli, E. Cadieux, C. Forveille, T. Boisse, I. Hébrard, G. Diaz, Rodrigo Fernando Lafrenière, D. Kiefer, F. Petit, P. Doyon, R. Acuña, L. Arnold, L. Santerne, A. Mousis, O. Ségrasan, D. Stalport, M. 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
dc.subject.none.fl_str_mv	planetary systems stars: low-mass methods: observational techniques: spectroscopic techniques: radial velocities
topic	planetary systems stars: low-mass methods: observational techniques: spectroscopic 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	Context. The search for extrasolar planets around the nearest M dwarfs is a crucial step toward identifying the nearest Earth-like planets. One of the main challenges in this search is that M dwarfs can be magnetically active and stellar activity can produce radial velocity (RV) signals that could mimic those of a planet.Aims: We aim to investigate whether the 2.2-day period observed in optical RVs of the nearby active M dwarf star Gl 388 (AD Leo) is due to stellar activity or to a planet that corotates with the star as suggested in the past.Methods: We obtained quasi-simultaneous RVs of Gl 388 from 2019 to 2021 with SOPHIE, the optical échelle spectrograph (R ~75k) at the Observatoire de Haute-Provence in France, and RV and Stokes V measurements with SPIRou, the near-infrared spectropolarimeter at the Canada France Hawaii Telescope (R ~70k).Results: The SOPHIE RV time series (precision of 3-5 m s-1 per visit) displays a periodic signal with a 2.23 ± 0.01 day period and 23.6 ± 0.5 m s-1 amplitude, which is consistent with previous HARPS observations obtained in 2005-2006. The SPIRou RV time series (precision of 2 ms-1 per visit) is flat at 5 ms-1 rms and displays no periodic signals. RV signals of amplitude higher than 5.3 m s-1 at a period of 2.23 days can be excluded with a confidence level higher than 99%. Using the modulation of the longitudinal magnetic field (Bℓ) measured with SPIRou as a proxy of stellar rotation, we measure a rotation period of 2.2305 ± 0.0016 days.Conclusions: SPIRou RV measurements provide solid evidence that the periodic variability of the optical RVs of Gl 388 is due to stellar activity rather than to a corotating planet. The magnetic activity nature of the optical RV signal is further confirmed by the modulation of Bℓ with the same period. The SPIRou campaign on Gl 388 demonstrates the power of near-infrared RV to confirm or infirm planet candidates discovered in the optical around active stars. Our SPIRou observations additionally reiterate how effective spectropolarimetry is at determining the stellar rotation period from the variations of Bℓ. Fil: Carmona, A.. Centre National de la Recherche Scientifique; Francia. Universite Grenoble Alpes; Francia Fil: Delfosse, X.. Centre National de la Recherche Scientifique; Francia. Universite Grenoble Alpes; Francia Fil: Bellotti, S.. Université Paul Sabatier; Francia. Université de Toulouse; Francia. Centro Europeo de Investigación y Tecnología Espacial; Países Bajos Fil: Cortés Zuleta, P.. Aix Marseille Université; Francia. Centre National de la Recherche Scientifique; Francia Fil: Ould Elhkim, M.. Université Paul Sabatier; Francia. Université de Toulouse; Francia Fil: Heidari, N.. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Ciencias Fisicas. - Universidad Nacional de San Martin. Instituto de Ciencias Fisicas.; Argentina. Aix Marseille Université; Francia Fil: Mignon, L.. l’Université de Genève; Suiza Fil: Donati, J. F.. Université de Toulouse; Francia Fil: Cook, N.. University of Montreal; Canadá Fil: Artigau, E.. University of Montreal; Canadá. Université de Montpellier; Suiza Fil: Fouqué, P.. Université de Toulouse; Francia Fil: Martioli, E.. Laboratório Nacional de Astrofísica; Brasil. Sorbonne University; Francia Fil: Cadieux, C.. University of Montreal; Canadá Fil: Forveille, T.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia. Sorbonne University; Francia Fil: Boisse, I.. Aix Marseille Université; Francia. Centre National de la Recherche Scientifique; Francia Fil: Hébrard, G.. Sorbonne University; Francia Fil: Diaz, Rodrigo Fernando. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias Físicas. - Universidad Nacional de San Martín. Instituto de Ciencias Físicas; Argentina Fil: Lafrenière, D.. University of Montreal; Canadá Fil: Kiefer, F.. Sorbonne University; Francia. Centre National de la Recherche Scientifique; Francia Fil: Petit, P.. Université de Toulouse; Francia Fil: Doyon, R.. University of Montreal; Canadá Fil: Acuña, L.. Centre National de la Recherche Scientifique; Francia Fil: Arnold, L.. Centre National de la Recherche Scientifique; Francia Fil: Santerne, A.. Centre National de la Recherche Scientifique; Francia. Canada France Hawaii Telescope; Estados Unidos Fil: Mousis, O.. Université de Montpellier; Francia. Centre National de la Recherche Scientifique; Francia Fil: Ségrasan, D.. Université de Montpellier; Francia Fil: Stalport, M.. l'Université de Genève; Suiza Fil: Udry, S.. l'Université de Genève; Suiza
description	Context. The search for extrasolar planets around the nearest M dwarfs is a crucial step toward identifying the nearest Earth-like planets. One of the main challenges in this search is that M dwarfs can be magnetically active and stellar activity can produce radial velocity (RV) signals that could mimic those of a planet.Aims: We aim to investigate whether the 2.2-day period observed in optical RVs of the nearby active M dwarf star Gl 388 (AD Leo) is due to stellar activity or to a planet that corotates with the star as suggested in the past.Methods: We obtained quasi-simultaneous RVs of Gl 388 from 2019 to 2021 with SOPHIE, the optical échelle spectrograph (R ~75k) at the Observatoire de Haute-Provence in France, and RV and Stokes V measurements with SPIRou, the near-infrared spectropolarimeter at the Canada France Hawaii Telescope (R ~70k).Results: The SOPHIE RV time series (precision of 3-5 m s-1 per visit) displays a periodic signal with a 2.23 ± 0.01 day period and 23.6 ± 0.5 m s-1 amplitude, which is consistent with previous HARPS observations obtained in 2005-2006. The SPIRou RV time series (precision of 2 ms-1 per visit) is flat at 5 ms-1 rms and displays no periodic signals. RV signals of amplitude higher than 5.3 m s-1 at a period of 2.23 days can be excluded with a confidence level higher than 99%. Using the modulation of the longitudinal magnetic field (Bℓ) measured with SPIRou as a proxy of stellar rotation, we measure a rotation period of 2.2305 ± 0.0016 days.Conclusions: SPIRou RV measurements provide solid evidence that the periodic variability of the optical RVs of Gl 388 is due to stellar activity rather than to a corotating planet. The magnetic activity nature of the optical RV signal is further confirmed by the modulation of Bℓ with the same period. The SPIRou campaign on Gl 388 demonstrates the power of near-infrared RV to confirm or infirm planet candidates discovered in the optical around active stars. Our SPIRou observations additionally reiterate how effective spectropolarimetry is at determining the stellar rotation period from the variations of Bℓ.
publishDate	2023
dc.date.none.fl_str_mv	2023-06
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/11336/254133 Carmona, A.; Delfosse, X.; Bellotti, S.; Cortés Zuleta, P.; Ould Elhkim, M.; et al.; Near-IR and optical radial velocities of the active M dwarf star Gl 388 (AD Leo) with SPIRou at CFHT and SOPHIE at OHP: A 2.23 day rotation period and no evidence for a corotating planet; EDP Sciences; Astronomy and Astrophysics; 674; 6-2023; 1-25 0004-6361 CONICET Digital CONICET
url	http://hdl.handle.net/11336/254133
identifier_str_mv	Carmona, A.; Delfosse, X.; Bellotti, S.; Cortés Zuleta, P.; Ould Elhkim, M.; et al.; Near-IR and optical radial velocities of the active M dwarf star Gl 388 (AD Leo) with SPIRou at CFHT and SOPHIE at OHP: A 2.23 day rotation period and no evidence for a corotating planet; EDP Sciences; Astronomy and Astrophysics; 674; 6-2023; 1-25 0004-6361 CONICET Digital CONICET
dc.language.none.fl_str_mv	eng
language	eng
dc.relation.none.fl_str_mv	info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/10.1051/0004-6361/202245660 info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202245660 info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/2303.16712
dc.rights.none.fl_str_mv	info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv	openAccess
rights_invalid_str_mv	https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv	application/pdf application/pdf
dc.publisher.none.fl_str_mv	EDP Sciences
publisher.none.fl_str_mv	EDP Sciences
dc.source.none.fl_str_mv	reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str	CONICET Digital (CONICET)
collection	CONICET Digital (CONICET)
instname_str	Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv	CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv	dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score	13.070432

Near-IR and optical radial velocities of the active M dwarf star Gl 388 (AD Leo) with SPIRou at CFHT and SOPHIE at OHP: A 2.23 day rotation period and no evidence for a corotating...

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