The evolution of lithium in FGK dwarf stars: The lithium-rotation connection and the Li desert

Autores
Llorente De Andrés, F.; Chavero, Carolina Andrea; De La Reza, R.; Roca Fàbrega, S.; Cifuentes, C.
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We investigate two topics regarding solar mass FGK-type stars, the lithium-rotation connection (LRC), and the existence of the 'lithium desert'. We determine the minimum critical rotation velocity (v sin i), related with the LRC separating slow from rapid stellar rotators, to be 5 km s-1. This value also splits different stellar properties. For the first time we explore the behaviour of the LRC for some stellar associations with ages between 45 Myr and 120 Myr. This allows us to study the LRC age dependence at the beginning of the general spin-down stage for low-mass stars, which starts at ∼30-40 Myr. We find that each stellar group presents a characteristic minimum lithium depletion connected to a specific high rotation velocity and that this minimum changes with age. For instance, the minimum changes from ∼50 km s-1 to less than 20 km s-1 in 200 Myr. This desert was described as a limited region in the A(Li)-Teff map containing no stars. Using Teff from Gaia DR2 we detect 30 stars inside and/or near the same box originally defined as the lithium desert. Due to their intrinsic Teff errors some of these stars may be inside or outside the box, implying to a high probability that the box contains several stars. This leads us to consider that the lithium desert appears to be more a statistical distribution fluctuation than a real problem. We conclude that the lithium desert is rather due to a statistical distribution fluctuation than a real physical problem.
Fil: Llorente De Andrés, F.. Ateneo de Almagro; España. Consejo Superior de Investigaciones Científicas. Centro de Astrobiología; España
Fil: Chavero, Carolina Andrea. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Departamento de Astrofísica Estelar; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: De La Reza, R.. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil
Fil: Roca Fàbrega, S.. Universidad Complutense de Madrid; España
Fil: Cifuentes, C.. Consejo Superior de Investigaciones Científicas. Centro de Astrobiología; España
Materia
STARS: ABUNDANCES
STARS: ROTATION
STARS: SOLAR-TYPE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/152774
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/152774
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The evolution of lithium in FGK dwarf stars: The lithium-rotation connection and the Li desertLlorente De Andrés, F.Chavero, Carolina AndreaDe La Reza, R.Roca Fàbrega, S.Cifuentes, C.STARS: ABUNDANCESSTARS: ROTATIONSTARS: SOLAR-TYPEhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We investigate two topics regarding solar mass FGK-type stars, the lithium-rotation connection (LRC), and the existence of the 'lithium desert'. We determine the minimum critical rotation velocity (v sin i), related with the LRC separating slow from rapid stellar rotators, to be 5 km s-1. This value also splits different stellar properties. For the first time we explore the behaviour of the LRC for some stellar associations with ages between 45 Myr and 120 Myr. This allows us to study the LRC age dependence at the beginning of the general spin-down stage for low-mass stars, which starts at ∼30-40 Myr. We find that each stellar group presents a characteristic minimum lithium depletion connected to a specific high rotation velocity and that this minimum changes with age. For instance, the minimum changes from ∼50 km s-1 to less than 20 km s-1 in 200 Myr. This desert was described as a limited region in the A(Li)-Teff map containing no stars. Using Teff from Gaia DR2 we detect 30 stars inside and/or near the same box originally defined as the lithium desert. Due to their intrinsic Teff errors some of these stars may be inside or outside the box, implying to a high probability that the box contains several stars. This leads us to consider that the lithium desert appears to be more a statistical distribution fluctuation than a real problem. We conclude that the lithium desert is rather due to a statistical distribution fluctuation than a real physical problem.Fil: Llorente De Andrés, F.. Ateneo de Almagro; España. Consejo Superior de Investigaciones Científicas. Centro de Astrobiología; EspañaFil: Chavero, Carolina Andrea. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Departamento de Astrofísica Estelar; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; ArgentinaFil: De La Reza, R.. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; BrasilFil: Roca Fàbrega, S.. Universidad Complutense de Madrid; EspañaFil: Cifuentes, C.. Consejo Superior de Investigaciones Científicas. Centro de Astrobiología; EspañaEDP Sciences2021-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/152774Llorente De Andrés, F.; Chavero, Carolina Andrea; De La Reza, R.; Roca Fàbrega, S.; Cifuentes, C.; The evolution of lithium in FGK dwarf stars: The lithium-rotation connection and the Li desert; EDP Sciences; Astronomy and Astrophysics; 654; 10-2021; 1-130004-63611432-0746CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2021/10/aa41339-21/aa41339-21.htmlinfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202141339info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/2108.05852info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:02:09Zoai:ri.conicet.gov.ar:11336/152774instacron: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 11:02:09.572CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The evolution of lithium in FGK dwarf stars: The lithium-rotation connection and the Li desert
title The evolution of lithium in FGK dwarf stars: The lithium-rotation connection and the Li desert
spellingShingle The evolution of lithium in FGK dwarf stars: The lithium-rotation connection and the Li desert
Llorente De Andrés, F.
STARS: ABUNDANCES
STARS: ROTATION
STARS: SOLAR-TYPE
title_short The evolution of lithium in FGK dwarf stars: The lithium-rotation connection and the Li desert
title_full The evolution of lithium in FGK dwarf stars: The lithium-rotation connection and the Li desert
title_fullStr The evolution of lithium in FGK dwarf stars: The lithium-rotation connection and the Li desert
title_full_unstemmed The evolution of lithium in FGK dwarf stars: The lithium-rotation connection and the Li desert
title_sort The evolution of lithium in FGK dwarf stars: The lithium-rotation connection and the Li desert
dc.creator.none.fl_str_mv Llorente De Andrés, F.
Chavero, Carolina Andrea
De La Reza, R.
Roca Fàbrega, S.
Cifuentes, C.
author Llorente De Andrés, F.
author_facet Llorente De Andrés, F.
Chavero, Carolina Andrea
De La Reza, R.
Roca Fàbrega, S.
Cifuentes, C.
author_role author
author2 Chavero, Carolina Andrea
De La Reza, R.
Roca Fàbrega, S.
Cifuentes, C.
author2_role author
author
author
author
dc.subject.none.fl_str_mv STARS: ABUNDANCES
STARS: ROTATION
STARS: SOLAR-TYPE
topic STARS: ABUNDANCES
STARS: ROTATION
STARS: SOLAR-TYPE
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 investigate two topics regarding solar mass FGK-type stars, the lithium-rotation connection (LRC), and the existence of the 'lithium desert'. We determine the minimum critical rotation velocity (v sin i), related with the LRC separating slow from rapid stellar rotators, to be 5 km s-1. This value also splits different stellar properties. For the first time we explore the behaviour of the LRC for some stellar associations with ages between 45 Myr and 120 Myr. This allows us to study the LRC age dependence at the beginning of the general spin-down stage for low-mass stars, which starts at ∼30-40 Myr. We find that each stellar group presents a characteristic minimum lithium depletion connected to a specific high rotation velocity and that this minimum changes with age. For instance, the minimum changes from ∼50 km s-1 to less than 20 km s-1 in 200 Myr. This desert was described as a limited region in the A(Li)-Teff map containing no stars. Using Teff from Gaia DR2 we detect 30 stars inside and/or near the same box originally defined as the lithium desert. Due to their intrinsic Teff errors some of these stars may be inside or outside the box, implying to a high probability that the box contains several stars. This leads us to consider that the lithium desert appears to be more a statistical distribution fluctuation than a real problem. We conclude that the lithium desert is rather due to a statistical distribution fluctuation than a real physical problem.
Fil: Llorente De Andrés, F.. Ateneo de Almagro; España. Consejo Superior de Investigaciones Científicas. Centro de Astrobiología; España
Fil: Chavero, Carolina Andrea. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Departamento de Astrofísica Estelar; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: De La Reza, R.. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil
Fil: Roca Fàbrega, S.. Universidad Complutense de Madrid; España
Fil: Cifuentes, C.. Consejo Superior de Investigaciones Científicas. Centro de Astrobiología; España
description We investigate two topics regarding solar mass FGK-type stars, the lithium-rotation connection (LRC), and the existence of the 'lithium desert'. We determine the minimum critical rotation velocity (v sin i), related with the LRC separating slow from rapid stellar rotators, to be 5 km s-1. This value also splits different stellar properties. For the first time we explore the behaviour of the LRC for some stellar associations with ages between 45 Myr and 120 Myr. This allows us to study the LRC age dependence at the beginning of the general spin-down stage for low-mass stars, which starts at ∼30-40 Myr. We find that each stellar group presents a characteristic minimum lithium depletion connected to a specific high rotation velocity and that this minimum changes with age. For instance, the minimum changes from ∼50 km s-1 to less than 20 km s-1 in 200 Myr. This desert was described as a limited region in the A(Li)-Teff map containing no stars. Using Teff from Gaia DR2 we detect 30 stars inside and/or near the same box originally defined as the lithium desert. Due to their intrinsic Teff errors some of these stars may be inside or outside the box, implying to a high probability that the box contains several stars. This leads us to consider that the lithium desert appears to be more a statistical distribution fluctuation than a real problem. We conclude that the lithium desert is rather due to a statistical distribution fluctuation than a real physical problem.
publishDate 2021
dc.date.none.fl_str_mv 2021-10
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/11336/152774
Llorente De Andrés, F.; Chavero, Carolina Andrea; De La Reza, R.; Roca Fàbrega, S.; Cifuentes, C.; The evolution of lithium in FGK dwarf stars: The lithium-rotation connection and the Li desert; EDP Sciences; Astronomy and Astrophysics; 654; 10-2021; 1-13
0004-6361
1432-0746
CONICET Digital
CONICET
url http://hdl.handle.net/11336/152774
identifier_str_mv Llorente De Andrés, F.; Chavero, Carolina Andrea; De La Reza, R.; Roca Fàbrega, S.; Cifuentes, C.; The evolution of lithium in FGK dwarf stars: The lithium-rotation connection and the Li desert; EDP Sciences; Astronomy and Astrophysics; 654; 10-2021; 1-13
0004-6361
1432-0746
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/articles/aa/abs/2021/10/aa41339-21/aa41339-21.html
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202141339
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/2108.05852
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
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
_version_ 1846781222796132352
score 12.982451

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