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dc.contributor.author
Chavero, Carolina Andrea
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dc.contributor.author
Reza, R. de la
dc.contributor.author
Ghezzi, L.
dc.contributor.author
Andrés, F. Llorente de
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Brunelli, María Cecilia Pereira
dc.contributor.author
Giuppone, Cristian Andrés
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dc.contributor.author
Pinzón, G.
dc.date.available
2021-01-27T17:02:51Z
dc.date.issued
2019-08
dc.identifier.citation
Chavero, Carolina Andrea; Reza, R. de la; Ghezzi, L.; Andrés, F. Llorente de; Brunelli, María Cecilia Pereira; et al.; Emerging trends in metallicity and lithium properties of debris disc stars; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 487; 3; 8-2019; 3162-3177
dc.identifier.issn
0035-8711
dc.identifier.uri
http://hdl.handle.net/11336/123908
dc.description.abstract
Dwarf stars with debris discs and planets appear to be excellent laboratories to study the core accretion theory of planets formation. These systems are however, insufficiently studied. In this paper we present the main metallicity and lithium abundance properties of these stars together with stars with only debris discs and stars with only planets. Stars without detected planets or discs are also considered. The analysed sample is formed by main-sequence FGK field single stars. Apart from the basic stellar parameters, we include the use of dusty discs masses. The main results show for the first time that the dust mass of debris disc stars with planets correlate with metallicity. We confirm that these disc dust masses are related to their central stellar masses. Separately, the masses of stars and those of planets also correlate with metallicity. We conclude that two conditions are necessary to form giant planets: to have a sufficient metallicity and also a sufficient protoplanetary mass of gas and dust. The debris discs masses of stars without giant planets do not correlate with metallicity, because they do not fulfil these two conditions. Concerning lithium, by adopting a stellar model for lithium depletion based on a strong interaction between the star and a protoplanetary disc, we found that in agreement with the model predictions, observations indicate that the main lithium depletion occurs during this initial protoplanetary evolution stage. We show that the ultimately lithium depletion is independent of the presence or absence of planets and appears to be only age dependent.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights
Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CIRCUMSTELLAR MATTER
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PLANETARY SYSTEMS
dc.subject
PLANETS AND SATELLITES: FORMATION
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STARS: ABUNDANCES
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STARS: SOLAR-TYPE
dc.subject.classification
Astronomía
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dc.subject.classification
Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
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dc.title
Emerging trends in metallicity and lithium properties of debris disc stars
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-11-19T21:28:25Z
dc.journal.volume
487
dc.journal.number
3
dc.journal.pagination
3162-3177
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Chavero, Carolina Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
dc.description.fil
Fil: Reza, R. de la. Ministerio de Ciencia, Tecnología e Innovacao. Observatorio Nacional. Departamento Astronomia y Astrofísica; Brasil
dc.description.fil
Fil: Ghezzi, L.. Ministerio de Ciencia, Tecnología e Innovacao. Observatorio Nacional. Departamento Astronomia y Astrofísica; Brasil
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Fil: Andrés, F. Llorente de. Ministerio de Ciencia, Tecnología e Innovacao. Observatorio Nacional. Departamento Astronomia y Astrofísica; Brasil
dc.description.fil
Fil: Brunelli, María Cecilia Pereira. Ministerio de Ciencia, Tecnología e Innovacao. Observatorio Nacional. Departamento Astronomia y Astrofísica; Brasil
dc.description.fil
Fil: Giuppone, Cristian Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
dc.description.fil
Fil: Pinzón, G.. Universidad Nacional de Colombia; Colombia
dc.journal.title
Monthly Notices of the Royal Astronomical Society
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/487/3/3162/5510434
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/mnras/stz1496
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1905.12066
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