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1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m21b.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34P/3KBBDF8
Repositóriosid.inpe.br/mtc-m21b/2015/09.29.19.40
Última Atualização2015:09.29.19.42.11 (UTC) administrator
Repositório de Metadadossid.inpe.br/mtc-m21b/2015/09.29.19.40.20
Última Atualização dos Metadados2018:06.04.02.55.43 (UTC) administrator
DOI10.1051/0004-6361/201525770
ISSN0004-6361
1432-0746
Chave de CitaçãoSilvaMiloRoch:2015:HoAbAn
TítuloHomogeneous abundance analysis of FGK dwarf, subgiant, and giant stars with and without giant planets
Ano2015
MêsAug.
Data de Acesso08 maio 2024
Tipo de Trabalhojournal article
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho1694 KiB
2. Contextualização
Autor1 Silva, Ronaldo da
2 Milone, André de Castro
3 Rocha-Pinto, Hélio J.
Identificador de Curriculo1
2 8JMKD3MGP5W/3C9JGHK
Grupo1
2 DAS-CEA-INPE-MCTI-GOV-BR
Afiliação1 Università di Roma Tor Vergata
2 Instituto Nacional de Pesquisas Espaciais (INPE)
3 Universidade Federal do Rio de Janeiro (UFRJ)
Endereço de e-Mail do Autor1 ronaldo.dasilva@roma2.infn.it
2 andre.milone@inpe.br
RevistaAstronomy & Astrophysics
Volume580
NúmeroA24
Nota SecundáriaA1_GEOCIÊNCIAS A1_ENGENHARIAS_III A2_MATEMÁTICA_/_PROBABILIDADE_E_ESTATÍSTICA A2_INTERDISCIPLINAR A2_ENGENHARIAS_IV A2_ASTRONOMIA_/_FÍSICA B2_ENSINO C_ENGENHARIAS_II
Histórico (UTC)2015-09-29 19:40:20 :: simone -> administrator ::
2018-06-04 02:55:43 :: administrator -> simone :: 2015
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Tipo de Versãopublisher
Palavras-ChaveMethods: data analysis
Methods: statistical
Planetary systems
Stars: abundances
Stars: fundamental parameters
Techniques: spectroscopic
ResumoAims. We have analyzed high-resolution and high signal-to-noise-ratio optical spectra of nearby FGK stars with and without detected giant planets in order to homogeneously measure their photospheric parameters, mass, age, and the abundances of volatile (C, N, and O) and refractory (Na, Mg, Si, Ca, Ti, V, Mn, Fe, Ni, Cu, and Ba) elements. Our sample contains 309 stars from the solar neighborhood (up to the distance of 100 pc), out of which 140 are dwarfs, 29 are subgiants, and 140 are giants. Methods. The photospheric parameters are derived from the equivalent widths of Fe? i and Fe? ii lines. Masses and ages come from the interpolation in evolutionary tracks and isochrones on the Hertzsprung-Russell diagram. The abundance determination is based on the equivalent widths of selected atomic lines of the refractory elements and on the spectral synthesis of C2, CN, C? i, O? i, and Na? i features. We apply a set of statistical methods to analyze the abundances derived for the three subsamples. Results. Our results show that: i) giant stars systematically exhibit underabundance in [C/Fe] and overabundance in [N/Fe] and [Na/Fe] in comparison with dwarfs, a result that is normally attributed to evolution-induced mixing processes in the envelope of evolved stars; ii) for solar analogs alone, the abundance trends with the condensation temperature of the elements are correlated with age and anticorrelated with the surface gravity, which agrees with recent studies; iii) as in the case of [Fe/H], dwarf stars with giant planets are systematically enriched in [X/H] for all the analyzed elements, except for O and Ba (the former due to limitations of statistics), confirming previous findings in the literature that it is not only iron that has an important relation with the planetary formation; and iv) giant planet hosts are also significantly overabundant for the same metallicity when the elements from Mg to Cu are combined.
ÁreaCEA
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4. Condições de acesso e uso
URL dos dadoshttp://urlib.net/ibi/8JMKD3MGP3W34P/3KBBDF8
URL dos dados zipadoshttp://urlib.net/zip/8JMKD3MGP3W34P/3KBBDF8
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Grupo de Usuáriosself-uploading-INPE-MCTI-GOV-BR
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Grupo de Leitoresadministrator
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Visibilidadeshown
Política de Arquivamentoallowpublisher allowfinaldraft
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
VinculaçãoTrabalho não Vinculado à Tese/Dissertação
Repositório Espelhourlib.net/www/2011/03.29.20.55
Unidades Imediatamente Superiores8JMKD3MGPCW/3ETR8EH
Lista de Itens Citandosid.inpe.br/bibdigital/2013/10.01.00.07 5
sid.inpe.br/mtc-m21/2012/07.13.14.40.02 1
DivulgaçãoWEBSCI; PORTALCAPES; COMPENDEX; SCOPUS.
Acervo Hospedeirosid.inpe.br/mtc-m21b/2013/09.26.14.25.20
6. Notas
Campos Vaziosalternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark nextedition notes orcid pages parameterlist parentrepositories previousedition previouslowerunit progress project readpermission rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject targetfile tertiarytype url
7. Controle da descrição
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