Seismological studies of ZZ Ceti stars - I. The model grid and the application to individual stars

Detalhes bibliográficos
Autor(a) principal: Castanheira, Bárbara Garcia
Data de Publicação: 2008
Outros Autores: Kepler, Souza Oliveira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/90269
Resumo: We calculate and explore an extensive adiabatic model grid for pulsating white dwarfs with hydrogen-dominated atmospheres, the ZZ Ceti stars. We also compared the computed modes with the observed ones for fiveZZCeti stars that are a representative sample of the whole class of pulsators.We describe our new approach for seismological studies, using the relative observed amplitudes to give weights for the periods in the fit and the external mass and temperature determinations as a guide. Our seismological study is clear evidence that seismology is indeed a powerful tool in the study of stellar structure and evolution.
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spelling Castanheira, Bárbara GarciaKepler, Souza Oliveira2014-04-03T01:51:26Z20080035-8711http://hdl.handle.net/10183/90269000634688We calculate and explore an extensive adiabatic model grid for pulsating white dwarfs with hydrogen-dominated atmospheres, the ZZ Ceti stars. We also compared the computed modes with the observed ones for fiveZZCeti stars that are a representative sample of the whole class of pulsators.We describe our new approach for seismological studies, using the relative observed amplitudes to give weights for the periods in the fit and the external mass and temperature determinations as a guide. Our seismological study is clear evidence that seismology is indeed a powerful tool in the study of stellar structure and evolution.application/pdfengMonthly notices of the royal astronomical society. Vol. 385, no. 1 (Mar. 2008), p. 430-444Estrelas ZZ CetiEstrelas variaveisAnãs brancasStars: individual: ZZ Ceti starsStars: variables: otherWhite dwarfsSeismological studies of ZZ Ceti stars - I. The model grid and the application to individual starsEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000634688.pdf000634688.pdfTexto completo (inglês)application/pdf276556http://www.lume.ufrgs.br/bitstream/10183/90269/1/000634688.pdf578434088649664a06294253abc8028aMD51TEXT000634688.pdf.txt000634688.pdf.txtExtracted Texttext/plain56875http://www.lume.ufrgs.br/bitstream/10183/90269/2/000634688.pdf.txt01328a6b79060b05571de52a3e64419cMD52THUMBNAIL000634688.pdf.jpg000634688.pdf.jpgGenerated Thumbnailimage/jpeg2098http://www.lume.ufrgs.br/bitstream/10183/90269/3/000634688.pdf.jpgb0cfe7b8382b306183cd56f0aa40b0b3MD5310183/902692018-10-18 09:17:10.068oai:www.lume.ufrgs.br:10183/90269Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-18T12:17:10Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Seismological studies of ZZ Ceti stars - I. The model grid and the application to individual stars
title Seismological studies of ZZ Ceti stars - I. The model grid and the application to individual stars
spellingShingle Seismological studies of ZZ Ceti stars - I. The model grid and the application to individual stars
Castanheira, Bárbara Garcia
Estrelas ZZ Ceti
Estrelas variaveis
Anãs brancas
Stars: individual: ZZ Ceti stars
Stars: variables: other
White dwarfs
title_short Seismological studies of ZZ Ceti stars - I. The model grid and the application to individual stars
title_full Seismological studies of ZZ Ceti stars - I. The model grid and the application to individual stars
title_fullStr Seismological studies of ZZ Ceti stars - I. The model grid and the application to individual stars
title_full_unstemmed Seismological studies of ZZ Ceti stars - I. The model grid and the application to individual stars
title_sort Seismological studies of ZZ Ceti stars - I. The model grid and the application to individual stars
author Castanheira, Bárbara Garcia
author_facet Castanheira, Bárbara Garcia
Kepler, Souza Oliveira
author_role author
author2 Kepler, Souza Oliveira
author2_role author
dc.contributor.author.fl_str_mv Castanheira, Bárbara Garcia
Kepler, Souza Oliveira
dc.subject.por.fl_str_mv Estrelas ZZ Ceti
Estrelas variaveis
Anãs brancas
topic Estrelas ZZ Ceti
Estrelas variaveis
Anãs brancas
Stars: individual: ZZ Ceti stars
Stars: variables: other
White dwarfs
dc.subject.eng.fl_str_mv Stars: individual: ZZ Ceti stars
Stars: variables: other
White dwarfs
description We calculate and explore an extensive adiabatic model grid for pulsating white dwarfs with hydrogen-dominated atmospheres, the ZZ Ceti stars. We also compared the computed modes with the observed ones for fiveZZCeti stars that are a representative sample of the whole class of pulsators.We describe our new approach for seismological studies, using the relative observed amplitudes to give weights for the periods in the fit and the external mass and temperature determinations as a guide. Our seismological study is clear evidence that seismology is indeed a powerful tool in the study of stellar structure and evolution.
publishDate 2008
dc.date.issued.fl_str_mv 2008
dc.date.accessioned.fl_str_mv 2014-04-03T01:51:26Z
dc.type.driver.fl_str_mv Estrangeiro
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/90269
dc.identifier.issn.pt_BR.fl_str_mv 0035-8711
dc.identifier.nrb.pt_BR.fl_str_mv 000634688
identifier_str_mv 0035-8711
000634688
url http://hdl.handle.net/10183/90269
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Monthly notices of the royal astronomical society. Vol. 385, no. 1 (Mar. 2008), p. 430-444
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