Discovery of fourteen new ZZ Cetis with SOAR

Detalhes bibliográficos
Autor(a) principal: Kepler, Souza Oliveira
Data de Publicação: 2005
Outros Autores: Castanheira, Bárbara Garcia, Saraiva, Maria de Fátima Oliveira, Nitta, Atsuko, Kleinman, Scot James, Mullally, Fergal, Winget, Donald Earl, Eisenstein, D.J.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/98774
Resumo: We report the discovery of fourteen new ZZ Cetis with the 4.1 m Southern Astrophysical Research telescope, at Cerro Pachon, in Chile. The candidates were selected from the SDSS (Sloan Digital Sky Survey) DA white dwarf stars with Teff obtained from the optical spectra fit, inside the ZZ Ceti instability strip. Considering these stars are multi-periodic pulsators and the pulsations propagate to the nucleus of the star, they carry information on the structure of the star and evolution of the progenitors. The ZZ Cetis discovered till 2003 are mainly within 100 pc from the Sun, and probe only the solar vicinity. The recently discovered ones, and those reported here, may sample a distinct population as they were selected mainly perpendicular to the galactic disk and cover a distance up to ≈400 pc.
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spelling Kepler, Souza OliveiraCastanheira, Bárbara GarciaSaraiva, Maria de Fátima OliveiraNitta, AtsukoKleinman, Scot JamesMullally, FergalWinget, Donald EarlEisenstein, D.J.2014-07-26T02:09:20Z20050004-6361http://hdl.handle.net/10183/98774000537582We report the discovery of fourteen new ZZ Cetis with the 4.1 m Southern Astrophysical Research telescope, at Cerro Pachon, in Chile. The candidates were selected from the SDSS (Sloan Digital Sky Survey) DA white dwarf stars with Teff obtained from the optical spectra fit, inside the ZZ Ceti instability strip. Considering these stars are multi-periodic pulsators and the pulsations propagate to the nucleus of the star, they carry information on the structure of the star and evolution of the progenitors. The ZZ Cetis discovered till 2003 are mainly within 100 pc from the Sun, and probe only the solar vicinity. The recently discovered ones, and those reported here, may sample a distinct population as they were selected mainly perpendicular to the galactic disk and cover a distance up to ≈400 pc.application/pdfengAstronomy and astrophysics. Les Ulis. Vol. 442, no. 2 (Nov. 2005), p. 629-634Estrelas variaveisCatalogos astronomicosPulsacoes estelaresEspectros estelaresAnãs brancasAnãs brancasStars: white dwarfStars: variables: generalStars: oscillationsDiscovery of fourteen new ZZ Cetis with SOAREstrangeiroinfo: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:UFRGSORIGINAL000537582.pdf000537582.pdfTexto completo (inglês)application/pdf423927http://www.lume.ufrgs.br/bitstream/10183/98774/1/000537582.pdf9510407c2ef75bdb20790dddad00acd1MD51TEXT000537582.pdf.txt000537582.pdf.txtExtracted Texttext/plain21874http://www.lume.ufrgs.br/bitstream/10183/98774/2/000537582.pdf.txt25aaac0f5c05d8511109d47da8e36adaMD52THUMBNAIL000537582.pdf.jpg000537582.pdf.jpgGenerated Thumbnailimage/jpeg2166http://www.lume.ufrgs.br/bitstream/10183/98774/3/000537582.pdf.jpg035eac5fd83b4f389d7c6cc81397af2dMD5310183/987742018-10-22 07:42:17.198oai:www.lume.ufrgs.br:10183/98774Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-22T10:42:17Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Discovery of fourteen new ZZ Cetis with SOAR
title Discovery of fourteen new ZZ Cetis with SOAR
spellingShingle Discovery of fourteen new ZZ Cetis with SOAR
Kepler, Souza Oliveira
Estrelas variaveis
Catalogos astronomicos
Pulsacoes estelares
Espectros estelares
Anãs brancas
Anãs brancas
Stars: white dwarf
Stars: variables: general
Stars: oscillations
title_short Discovery of fourteen new ZZ Cetis with SOAR
title_full Discovery of fourteen new ZZ Cetis with SOAR
title_fullStr Discovery of fourteen new ZZ Cetis with SOAR
title_full_unstemmed Discovery of fourteen new ZZ Cetis with SOAR
title_sort Discovery of fourteen new ZZ Cetis with SOAR
author Kepler, Souza Oliveira
author_facet Kepler, Souza Oliveira
Castanheira, Bárbara Garcia
Saraiva, Maria de Fátima Oliveira
Nitta, Atsuko
Kleinman, Scot James
Mullally, Fergal
Winget, Donald Earl
Eisenstein, D.J.
author_role author
author2 Castanheira, Bárbara Garcia
Saraiva, Maria de Fátima Oliveira
Nitta, Atsuko
Kleinman, Scot James
Mullally, Fergal
Winget, Donald Earl
Eisenstein, D.J.
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Kepler, Souza Oliveira
Castanheira, Bárbara Garcia
Saraiva, Maria de Fátima Oliveira
Nitta, Atsuko
Kleinman, Scot James
Mullally, Fergal
Winget, Donald Earl
Eisenstein, D.J.
dc.subject.por.fl_str_mv Estrelas variaveis
Catalogos astronomicos
Pulsacoes estelares
Espectros estelares
Anãs brancas
Anãs brancas
topic Estrelas variaveis
Catalogos astronomicos
Pulsacoes estelares
Espectros estelares
Anãs brancas
Anãs brancas
Stars: white dwarf
Stars: variables: general
Stars: oscillations
dc.subject.eng.fl_str_mv Stars: white dwarf
Stars: variables: general
Stars: oscillations
description We report the discovery of fourteen new ZZ Cetis with the 4.1 m Southern Astrophysical Research telescope, at Cerro Pachon, in Chile. The candidates were selected from the SDSS (Sloan Digital Sky Survey) DA white dwarf stars with Teff obtained from the optical spectra fit, inside the ZZ Ceti instability strip. Considering these stars are multi-periodic pulsators and the pulsations propagate to the nucleus of the star, they carry information on the structure of the star and evolution of the progenitors. The ZZ Cetis discovered till 2003 are mainly within 100 pc from the Sun, and probe only the solar vicinity. The recently discovered ones, and those reported here, may sample a distinct population as they were selected mainly perpendicular to the galactic disk and cover a distance up to ≈400 pc.
publishDate 2005
dc.date.issued.fl_str_mv 2005
dc.date.accessioned.fl_str_mv 2014-07-26T02:09:20Z
dc.type.driver.fl_str_mv Estrangeiro
info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/98774
dc.identifier.issn.pt_BR.fl_str_mv 0004-6361
dc.identifier.nrb.pt_BR.fl_str_mv 000537582
identifier_str_mv 0004-6361
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url http://hdl.handle.net/10183/98774
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Astronomy and astrophysics. Les Ulis. Vol. 442, no. 2 (Nov. 2005), p. 629-634
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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instname:Universidade Federal do Rio Grande do Sul (UFRGS)
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reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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